Part 2: Central Nervous System – Brain (Forebrain, Midbrain, Hindbrain, CSF, Meninges, Functions)
Part 2 (25 MCQs) on Central Nervous System – Brain: Forebrain, Midbrain, Hindbrain, CSF, Meninges, Functions from Chapter 21 – Neural Control and Coordination (NCERT Class 11 + NEET UG).
Part 2: Central Nervous System – Brain (Forebrain, Midbrain, Hindbrain, CSF, Meninges, Functions)
Q1. The human brain is protected by:
a) Skull
b) Meninges
c) Cerebrospinal fluid
d) All of the above
Answer: d) All of the above
Explanation:
- ✅ (d) Brain is protected by skull (bony case), meninges (coverings), and CSF (shock absorption).
Q2. How many layers of meninges cover the brain?
a) 2
b) 3
c) 4
d) 5
Answer: b) 3
Explanation:
- ✅ (b) Three meninges: dura mater (outer), arachnoid (middle), pia mater (inner).
Q3. Cerebrospinal fluid (CSF) is secreted by:
a) Pineal gland
b) Pituitary gland
c) Choroid plexus of ventricles
d) Hypothalamus
Answer: c) Choroid plexus of ventricles
Explanation:
- ✅ (c) CSF secreted by choroid plexus → cushions brain & spinal cord.
Q4. The largest part of the human brain is:
a) Cerebellum
b) Cerebrum
c) Midbrain
d) Medulla
Answer: b) Cerebrum
Explanation:
- ✅ (b) Cerebrum forms ~80% of brain, controls intelligence, memory, voluntary actions.
Q5. The cerebral cortex is made of:
a) White matter
b) Gray matter
c) Both gray and white
d) Neuroglia only
Answer: b) Gray matter
Explanation:
- ✅ (b) Cerebral cortex = gray matter (neuron cell bodies). White matter lies inside.
Q6. The corpus callosum connects:
a) Cerebrum and cerebellum
b) Two cerebral hemispheres
c) Pons and medulla
d) Midbrain and forebrain
Answer: b) Two cerebral hemispheres
Explanation:
- ✅ (b) Corpus callosum = thick nerve tract connecting hemispheres.
Q7. The part of forebrain controlling hunger and thirst is:
a) Thalamus
b) Hypothalamus
c) Cerebellum
d) Medulla
Answer: b) Hypothalamus
Explanation:
- ✅ (b) Hypothalamus regulates hunger, thirst, temperature, hormones.
Q8. The relay center of sensory information in forebrain is:
a) Thalamus
b) Hypothalamus
c) Medulla
d) Cerebellum
Answer: a) Thalamus
Explanation:
- ✅ (a) Thalamus relays sensory impulses to cerebral cortex.
Q9. The midbrain is located between:
a) Cerebrum and spinal cord
b) Forebrain and hindbrain
c) Pons and cerebellum
d) Thalamus and hypothalamus
Answer: b) Forebrain and hindbrain
Explanation:
- ✅ (b) Midbrain lies between forebrain and hindbrain.
Q10. The corpora quadrigemina are found in:
a) Cerebrum
b) Midbrain
c) Cerebellum
d) Medulla
Answer: b) Midbrain
Explanation:
- ✅ (b) Corpora quadrigemina = 4 lobes in midbrain (visual + auditory reflexes).
Q11. The part of brain regulating posture and balance is:
a) Cerebrum
b) Cerebellum
c) Midbrain
d) Pons
Answer: b) Cerebellum
Explanation:
- ✅ (b) Cerebellum = posture, balance, coordination.
Q12. Breathing and heart rate are controlled by:
a) Pons and medulla
b) Cerebellum
c) Hypothalamus
d) Cerebrum
Answer: a) Pons and medulla
Explanation:
- ✅ (a) Medulla = cardiac + respiratory centers; pons assists respiration.
Q13. Which brain part connects brain with spinal cord?
a) Cerebrum
b) Medulla oblongata
c) Pons
d) Thalamus
Answer: b) Medulla oblongata
Explanation:
- ✅ (b) Medulla → continuation into spinal cord.
Q14. Which structure of hindbrain regulates swallowing and vomiting?
a) Cerebellum
b) Pons
c) Medulla oblongata
d) Midbrain
Answer: c) Medulla oblongata
Explanation:
- ✅ (c) Medulla → reflex centers (vomiting, swallowing, coughing, sneezing).
Q15. The brain center for vision is located in:
a) Frontal lobe
b) Parietal lobe
c) Occipital lobe
d) Temporal lobe
Answer: c) Occipital lobe
Explanation:
- ✅ (c) Occipital lobe (cerebrum) → vision.
Q16. The brain center for hearing is located in:
a) Frontal lobe
b) Temporal lobe
c) Occipital lobe
d) Cerebellum
Answer: b) Temporal lobe
Explanation:
- ✅ (b) Temporal lobe → auditory cortex.
Q17. The brain part associated with speech is:
a) Broca’s area
b) Cerebellum
c) Hypothalamus
d) Midbrain
Answer: a) Broca’s area
Explanation:
- ✅ (a) Broca’s area (frontal lobe) → speech production.
Q18. Which brain fluid provides buoyancy and shock absorption?
a) Plasma
b) Synovial fluid
c) Cerebrospinal fluid
d) Lymph
Answer: c) Cerebrospinal fluid
Explanation:
- ✅ (c) CSF = cushioning, nutrient transport.
Q19. The brain part regulating circadian rhythm is:
a) Pons
b) Pineal gland
c) Hypothalamus
d) Medulla
Answer: b) Pineal gland
Explanation:
- ✅ (b) Pineal gland secretes melatonin → biological clock.
Q20. Which lobe controls voluntary movements?
a) Frontal lobe
b) Temporal lobe
c) Occipital lobe
d) Parietal lobe
Answer: a) Frontal lobe
Explanation:
- ✅ (a) Frontal lobe = primary motor area.
Q21. The sensory cortex is located in:
a) Frontal lobe
b) Parietal lobe
c) Occipital lobe
d) Temporal lobe
Answer: b) Parietal lobe
Explanation:
- ✅ (b) Parietal lobe = sensory perception.
Q22. Which part of brain is called “little brain”?
a) Cerebrum
b) Cerebellum
c) Pons
d) Medulla
Answer: b) Cerebellum
Explanation:
- ✅ (b) Cerebellum → posture & balance.
Q23. Which structure connects cerebrum to spinal cord?
a) Brainstem
b) Cerebellum
c) Thalamus
d) Hypothalamus
Answer: a) Brainstem
Explanation:
- ✅ (a) Brainstem = midbrain + pons + medulla.
Q24. The seat of intelligence, memory, and learning is:
a) Cerebellum
b) Cerebrum
c) Hypothalamus
d) Midbrain
Answer: b) Cerebrum
Explanation:
- ✅ (b) Cerebrum = higher cognitive functions.
Q25. Which lobe processes smell sensations?
a) Temporal lobe
b) Occipital lobe
c) Frontal lobe
d) Parietal lobe
Answer: a) Temporal lobe
Explanation:
- ✅ (a) Temporal lobe = olfactory perception.
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