Neural Control And Coordination — DPP 1

20 NEET questions from Neural Control And Coordination, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
A synapse is formed by
  1. A Pre-synaptic membrane
  2. B Post-synaptic membrane
  3. C Synaptic cleft
  4. D All of these
Show answer & explanation

Correct answer: D

A synapse is comprised of
(A) Pre-synaptic membrane
(B) Synaptic cleft
(C) Post-synaptic membrane
Neural Control And Coordination – NEET-8623
2
The association areas are not responsible for
  1. A Intersensory associations
  2. B Communication
  3. C Regulation of sexual behaviour
  4. D Memory
Show answer & explanation

Correct answer: C

Limbic system is responsible for the regulation of sexual behaviour. Association areas regulate intersensory association, communication and memory.
3
Eye lens is held in the place by
  1. A Muscle fibres of iris
  2. B Ligaments attached to the ciliary body
  3. C A transparent gel called vitreous humor
  4. D Thin watery fluid called aqueous humor
Show answer & explanation

Correct answer: B

Eye lens are held in position by the suspensory ligaments which are attached to the ciliary body.
4
In a resting neuron, the axonal membrane is
  1. A Nearly impermeable to potassium ions $\left( \mathrm { K } ^ { + } \right)$
  2. B Impermeable to positively charged proteins present in the axoplasm.
  3. C Comparatively more permeable to $\mathrm { K } ^ { + }$
  4. D Completely permeable to sodium ions
Show answer & explanation

Correct answer: C

At resting state, axonal membrane is more permeable to $\mathrm{K}^{+}$ions due to opening of $\mathrm{K}^{+}$leaky channels
5
Which of the following is/are controlled by the human brain?
a. Balance of the body
b. Circadian rhythm of the body
c. Human behaviour
d. Functioning of heart and kidneys
  1. A Only d
  2. B a and d
  3. C a, b and c
  4. D a, b, c, d
Show answer & explanation

Correct answer: D

Neural Control And Coordination – NEET-8638
6
Action potential is also termed as
  1. A Nerve impulse
  2. B Reflex action
  3. C Repolarisation
  4. D Polarisation
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Correct answer: A

The transmission of a nerve impulse called an action potential.
7
Which of the following meninges is in contact with the brain tissue?
  1. A Duramater
  2. B Arachnoid
  3. C Piamater
  4. D No meninx is in contact with the brain tissue
Show answer & explanation

Correct answer: C

Dura mater - Outermost layer of meninx
Pia mater - Innermost layer of meninx which is in contact with the brain tissue
8
Which of the following organ systems jointly coordinate and integrate all the activities of the body organs?
  1. A Neural system and sensory system
  2. B Digestive system and respiratory system
  3. C Neural system and endocrine system
  4. D Circulatory system and respiratory system
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Correct answer: C

Neural system and endocrine system are the two systems that help in coordination and integration of the activities of the body organs
9
Select the correct statement.Answer (3)
  1. A The PNS is the site of information processing and control
  2. B All the nerves of the body associated with the PNS comprise the CNS
  3. C The autonomic neural system relays impulses from the CNS to the involuntary organs of the body.
  4. D The CNS is divided into two divisions called sympathetic neural system and parasympathetic neural system
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Correct answer: C

CNS is the site of information processing centre
CNS and PNS, collectively constitutes the nervous system
The autonomic nervous system can be classified into sympathetic and parasympathetic nervous system
10
All of the following are parts of forebrain, except
  1. A Cerebellum
  2. B Corpus callosum
  3. C Association areas
  4. D Hypothalamus
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Correct answer: A

Cerebellum is the part of the hind brain, while corpus callosum, association areas and hypothalamus are part of forebrain
11
Multipolar neurons are found in
  1. A Porifera
  2. B Hydra
  3. C Choroid of human eye
  4. D Cerebral cortex of human
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Correct answer: D

Multipolar neurons-cerebral cortex
12
The order of three layers of cells in the retina from inside to outside is
  1. A Bipolar cells → Ganglion cells → Photoreceptor cells
  2. B Photoreceptor cells → Ganglion cells $\rightarrow$ Bipolar cells
  3. C Ganglion cells → Bipolar cells $\rightarrow$ Photoreceptor cells
  4. D Photoreceptor cells → Bipolar cells $\rightarrow$ Ganglion cells
Show answer & explanation

Correct answer: C

Neural Control And Coordination – NEET-8667
13
The somatic neural system relays impulses
  1. A From CNS to involuntary organs
  2. B From CNS to skeletal muscles
  3. C From PNS to smooth muscles
  4. D From PNS to voluntary organs
Show answer & explanation

Correct answer: B

Somatic neural system : CNS to voluntary muscles (skeletal)
Autonomic neural system : CNS to involuntary muscles
14
The canal passing through the midbrain is called
  1. A Medulla oblongata
  2. B Cerebral aqueduct
  3. C Eustachian tube
  4. D Aqueous chamber
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Correct answer: B

There is no ventricle in the midbrain, instead a passage is present which connects III ${ }^{\text {rd }}$ ventricle to the IV ${ }^{\text {th }}$ ventricle and is known as cerebral aqueduct or iter.
15
The limbic system is formed by
  1. A The hypothalamus, epithalamus, amygdala and hippocampus
  2. B Hypothalamus, amygdala and hippocampus
  3. C Corpora quadrigemina and hippocampus
  4. D Midbrain and hindbrain
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Correct answer: B

Limbic system is comprised of hypothalamus, amygdala and hippocampus.
16
The part of human brain located between thalamus/ hypothalamus and pons is
  1. A Forebrain
  2. B Midbrain
  3. C Hindbrain
  4. D Vestibular apparatus
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Correct answer: B

Midbrain is located between thalamus of forebrain and pons of hindbrain.
17
On application of a stimulus on the axonal membrane,
  1. A There is a rapid influx of $\mathrm{K}^{+}$at that site
  2. B There is a rapid efflux of $\mathrm{Na}^{+}$at that site
  3. C There is a rapid influx of $\mathrm{Na}^{+}$at that site
  4. D There is a rapid efflux of $\mathrm{K}^{+}$at that site
Show answer & explanation

Correct answer: C

On application of a stimulus on the axonal membrane, there is rapid influx of $\mathrm{Na}^{+}$ions from outside due to opening of $\mathrm{Na}^{+}$voltage gated channels.
18
The autonomic neural system is a division of
  1. A Sympathetic neural system
  2. B Central neural system
  3. C Peripheral neural system
  4. D Somatic neural system
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Correct answer: C

Neural Control And Coordination – NEET-8573

19
In which of the following part of brain, the nerve impulses of sound are analysed?
  1. A Visual cortex area
  2. B Olfactory cortex area
  3. C Auditory cortex area
  4. D Tactile cortex area
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Correct answer: C

The auditory signals are analysed in the auditory cortex area present inside the temporal lobe.
20
The Nissl's granules are present in a. Cell body b. Axon c. Dendrites d. Glial cells
  1. A a only
  2. B a, b and c
  3. C a and c
  4. D a, b, c and d
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Correct answer: C

Nissle’s granules are found in the cyton as well as the dendrites but are absent in axon.

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