B1 — Lesson 14

The Human Body & Articles

Bulgarian Suffixes vs English "The" · Possessives (My/Your) · Ailments: A vs Zero Article · Generalizations · Unique Organs · The Action Exception
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Vocabulary: The Human Body

B1 Focus: Learn the key vocabulary for talking about the human body — its parts, organs, and systems. These words appear throughout the reading, grammar examples, and exercises in this lesson.

Head & Face (Глава и лице)

Skull/skʌl/Череп
Brain/breɪn/Мозък
Jaw/dʒɔː/Челюст
Forehead/ˈfɔː.hed/Чело
Temple/ˈtem.pəl/Слепоочие
Cheek/tʃiːk/Буза
Chin/tʃɪn/Брадичка
Nostril/ˈnɒs.trəl/Ноздра

Torso & Limbs (Торс и крайници)

Spine / Backbone/spaɪn/Гръбначен стълб
Rib/rɪb/Ребро
Collarbone/ˈkɒl.ə.bəʊn/Ключица
Shoulder blade/ˈʃəʊl.də bleɪd/Лопатка
Elbow/ˈel.bəʊ/Лакът
Wrist/rɪst/Китка / Китка на ръката
Knuckle/ˈnʌk.əl/Кокалче (на пръст)
Thigh/θaɪ/Бедро
Shin/ʃɪn/Пищял
Ankle/ˈæŋ.kəl/Глезен
Heel/hiːl/Пета

Organs & Internal Systems (Органи и системи)

Heart/hɑːt/Сърце
Lung/lʌŋ/Бял дроб
Liver/ˈlɪv.ər/Черен дроб
Kidney/ˈkɪd.ni/Бъбрек
Stomach/ˈstʌm.ək/Стомах
Intestine/ɪnˈtes.tɪn/Черво
Bladder/ˈblæd.ər/Пикочен мехур
Immune system/ɪˈmjuːn ˌsɪs.təm/Имунна система

Joints, Muscles & Tissue (Стави, мускули и тъкани)

Joint/dʒɔɪnt/Става
Muscle/ˈmʌs.əl/Мускул
Tendon/ˈten.dən/Сухожилие
Ligament/ˈlɪɡ.ə.mənt/Връзка (лигамент)
Nerve/nɜːv/Нерв
Vein/veɪn/Вена
Artery/ˈɑː.tər.i/Артерия

Common Ailments (Чести оплаквания) B2 Level Up

A headache/ə ˈhed.eɪk/Главоболие
A stomach ache/ə ˈstʌm.ək eɪk/Болки в стомаха
A sore throat/ə sɔː θrəʊt/Възпалено гърло
High blood pressure/haɪ blʌd ˈpreʃ.ər/Високо кръвно налягане
Insomnia/ɪnˈsɒm.ni.ə/Безсъние

Grammar Lab: Articles with Body Parts

Key concept: In Bulgarian, the definite article is attached to the end of the noun as a suffix (e.g. ръката, главата, коляното). In English, the article is always a separate word — the, a/an, or nothing at all (called the zero article). Knowing when English uses each choice is one of the biggest challenges for Bulgarian learners.

1. Bulgarian Suffixes vs English "The"

In Bulgarian, whether a noun is definite depends on its ending, which changes according to gender and number. In English, there is only one definite article — the — and it never changes.

This means that every Bulgarian definite suffix maps to exactly one English word: the.

Bulgarian Gender / Number Bulgarian Example English Translation
Masculine (-ът / -а) гръбнакът / носа the spine / the nose
Feminine (-та) ръката / главата the hand / the head
Neuter (-то) ухото / коляното the ear / the knee
Plural (-те / -та) очите / краката the eyes / the legs

⚠️ Important: Just because Bulgarian uses a definite suffix does not always mean English uses the. English has different rules for different situations — which is exactly what the rest of this Grammar Lab covers.

