Neural Control and Coordination NEET PYQReal NEET & AIPMT 2005–2019 questions, year-tagged, with solutions
By the RankUp team, founded by Dr. Deepak Sahu (MBBS Gold Medalist, NEET PG AIR 1731) · Updated
Every Neural Control and Coordination question from the NEET & AIPMT papers on this site (2005–2019), newest first. Each is tagged with its paper. Tap an option to check your answer and read the explanation.
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Neural Control and Coordination previous year questions
24 questions. Tap an option to check your answer.
Q1NEET 2019 · Q99
Which part of the brain is responsible for thermoregulation ?
Not quite — the answer is B.
The hypothalamus contains centres that control body temperature, hunger and thirst. The medulla controls respiration and cardiovascular reflexes, not temperature.
Q2NEET 2018 · Q142
Which of the following structures or regions is incorrectly paired with its function?
Not quite — the answer is B.
The limbic system (amygdala, hippocampus and related structures) regulates emotion, sexual behaviour and motivation, not movement; movement is coordinated by the cerebellum and motor cortex. The hypothalamus, medulla oblongata and corpus callosum are paired with their correct roles.
Q3NEET 2018 · Q169
Nissl bodies are mainly composed of
Not quite — the answer is D.
Nissl granules in the cell body and dendrites of neurons are clusters of rough endoplasmic reticulum with attached and free ribosomes, reflecting active protein synthesis. They do not contain smooth ER or DNA.
Q4NEET 2017 · Q83
Myelin sheath is produced by:
Not quite — the answer is A.
Myelin is formed by Schwann cells around axons in the peripheral nervous system and by oligodendrocytes in the central nervous system. Astrocytes support neurons but do not make myelin, and osteoclasts are bone-resorbing cells.
Q5NEET 2017 · Q115
Receptor sites for neurotransmitters are present on:
Not quite — the answer is D.
Neurotransmitters released into the synaptic cleft bind to specific receptors on the post-synaptic membrane, opening ion channels there. The synaptic vesicles and pre-synaptic axon terminal store and release the transmitter but do not carry its receptors.
Q6NEET 2017 (Gujarati paper) · Q53
Which of the following ossicles is adhered to tympanic membrane of middle ear?
Not quite — the answer is D.
The malleus is attached to the tympanic membrane, the incus links it to the stapes, and the stapes sits on the oval window of the cochlea. The utricle is part of the vestibular apparatus of the inner ear, not an ossicle.
Q7NEET 2017 (Gujarati paper) · Q94
The Pacinian corpuscle responds to rapid changes in:
Not quite — the answer is B.
Pacinian corpuscles are lamellated mechanoreceptors deep in the dermis that respond to deep pressure and vibration. Temperature is sensed by thermoreceptors, light by photoreceptors and gravity by the vestibular apparatus.
Q8NEET 2016 Phase 1 · Q104
Photosensitive compound in human eye is made up of:
Not quite — the answer is B.
Rhodopsin, the photopigment of rods (and the cone pigments), consists of the protein opsin bound to retinal, an aldehyde of vitamin A. Retinol is vitamin A alcohol, not the bound chromophore, and transducin is a G-protein in the signalling cascade.
Q9AIPMT 2015
A gymnast is able to balance his body upside down even in the total darkness because of:
Not quite — the answer is C.
The vestibular apparatus (semicircular canals and otolith organ) senses body position and movement and keeps balance without needing vision. The organ of Corti, cochlea and tectorial membrane are parts of the hearing mechanism.
Q10AIPMT 2015
Which of the following regions of the brain is incorrectly paired with its function?
Not quite — the answer is C.
The cerebellum coordinates movement, posture and balance; language comprehension is a function of the cerebral cortex. The other pairings, including corpus callosum linking the two hemispheres, are correct.
Q11AIPMT 2014
Which one of the following statements is not correct?
Not quite — the answer is B.
Retinal, the light-absorbing part of visual pigments, is an aldehyde derived from vitamin A, not vitamin C, so that statement is incorrect. The other statements about rhodopsin in rods and three photopigments in cones are true.
Q12AIPMT 2014
Injury localized to the hypothalamus would most likely disrupt:
Not quite — the answer is C.
The hypothalamus contains the centres that regulate body temperature (as well as hunger, thirst and pituitary control), so its injury would disrupt thermoregulation. Coordination during locomotion is a cerebellar function, and decision making and short-term memory depend on the cerebrum.
