The brainstem is the lower part of the brain that joins the brain to the spinal cord. NCERT says it has THREE parts: mid-brain, pons and medulla oblongata (top to bottom). Memory hook: think "MPM going down" — Mid-brain on top, Pons in the middle, Medulla at the bottom just before the spinal cord.
The brainstem is the yellow column (mid-brain, pons, medulla) joining the brain to the spinal cord. The cerebrum (forebrain) and cerebellum (hindbrain) are shown nearby but are NOT part of the brainstem.
Your doubts, answered
Is the cerebrum a part of the brainstem?
No. This is the most common mix-up NEET uses. The cerebrum is part of the FOREBRAIN, not the brainstem. The brainstem has only three parts: mid-brain, pons and medulla oblongata. If an option says the brainstem contains the cerebrum (or thalamus, or corpus callosum), it is wrong.
Is the cerebellum a part of the brainstem?
No. The cerebellum is part of the HINDBRAIN, but it is NOT counted in the brainstem. The hindbrain has pons, cerebellum and medulla, but the brainstem is only mid-brain + pons + medulla. So pons and medulla belong to BOTH the hindbrain and the brainstem, while the cerebellum sits outside the brainstem.
What is the difference between brainstem and hindbrain?
Hindbrain = pons + cerebellum + medulla. Brainstem = mid-brain + pons + medulla. The brainstem adds the mid-brain (from the midbrain region) but drops the cerebellum. The overlap is pons and medulla. NEET loves to swap 'cerebellum' into a brainstem list to trap you.
Why is it called a 'stem'?
Because it is a narrow stalk-like part at the base of the brain that forms the connection between the brain and the spinal cord. NCERT says: 'Brain stem forms the connections between the brain and spinal cord.' All signals going up or down pass through it.
Which brainstem part controls breathing and heartbeat?
The medulla oblongata, which is the lowest part of the brainstem. NCERT: the medulla contains centres which control respiration, cardiovascular reflexes and gastric secretions. Because it controls these vital reflexes, damage to it is life-threatening.
⚠️ The NEET trap ✗ Brainstem = mid-brain, pons and cerebellum (or thalamus/cerebrum). ✓ Brainstem = mid-brain, pons and medulla oblongata. 🧠 NEET repeatedly swaps ONE word: it replaces 'medulla oblongata' with cerebellum, cerebrum, or thalamus. Lock the exact NCERT line: 'Three major regions make up the brain stem; mid brain, pons and medulla oblongata.' Cerebellum is hindbrain but NOT brainstem.
Real NEET questions
NEET 2023 Phase 2
Brainstem of human brain consists of:
A · Thalamus, Hypothalamus and Corpora quadrigemina
B · Amygdala, Hippocampus and Corpus Callosum
C · Mid-brain, Pons and Medulla Oblongata ✓
D · Forebrain, Cerebellum and Pons
Solution: NCERT states three major regions make up the brain stem: mid-brain, pons and medulla oblongata, and it forms the connection between brain and spinal cord. Option A lists forebrain/midbrain structures, B lists limbic and forebrain structures, and D wrongly puts cerebellum (hindbrain, not brainstem) in the list.
NEET 2024
Statement I: The cerebral hemispheres are connected by a nerve tract known as corpus callosum. Statement II: The brain stem consists of the medulla oblongata, pons and cerebrum. Choose the most appropriate answer.
A · Both Statement I and Statement II are incorrect.
B · Statement I is correct but Statement II is incorrect. ✓
C · Statement I is incorrect but Statement II is correct.
D · Both Statement I and Statement II are correct.
Solution: Statement I is correct: the two cerebral hemispheres are joined by the corpus callosum. Statement II is incorrect because the brainstem is mid-brain, pons and medulla oblongata, NOT cerebrum — the cerebrum belongs to the forebrain. This is the classic cerebrum-in-brainstem trap.
NEET 2024
Match List I with List II. List I: A. Pons, B. Hypothalamus, C. Medulla, D. Cerebellum. List II: I. Provides additional space for neurons, regulates posture and balance; II. Controls respiration and gastric secretions; III. Connects different regions of the brain; IV. Neurosecretory cells.
A · A-III, B-IV, C-II, D-I ✓
B · A-I, B-III, C-II, D-IV
C · A-II, B-I, C-III, D-IV
D · A-II, B-III, C-I, D-IV
Solution: Pons has fibre tracts that interconnect brain regions (III). Hypothalamus has neurosecretory cells (IV). Medulla controls respiration and gastric secretions (II). Cerebellum gives extra space for neurons and controls posture/balance (I). So A-III, B-IV, C-II, D-I.
Solved Neural Control and Coordination NEET PYQs
Try the real previous-year questions from this chapter — each with the answer and a full solution.
What are the three parts of the brainstem in order?
From top to bottom: mid-brain, then pons, then medulla oblongata. The medulla is connected directly to the spinal cord.
Is the pons part of both hindbrain and brainstem?
Yes. The pons and the medulla oblongata belong to both the hindbrain and the brainstem. Only the mid-brain is added to make the brainstem, and only the cerebellum is the hindbrain part left out of the brainstem.
What is the main function of the brainstem?
It forms the connection between the brain and the spinal cord, so all nerve signals pass through it. Its lowest part, the medulla, also controls vital reflexes like breathing, heartbeat and gastric secretions.
Why do NEET students lose this easy mark?
Because they confuse the brainstem list with the hindbrain list and pick 'cerebellum', or they get tricked by 'cerebrum'. Memorise the exact NCERT wording: mid-brain, pons and medulla oblongata.