📝 Easy: Which article? Each sentence is about a body part. Read the context and choose the correct article — the, a possessive (my / his / her / their), or — (no article). Write your answer in the gap.
1. ___ spine runs from the base of the skull to the pelvis. [unique structure — general fact]
2. She sprained ___ wrist when she fell off her bike on the way to work.
3. The nurse patted the child on ___ head and told him the injection was over.
4. ___ bones lose density gradually if a person does not get enough calcium. [general fact]
5. He twisted ___ ankle badly on the wet pavement and had to be helped inside.
🎯 Hard: The or My/Your/His/Her? Choose the correct article for each gap. In some sentences the is correct; in others a possessive (my, his, her, etc.) is needed. See Rule 2 below for guidance — but try these first.
1. He hurt ___ shoulder during training yesterday.
2. The physiotherapist took him by ___ hand and guided him through the exercise.
3. She twisted ___ ankle on the stairs and could barely walk.
4. The nurse patted the child on ___ head to calm him down.
5. I burned ___ hand on the cooker this morning.

2. The Possessive Preference: My Arm, Not the Arm

In Bulgarian, because the definite suffix is attached directly to the noun, sentences like "Нараних ръката" (literally "I hurt the arm") are perfectly natural. In English, however, this sounds strange. English strongly prefers a possessive adjective (my, your, his, her, its, our, their) when referring to a body part that belongs to the subject of the sentence.

The simple test is: Is the body part attached to the person doing the action? If yes, use a possessive.

✗ I hurt the arm.
✗ She broke the leg skiing.
✗ He raised the hand to ask a question.
✓ I hurt my arm.
✓ She broke her leg skiing.
✓ He raised his hand to ask a question.

Use a possessive when…

  • …the body part belongs to the subject: "She sprained her wrist."
  • …someone is acting on their own body: "He cut his finger."
  • …describing how someone feels: "My back is aching."

Exceptions — keep "the"

  • Action formula (Rule 6): "She grabbed him by the arm."
  • Unique organs as a concept: "The brain controls speech."
  • Scientific or medical context: "The femur is the longest bone."
📝 Easy: Possessive or "The"? Complete each sentence with the correct possessive adjective (my, his, her, our, their) or the.
1. She cut ___ finger while chopping vegetables.
2. He fell off his bike and bruised ___ knee badly.
3. I woke up with ___ neck completely stiff — I must have slept in a bad position.
4. The children grazed ___ knees when they fell off the climbing frame.
5. After the race, she could barely lift ___ arms above ___ head.
🎯 Hard: Error Correction. Each sentence contains a mistake with the article or possessive. Rewrite the sentence correctly.
1. "He dislocated the shoulder during the match." → Correct it:
2. "I twisted my ankle, so I went to A&E." — Is this correct? Type correct or rewrite it:
3. "She broke the wrist in two places." → Correct it:
4. "They both strained their backs lifting heavy boxes." — Is this correct? Type correct or rewrite it:
5. "I burnt my hand, so the nurse bandaged the hand for me." → Correct it (both clauses):

3. Ailments: A/An vs Zero Article

In Bulgarian, you say "имам болка" (I have pain) without an article. In English, many minor illnesses and symptoms are treated as countable events and require a/an.

Think of it this way: a headache is something that happens to you — one specific episode, like an event. That is why it takes a. A condition like high blood pressure is not a single episode — it is an ongoing state with no clear "start" or "end", so it takes no article.

Use a / an for episodes & symptoms

  • "I have a headache."
  • "She has a sore throat."
  • "He caught a cold."
  • "She has a temperature / a fever."
  • "He has a stomach ache."
  • "She has a cough."

Use zero article (Ø) for conditions

  • "She has Ø high blood pressure."
  • "He suffers from Ø insomnia."
  • "She was diagnosed with Ø diabetes."
  • "He has Ø cancer."
  • Note: "the flu" is also common alongside "flu".
📝 Easy: A/An or Zero Article? Fill in the gap with a, an, or leave it blank (zero article). If no article is needed, type —.
1. I've had ___ terrible headache all morning.
2. She was diagnosed with ___ diabetes last year.
3. He woke up with ___ sore throat and couldn't swallow.
4. My grandfather has suffered from ___ insomnia for years.
5. The child has ___ high temperature — the GP says it might be a viral infection.
6. She's had ___ persistent cough for three weeks now.
🎯 Hard: Choose the Correct Option. Three options are given. Choose the one that is natural and correct in UK English.
1. He's been off work all week because he has ___ flu.
2. My back pain is ___ chronic condition — it has never fully gone away.
3. She took a painkiller because she had ___ splitting headache.
4. The doctor confirmed he had ___ cancer in the early stages.
5. After the long hike, both of them had ___ terrible blisters on their heels.