Q13AIPMT 2012 Prelims
The human hind brain comprises three parts, one of which is
Not quite — the answer is D.
The hindbrain consists of the pons, cerebellum and medulla oblongata. The hypothalamus is part of the forebrain (diencephalon), the corpus callosum connects the cerebral hemispheres, and the spinal cord is not part of the brain.
Q14AIPMT 2011 Prelims
When a neuron is in resting state i.e. not conducting any impulse, the axonal membrane is
Not quite — the answer is A.
At rest the axonal membrane is far more permeable to K⁺ ions than to Na⁺ ions and nearly impermeable to negatively charged proteins. With the Na⁺/K⁺ pump, this keeps the inside negative, giving the resting potential.
Q15AIPMT 2010 Mains · Q54
Select the answer with correct matching of the structure, its location and function Structure – Location – Function
Not quite — the answer is C.
The hypothalamus lies at the base of the forebrain (diencephalon) and has centres for body temperature, hunger and thirst. The Eustachian tube connects the middle ear (not internal ear) with the pharynx, the cerebellum is part of the hindbrain and controls balance, and the blind spot has no rods or cones at all.
Q16AIPMT 2010 Prelims · Q150
The nerve centres which control the body temperature and the urge for eating are contained in
Not quite — the answer is B.
The hypothalamus contains centres that control body temperature, hunger and thirst. The thalamus is mainly a relay centre for sensory signals, and the cerebellum coordinates movement and balance.
Q17AIPMT 2009 Prelims · Q98
Which part of human brain is concerned with the regulation of body temperature?
Not quite — the answer is C.
The hypothalamus contains centres that control body temperature, hunger and thirst. The cerebellum coordinates movement and balance, and the medulla controls breathing and heart rate.
Q18AIPMT 2008 Prelims · Q153
During the propagation of a nerve impulse, the action potential results from the movement of
Not quite — the answer is A.
At the stimulated site voltage-gated Na⁺ channels open and Na⁺ rushes in from the extracellular fluid, reversing the polarity and producing the action potential. K⁺ moving outward causes repolarisation afterwards, not the action potential itself.
Q19AIPMT 2007 Prelims · Q187
During the transmission of nerve impulse through a nerve fibre, the potential on the inner side of the plasma membrane has which type of electric change?
Not quite — the answer is D.
At rest the inside of the axon is negative (about -70 mV); during the action potential Na⁺ influx makes it positive, and K⁺ efflux during repolarisation returns it to negative. It does not stay positive after the impulse passes.
Q20AIPMT 2007 Prelims · Q194
Which one of the following pairs of structures distinguishes a nerve cell from other types of cells?
Not quite — the answer is D.
A neuron has a cell body (perikaryon/cyton) with Nissl granules and branched dendrites, features found only in nerve cells. Nucleus and mitochondria are present in almost all cells, so they cannot distinguish a neuron.
Q21AIPMT 2006 Prelims · Q163
Which one of the following not act as a neurotransmitter ?
Not quite — the answer is D.
Cortisone is a steroid hormone of the adrenal cortex, not a neurotransmitter. Acetylcholine, epinephrine and norepinephrine are all released at synapses.
Q22AIPMT 2005 Prelims · Q143
In a man, abducens nerve is injured. Which one of the following functions will be affected ?
Not quite — the answer is A.
The abducens (VI cranial) nerve supplies the lateral rectus muscle, which turns the eyeball outward, so eye movement is affected. The tongue is moved by the hypoglossal nerve, swallowing involves the glossopharyngeal and vagus nerves, and the neck by the accessory nerve.
Q23AIPMT 2005 Prelims · Q165
Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter :
Not quite — the answer is C.
Parkinson's disease results from the loss of dopamine-producing neurons in the substantia nigra, which regulate movement through the basal ganglia. Treatment therefore replaces dopamine (L-DOPA). Loss of acetylcholine neurons is linked mainly to Alzheimer's disease.
Q24AIPMT 2005 Prelims · Q187
Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following. Which of the cells are least likely to be replaced by new cells ?
Not quite — the answer is D.
Mature neurons are permanently out of the cell cycle (G₀) and are generally not replaced. The Malpighian layer of the skin divides all the time, liver cells can regenerate, and bone is remodelled by osteoblasts.
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