Neural Control and CoordinationNEET MCQs with solutions
Neural Control and Coordination explains the neuron, how a nerve impulse is generated and transmitted, the parts of the human brain and reflex action. NEET questions test neuron types, the ionic basis of the resting potential, synapses and the function of each part of the brain.
- Class
- 11 Biology
- Free on this page
- 24 questions
- In the RankUp app
- 760 questions
- ELITE questions
- 76
- NCERT topics
- 4
Practise 24 questions
Tap an option to check it. Questions from every NCERT topic in this chapter, from easy to hard.
Q1Human Neural System
Which of the following correctly describes a multipolar neuron?
Not quite — the answer is A.
Multipolar neurons have one axon and multiple dendrites; they are the most common type in the CNS, including motor neurons. Bipolar neurons have one axon and one dendrite.
Q2Human Neural System
Which region of the neuron acts as the trigger zone for generation of action potential?
Not quite — the answer is B.
The axon hillock integrates all excitatory and inhibitory inputs from dendrites; when net depolarisation reaches threshold, it initiates the action potential. Synaptic vesicles and Nissl bodies have no role in initiation.
Q3Human Neural System
The Na⁺/K⁺ ATPase pump maintains resting potential by pumping ions in which ratio?
Not quite — the answer is A.
The Na⁺/K⁺ ATPase actively transports 3 Na⁺ out and 2 K⁺ in per cycle, creating net negative charge inside and contributing to resting membrane potential. Option B reverses the ratio — a common NEET trap.
Q4Human Neural System
Which neuroglial cells act as macrophages in the central nervous system?
Not quite — the answer is C.
Microglia are small, phagocytic glial cells that remove cellular debris and pathogens in the CNS — functioning as resident macrophages. Astrocytes provide metabolic support; oligodendrocytes form myelin in CNS.
Q5Human Neural System
Which of the following represents an inhibitory event at a synapse?
Not quite — the answer is A.
Hyperpolarisation (IPSP) makes the postsynaptic membrane more negative, moving it further from threshold and reducing the likelihood of action potential generation. Option B and C describe excitatory events.
Q6Human Neural System
Which neuroglial cell forms the myelin sheath around axons in the peripheral nervous system?
Not quite — the answer is A.
Schwann cells produce myelin sheath in PNS; oligodendrocytes perform this function in CNS. Astrocytes and microglia have structural and phagocytic roles respectively.
Q7Central Nervous System
The subarachnoid space surrounding the spinal cord contains which fluid?
Not quite — the answer is A.
The subarachnoid space between the arachnoid mater and pia mater contains CSF, providing buoyancy and cushioning for the spinal cord. This space is accessed during lumbar puncture to sample CSF.
Q8Central Nervous System
How many pairs of spinal nerves are present in the human body?
Not quite — the answer is B.
Humans have 31 pairs of spinal nerves: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. This is a direct NCERT recall frequently tested in NEET.
Q9Central Nervous System
Which of the following correctly describes the arrangement of grey and white matter in the spinal cord compared to the cerebral cortex?
Not quite — the answer is A.
In the spinal cord, grey matter is central (H-shaped) surrounded by peripheral white matter. In the cerebral cortex, grey matter forms the outermost layer over deeper white matter — a classic reversal trap tested in NEET.
Q10Central Nervous System
Which hindbrain structure is primarily responsible for maintaining posture and equilibrium?
Not quite — the answer is B.
The cerebellum maintains posture, equilibrium, and coordinates fine voluntary movements. The inferior colliculus is a midbrain structure involved in auditory reflexes — a deliberate high-difficulty distractor.
Q11Central Nervous System
A patient suffers complete destruction of the medulla oblongata. Which consequence is most immediate and life-threatening?
Not quite — the answer is C.
The medulla oblongata contains vital autonomic centres controlling respiratory rhythm and cardiovascular function. Their destruction is immediately fatal. Memory loss implicates hippocampus; voluntary movement implicates motor cortex — not medulla.
Q12Central Nervous System
Which lobe of the cerebrum contains the primary motor cortex?
Not quite — the answer is C.
The primary motor cortex resides in the frontal lobe and controls voluntary movements. The parietal lobe contains somatosensory cortex; occipital lobe handles vision; temporal lobe processes auditory information.
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Get RankUp on Google PlayQ13Central Nervous System
Which lobe of the cerebrum is primarily concerned with visual processing?
Not quite — the answer is A.
The primary visual cortex is located in the occipital lobe. This is a direct NEET recall question — frontal (motor), parietal (sensory), and temporal (auditory/olfactory) lobes serve different functions.
Q14Reflex Action and Reflex Arc
The minimum number of neurons in a monosynaptic reflex arc is
Not quite — the answer is B.
A monosynaptic reflex arc requires only two neurons: one sensory (afferent) and one motor (efferent), with a single synapse between them. Addition of an interneuron would make it polysynaptic.
Q15Reflex Action and Reflex Arc
Which neuron connects the sensory and motor neurons within the spinal cord in a polysynaptic reflex?
Not quite — the answer is D.
Interneurons (relay neurons) within the spinal cord grey matter synapse between the afferent sensory neuron and the efferent motor neuron. Commissural fibres connect the two sides of the spinal cord but are not the integrating interneuron.
Q16Reflex Action and Reflex Arc
Stimulation of Golgi tendon organs causes relaxation of the same muscle. This reflex is called
Not quite — the answer is C.
Golgi tendon organs detect excessive muscle tension and trigger the inverse stretch reflex (autogenic inhibition), causing the muscle to relax and preventing tendon damage. This is distinct from the stretch reflex, which causes contraction.