4. Generalisations: The Zero Article

In Bulgarian, when making a general statement about a category of things, the definite suffix is typically used: "Костите са здрави" (literally "The bones are strong" — but meaning "Bones are strong in general"). In English, this is exactly the opposite: when talking about all instances of something in general, plural nouns take no article at all.

This is called the zero article (Ø). It is not a mistake — it is the correct choice for general truths.

✗ The lungs absorb oxygen from the air.
(This sounds as if you mean a specific pair of lungs — perhaps one patient's.)
✓ Ø Lungs absorb oxygen from the air.
(General scientific fact — no article needed.)

General facts → Zero article

  • "Ø Bones contain calcium."
  • "Ø Muscles need protein to repair."
  • "Ø Nerves carry signals to the brain."

Specific reference → Use "the"

  • "The bones in her foot were fractured." (her specific bones)
  • "The muscles around the knee were strained." (specific muscles)
📝 Easy: General or Specific? Add the or write — (zero article) in each gap.
1. ___ kidneys filter waste products from the blood. [general fact]
2. The surgeon examined ___ kidneys on the scan carefully. [specific — this patient's]
3. ___ tendons connect muscles to bones throughout the body. [general fact]
4. ___ tendons in his knee were badly damaged in the accident. [specific — his]
5. ___ arteries carry oxygenated blood away from the heart. [general fact]
🎯 Hard: The or —? Read each sentence carefully. Decide whether the plural noun refers to a general category (→ —) or to a specific, identified set (→ the).
1. ___ tendons in his right shoulder had been torn and needed surgical repair. [specific — his]
2. ___ tendons connect muscles to bones and can tear under sudden extreme force. [general fact]
3. ___ nerves in the lower back were being compressed by a slipped disc. [specific — this patient's]
4. ___ nerves carry electrical signals from the brain to every part of the body. [general fact]
5. The surgeon explained that ___ muscles surrounding the knee had weakened considerably. [specific — this patient's]

5. Scientific Specificity: Unique Organs

When we refer to a single organ that performs a unique biological function — or a biological system of which there is only one in the body — we use the. This is the case where English comes closest to the Bulgarian definite suffix: both languages are saying "this specific, well-known thing".

Key question: Is there only one of it in the body, or does it refer to a specific biological system? If yes → use the.

Unique single organs → the

  • "The heart pumps blood around the body."
  • "The brain controls all bodily functions."
  • "The liver processes toxins."
  • "The stomach produces digestive acid."

Biological systems → the

  • "The immune system fights infection."
  • "The nervous system relays signals."
  • "The digestive system breaks down food."
  • "The cardiovascular system includes the heart and blood vessels."

⚠️ Note on paired organs: Organs that come in pairs — kidneys, lungs, eyes, ears — follow Rule 4 (zero article for generalisations, the for specific reference). Only say "the kidney" if you mean a specific one, e.g. "The kidney on the left showed a small cyst."

📝 Easy: The or —? Each sentence refers to a body organ. Decide whether to use the or no article (—). Write your answer in the gap.
1. ___ heart pumps blood around the body continuously. [unique organ — general truth]
2. ___ kidneys can be damaged by long-term use of certain painkillers. [paired organs — general truth]
3. ___ liver processes everything you eat and drink. [unique organ — general truth]
4. ___ lungs take in oxygen and release carbon dioxide with each breath. [paired organs — general truth]
5. ___ immune system responds to infection by producing antibodies. [unique system — general truth]
🎯 Hard: The, a/an, or Zero? Each gap involves a body organ. Think carefully: is this a general fact about a unique organ (→ the), a generalisation about a category (→ zero article), or a countable episode (→ a/an)?
1. ___ brain continues to develop until a person is in their mid-twenties. [unique organ — general truth]
2. ___ kidneys are responsible for regulating fluid balance in the body. [paired organs — general truth]
3. He had ___ transplant after his liver began to fail. [countable medical event]
4. ___ heart on the left side of the scan appeared enlarged. [specific — this patient's]
5. ___ lungs exchange carbon dioxide for oxygen with every breath. [general truth]

6. The "Action" Exception: Verb + Person + Preposition + The

There is one specific context where English uses the instead of a possessive — and this is the pattern that surprises most learners. It happens when an action is performed on a person's body via a preposition. In this structure, the body part belongs to the person mentioned, yet we still use the.

The formula: Verb + person + preposition + the + body part

✗ He hit me on my shoulder.
✗ She looked him in his eyes.
✗ The nurse took me by my hand.
✓ He hit me on the shoulder.
✓ She looked him in the eye.
✓ The nurse took me by the hand.

More examples

  • "She grabbed him by the arm."
  • "He patted her on the back."
  • "The ball hit him on the head."
  • "She kissed him on the cheek."

Why "the"?

  • The body part is already identified by who it belongs to (the person in the sentence).
  • Using "the" signals we are talking about a known, specific body part without repeating the possessive.
  • This is a fixed feature of English — it must be memorised.
📝 Easy: My/His/Her or The? Choose the correct article for each gap — a possessive or the.
1. The doctor tapped him on ___ knee to test his reflexes.
2. She grabbed him by ___ collar and pulled him away from the road.
3. He hurt ___ back lifting a heavy box at work. [no preposition — he acted on himself]
4. The physio held her by ___ elbow to help her stand up.
5. He looked her straight in ___ eye and apologised.
🎯 Hard: All Rules Together. Read each sentence and decide which rule applies. Fill in each gap with the, a possessive (my/his/her/their), or nothing (—).
1. She strained ___ shoulder at the gym and couldn't lift anything for a week. [possessive — she acted on herself]
2. The coach put his hand on ___ player's shoulder to calm him down. [action formula — on + body part]
3. ___ spine protects the spinal cord and supports the entire upper body. [unique structure — general truth]
4. ___ joints can become stiff and painful as a result of prolonged inflammation. [general truth — plural]
5. He has ___ chronic pain in ___ lower back — it flares up whenever he sits for too long.

Reading: The Human Body

Read both texts. Pay attention to how articles are used with body parts and conditions. Comprehension questions follow each text.
🦴

Text 1 — Listening to Your Body

Most people ignore minor aches and pains, hoping they will go away on their own. A sore shoulder here, a stiff knee there — nothing serious, we tell ourselves. But the body is constantly sending signals, and learning to read them can make a real difference. I first noticed something was wrong when I woke up one morning and couldn't turn my head. The muscles in my neck were completely locked. My GP referred me to a physiotherapist, who explained that years of sitting at a desk with poor posture had gradually tightened the tendons in my upper back and neck. The spine, she told me, is not simply a rigid structure — it is a dynamic system that relies on the surrounding muscles and ligaments for support. When those muscles weaken, the vertebrae begin to press on the nerves, causing pain and stiffness. She showed me a diagram and pointed to the area of my spine that was most affected. She then took me by the shoulder and helped me into the correct posture. "Bones don't lie," she said, pressing gently on my shoulder blade. "Your body is telling you exactly what it needs — you just need to listen." Within three weeks of daily exercises, the pain had reduced significantly. I had a mild ache in my lower back for another fortnight, but that faded too. The lesson I took away was simple: prevention is always better than cure, and small daily habits — good posture, regular movement, and adequate rest — are what keep the musculoskeletal system working well.