Q17Reflex Action and Reflex Arc
Which neuron forms the afferent limb of a reflex arc, carrying impulse from receptor to CNS?
Not quite — the answer is D.
The sensory (afferent) neuron carries impulses from the receptor to the spinal cord or brainstem. The motor (efferent) neuron carries impulses from the CNS to the effector; interneurons connect them within the CNS.
Q18Reflex Action and Reflex Arc
The autonomic reflex arc differs from a somatic reflex arc in that its efferent pathway contains
Not quite — the answer is B.
The autonomic efferent pathway has two neurons: a preganglionic neuron (CNS to ganglion) and a postganglionic neuron (ganglion to effector). Somatic efferent pathways have a single motor neuron from CNS to skeletal muscle.
Q19Chemoreception and Photoreception
The primary function of the Eustachian tube is to
Not quite — the answer is B.
The Eustachian tube connects the middle ear to the nasopharynx, equalising air pressure on both sides of the tympanic membrane. Unequal pressure causes the membrane to bulge, impairing vibration transmission.
Q20Chemoreception and Photoreception
Astigmatism results from unequal curvature of the cornea and is corrected using
Not quite — the answer is D.
Cylindrical lenses correct astigmatism by compensating for the unequal refractive power in different meridians of the cornea. Concave and convex lenses correct myopia and hypermetropia respectively but cannot correct meridional irregularities.
Q21Chemoreception and Photoreception
A person has normal vision in bright light but cannot distinguish red from green. Which specific deficit explains this?
Not quite — the answer is A.
Red-green colour blindness results from absence or malfunction of red-sensitive (L-cone) or green-sensitive (M-cone) iodopsin. Rod function is unaffected, so dim-light vision is normal. This is an X-linked recessive condition.
Q22Chemoreception and Photoreception
Vitreous humour is located between which two structures?
Not quite — the answer is B.
Vitreous humour fills the large posterior chamber between the lens and retina, maintaining the spherical shape of the eyeball and holding the retina in place. Aqueous humour occupies the anterior chamber.
Q23Chemoreception and Photoreception
Which of the following is INCORRECT regarding fovea centralis?
Not quite — the answer is D.
The fovea centralis contains only cones — no rods are present here. This exclusive cone concentration gives it the highest visual acuity and colour discrimination. Rods predominate in the peripheral retina.
Q24Chemoreception and Photoreception
The fluid filling the anterior chamber between the cornea and lens is
Not quite — the answer is A.
Aqueous humour fills the anterior chamber (between cornea and lens), maintains intraocular pressure, and supplies nutrients to the avascular cornea and lens. Vitreous humour fills the posterior chamber between lens and retina.
ELITE question · AIR under 50 level
This chapter has 76 ELITE questions for students aiming at the very top. They are only in the app.
Unlock ELITE questions in the appNeural system facts to remember
Quick revision: most questions in this chapter test these facts.
| Topic | Key fact |
|---|---|
| Neuron types | Multipolar (cerebral cortex); bipolar (retina); unipolar (embryonic stage) |
| Myelinated fibres | Schwann cells form the myelin sheath; gaps are nodes of Ranvier; found in spinal and cranial nerves |
| Resting potential | Na⁺/K⁺ pump moves 3 Na⁺ out for every 2 K⁺ in; axon membrane is more permeable to K⁺ at rest |
| Synapses | Electrical synapses (rare, faster) and chemical synapses (neurotransmitters cross the synaptic cleft) |
| Meninges | Dura mater (outer), arachnoid (middle), pia mater (inner) |
| Forebrain | Cerebrum (hemispheres joined by corpus callosum), thalamus, hypothalamus |
| Hypothalamus | Controls body temperature, hunger and thirst; secretes neurohormones |
| Limbic system | Amygdala, hippocampus — emotions, motivation, sexual behaviour |
| Midbrain | Corpora quadrigemina — visual and auditory reflexes |
| Hindbrain | Pons, cerebellum, medulla; medulla controls respiration, cardiovascular reflexes and gastric secretion |
| Brain stem | Midbrain + pons + medulla oblongata |
| Reflex arc | Receptor → afferent (sensory) neuron → CNS → efferent (motor) neuron → effector; knee-jerk reflex |
| Eye | Rods (rhodopsin, dim light); cones (colour, bright light); fovea has only cones; blind spot has no receptors |
| Ear | Ossicles: malleus, incus, stapes; organ of Corti in the cochlea for hearing; vestibular apparatus for balance |
What the app covers in this chapter
760 questions in total, each with a detailed explanation.
| Human Neural System | 60 |
| Central Nervous System | 100 |
| Reflex Action and Reflex Arc | 40 |
| Chemoreception and Photoreception | 63 |
| Mixed practice and chapter tests | 497 |
Questions students ask
Is Neural Control and Coordination important for NEET?
Yes. Questions come from neuron structure and types, the ionic basis of the nerve impulse, synapses, the parts of the brain and their functions, and reflex action.
Which topics should I revise first?
Start with neuron types and the resting and action potential, then the parts of the brain and their functions (use the table on this page), and finish with reflex arcs and the sense organs.
How many questions from this chapter are on RankUp?
The RankUp app has 760 questions on Neural Control and Coordination, including 76 ELITE questions written for students aiming at AIR under 50. Every question has a detailed explanation.
Can I download these questions as a PDF?
Yes. The free PDF on this page has all 24 questions with the answer key and explanations. No signup is needed.