Comprehension Questions — Text 1

1. What was the writer's initial symptom?

2. According to the physiotherapist, what had caused the problem?

3. How did the physiotherapist help the writer adopt the correct posture? (Detail)

4. What is the main message of the text?

🫀

Text 2 — How the Body Defends Itself

The human body is, in many ways, an extraordinary self-repairing machine. When you get a cut, the blood begins to clot within minutes. When a virus enters the bloodstream, the immune system mobilises millions of cells to identify and destroy the invader. When a bone is fractured, new bone tissue begins to grow almost immediately. At the centre of all this activity is the brain. The brain does not simply control voluntary movement — it monitors every organ, adjusts hormone levels, regulates body temperature, and even influences how quickly the heart beats. A healthy brain is essential to a healthy body. Yet many people take care of their muscles and joints while paying very little attention to their brain. Sleep, in particular, is when the brain clears itself of waste proteins that accumulate during the day. People who suffer from insomnia or who consistently sleep fewer than six hours a night put significant strain on the nervous system. The heart, like the brain, rewards consistent care. Cardiovascular disease — a term that covers conditions affecting the heart and blood vessels — is the leading cause of death worldwide. The good news is that many of the risk factors are manageable: regular physical activity, a balanced diet, not smoking, and maintaining a healthy weight all contribute to keeping the cardiovascular system in good condition. As one cardiologist put it, tapping the table with her finger: "The heart does not ask for much. It asks for movement, rest, and a little respect."

Comprehension Questions — Text 2

1. Which of the following is NOT mentioned as something the brain does?

2. According to the text, what happens during sleep?

3. What does the writer mean by calling the body "an extraordinary self-repairing machine"? (Inference)

4. What is the cardiologist's main point at the end of the text?

Text 1 / 2

Cloze Text: The Body & Articles

Read both texts carefully. Choose one word or phrase from the box for each gap. There are 16 words in the box but only 14 gaps — two words will not be used. Each word may be used only once.
Word box:   the knee  ·  his shoulder  ·  the shoulder  ·  a headache  ·  the brain  ·  — muscles  ·  the immune system  ·  her wrist  ·  a sore throat  ·  the liver  ·  insomnia  ·  a cold  ·  — tendons  ·  the eye  ·  the spine  ·  the lungs

Text 1 — A Busy Week at the Clinic

It had been an exhausting week at the physiotherapy clinic. On Monday, a teenage footballer came in with a swollen (1) after a bad tackle — the joint had not been fractured, thankfully, but the surrounding (2) were badly strained. On Tuesday, a retired teacher arrived complaining of stiffness in (3) — years of poor posture had finally taken their toll. On Wednesday, a young mother came in rubbing (4) — she had fallen awkwardly and suspected a fracture. And on Thursday, a delivery driver needed (5) assessed after he had been grabbed by (6) during a road rage incident. By Friday, the physio herself had (7) and was ready for the weekend.

Text 2 — A Science Lesson

The biology teacher held up a diagram of the human body and began her lesson. "Let's start with (8)," she said, pointing to the head. "It controls everything — thought, movement, sensation." She moved on to (9), explaining how they exchange oxygen and carbon dioxide with each breath. "And here," she said, tapping the diagram, "is (10) — one of the most hardworking organs in the body." One student asked whether drinking alcohol really damaged it. "Absolutely," she said, looking the student in (11). She then explained that (12) need regular use to stay strong — without movement, they weaken and shrink. She ended by talking about (13), which she described as the body's personal defence force — constantly on alert. A student at the back sneezed loudly. "You might want to look after yours," she said with a smile, "before you give everyone else (14)."

Key Word Transformation (KWT)

How it works: Each item gives you a sentence, then a key word in capitals. Use that key word to complete the second sentence so it means the same as the first. Write 2–5 words in the gap — the key word must be included and must not be changed. Articles, possessives, and word order all count.

Exercises: Articles with Body Parts

A series of targeted exercises covering all six grammar rules. Work through them in order — each one focuses on a different aspect of the lesson.

Tense Writing

Put the verb in brackets into the correct tense. Read the context clues in each sentence carefully. Tenses covered: Present Simple, Present Continuous, Present Perfect Simple, Present Perfect Continuous, Past Simple, Past Continuous, Past Perfect Simple, Past Perfect Continuous, Future with will / going to / Present Continuous.
📝 Exercise 1 (1–10)
1. The brain ___ (control) all voluntary and involuntary functions in the body. [general fact]
2. She ___ (have) a terrible headache since she woke up this morning.
3. He ___ (fall) and break his wrist during a hiking trip last weekend.
4. When the doctor arrived, the patient ___ (already / lose) consciousness.
5. The physiotherapist ___ (examine) her spine carefully when the X-ray results came through.
6. Muscles ___ (need) regular exercise to stay strong and avoid atrophy. [general fact]
7. He ___ (complain) about a pain in his lower back for months — the GP has finally referred him.
8. She ___ (run) for over an hour when she felt a sharp pull in her left knee.
9. Ligaments ___ (connect) bone to bone and help stabilise joints. [general fact]
10. I ___ (see) the specialist next Thursday — my GP made the referral this morning. [confirmed plan]
📝 Exercise 2 (11–20)
1. The heart ___ (pump) roughly five litres of blood per minute at rest. [general fact]
2. He ___ (not / eat) anything since yesterday evening — he has been feeling nauseous all day.
3. She ___ (work) as a cardiologist for twelve years before moving into research.
4. The immune system ___ (produce) antibodies whenever it detects a foreign pathogen. [general fact]
5. He ___ (sit) in the waiting room for forty minutes when the consultant finally called his name.
6. The consultant ___ (currently / review) the scan results — she will be with you shortly.
7. She ___ (already / visit) three different specialists by the time she received a diagnosis.
8. Tendons ___ (attach) muscle to bone and can tear under sudden extreme force. [general fact]
9. The surgeon ___ (operate) on the damaged knee joint for over three hours yesterday.
10. He ___ (take) anti-inflammatory medication for a week now and the swelling has reduced noticeably.
🎯 Exercise 3 (21–30)
1. She ___ (not / sleep) properly for over a week — the pain in her back keeps waking her up.
2. Nerves ___ (carry) electrical signals between the brain and the rest of the body. [general fact]
3. The nurse ___ (wrap) his ankle carefully when the doctor walked in to inspect it.
4. By the time the ambulance arrived, she ___ (already / break) two ribs in the fall.
5. The hospital ___ (open) a new orthopaedic ward next month — the funding was confirmed last week. [confirmed future plan]
6. She ___ (miss) three physiotherapy sessions this month — her recovery is falling behind schedule.
7. Veins ___ (return) deoxygenated blood to the heart from the rest of the body. [general fact]
8. He ___ (train) intensively for six months before he tore the ligament in his left knee.
9. She ___ (recover) well — the consultant says she can return to light exercise next week.
10. I ___ (feel) a sudden sharp pain in my chest yesterday afternoon, so I went straight to A&E.
🎯 Exercise 4 (31–40)
1. The liver ___ (filter) toxins from the blood continuously throughout the day. [general fact]
2. He ___ (not / see) this specialist since his surgery two years ago.
3. The patient ___ (lie) still on the table for over an hour when the anaesthetic finally wore off.
4. She ___ (study) anatomy for three years before she realised she wanted to specialise in neurology.
5. The physio ___ (show) him the stretches slowly and carefully so he could follow along.
6. Arteries ___ (become) narrower with age if a person has a high-fat diet. [general fact]
7. She ___ (take) the new medication for five days now and she already feels a significant difference.
8. He ___ (never / have) surgery before this procedure, so he was understandably nervous.
9. The hospital ___ (treat) over three hundred patients during the cold snap last January.
10. The consultant ___ (write) up her notes when the emergency call came in from the ward.
🎯 Exercise 5 (41–50)
1. She ___ (not / exercise) at all for six weeks after the injury, which weakened her muscles considerably.
2. The spine ___ (support) the full weight of the upper body and protect the spinal cord. [general fact]
3. He ___ (wait) for his MRI results for over three weeks when the letter finally arrived.
4. The ward doctor ___ (check) all patients' charts before the morning briefing — she does this every day. [habitual]
5. By the time the specialist arrived, the swelling in his ankle ___ (spread) up to the shin.
6. She ___ (suffer) from chronic insomnia for two years before a sleep specialist finally identified the cause.
7. I ___ (go) for a check-up next week — I booked it after the GP suggested it at my last appointment. [confirmed plan]
8. Antibiotics ___ (not / work) against viral infections — they are only effective against bacteria. [general fact]
9. He ___ (already / miss) two follow-up appointments this month — the clinic has sent him a final reminder.
10. She ___ (just / have) a blood test and is waiting for the results to come back.