NEET Biology Neural Control and Coordination MCQs Set 28

Biology Objective Questions and Answers: Neural Control and Coordination

Review structured MCQ sets for NEET Biology Neural Control and Coordination. Built according to official NEET guidelines, these downloadable questions support daily revision and core concept reinforcement.

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Multiple Choice Questions

Question 1: Which of the following cranial nerves can regulate heart beat?
(a) X
(b) IX
(c) VIII
(d) VII
Show Answer & Explanation

Answer: (a) X

Explanation:
1. The vagus nerve (cranial nerve X) slows the heart beat as a parasympathetic nerve.
2. Cranial nerves IX, VIII and VII do not regulate the heart.

Teacher's Note:
1. Vagus means wandering nerve.
2. It supplies heart, lungs and gut.

Question 2: Sensitive pigmented layer of eye is
(a) cornea
(b) retina
(c) sclerotic
(d) iris
Show Answer & Explanation

Answer: (b) retina

Explanation:
1. The retina is the inner, light-sensitive layer of the eye, containing the rods and cones.
2. The cornea is the transparent front, the sclera is the outer coat and the iris controls the pupil.

Teacher's Note:
1. Retina forms the image.
2. Choroid is the pigmented vascular middle layer.

Question 3: Third ventricle of brain is also known as
(a) metacoel
(b) rhinocoel
(c) paracoel
(d) diacoel
Show Answer & Explanation

Answer: (d) diacoel

Explanation:
1. The third ventricle of the brain (in the diencephalon) is also called the diocoel.
2. The first and second ventricles lie in the cerebral hemispheres.

Teacher's Note:
1. Brain cavities contain cerebrospinal fluid.
2. The fourth ventricle is the metacoel.

Question 4: Ecdysis is shedding of
(a) stratum corneum
(b) epidermis
(c) dermis
(d) stratum Malpighi
Show Answer & Explanation

Answer: (a) stratum corneum

Explanation:
1. Ecdysis (moulting) is the shedding of the outer dead layer of the epidermis, the stratum corneum.

Teacher's Note:
1. Reptile skin sheds as a whole.
2. Stratum corneum is made of dead cells.

Question 5: Vagus nerve is
(a) X
(b) IX
(c) VII
(d) V
Show Answer & Explanation

Answer: (a) X

Explanation:
1. The vagus nerve is the tenth cranial nerve (X).
2. It is a mixed nerve.

Teacher's Note:
1. Vagus is cranial nerve X.
2. Learn the cranial nerve numbers.

Question 6: Afferent nerve fibres carry impulses from
(a) effector organs to CNS NEURAL CO ter Specific
(b) receptors to CNS
(c) CNS to receptors
(d) CNS to muscles
Show Answer & Explanation

Answer: (b) receptors to CNS

Explanation:
1. Afferent (sensory) fibres carry impulses from receptors to the CNS.
2. Efferent (motor) fibres carry impulses from the CNS to the effector.

Teacher's Note:
1. Afferent means arriving at the CNS.
2. Efferent means exiting.

Question 7: Retina is most sensitive at
(a) optic disc
(b) periphery
(c) macula lutea
(d) fovea centralis
Show Answer & Explanation

Answer: (d) fovea centralis

Explanation:
1. The fovea centralis is the centre of the macula lutea and has only cones, so it has the sharpest vision.
2. The optic disc (blind spot) has no receptors.

Teacher's Note:
1. Fovea gives the most acute vision.
2. Blind spot has no photoreceptors.

Question 8: The layer of actively dividing cells of skin is termed as
(a) stratum compactum
(b) stratum corneum
(c) stratum Malpighi/stratum germinativum
(d) stratum lucidum
Show Answer & Explanation

Answer: (c) stratum Malpighi/stratum germinativum

Explanation:
1. The stratum germinativum (Malpighian layer) is the basal layer of the epidermis that keeps dividing.
2. It replaces the cells shed from the surface.

Teacher's Note:
1. The deepest layer of the epidermis divides.
2. Melanocytes are also there.

Question 9: Hair present in the skin are
(a) epidermal in origin and made of dead cells
(b) epidermal in origin and made of living cells
(c) dermal in origin and made of living cells
(d) dermal in origin and made of dead cells
Show Answer & Explanation

Answer: (a) epidermal in origin and made of dead cells

Explanation:
1. Hair arise from the epidermis and the visible hair shaft consists of dead keratinised cells.

Teacher's Note:
1. Hair are epidermal derivatives.
2. Only the root of a hair grows.

Question 10: In humans, visceral organs are innervated by
(a) sympathetic nerves and are under conscious control
(b) parasympathetic nerves and are under conscious control
(c) Both
(d) both sympathetic and parasympathetic nerves but are not under conscious control
Show Answer & Explanation

Answer: (c) Both

Explanation:
1. Visceral organs are supplied by both sympathetic and parasympathetic nerves of the autonomic nervous system.
2. This system works involuntarily, without conscious control.

Teacher's Note:
1. Autonomic means self-governing.
2. Sympathetic and parasympathetic nerves act opposite to each other.

Free study material for Biology

Neural Control and Coordination Objective Questions & Solutions for NEET Biology

Chapter MCQs with Answers for NEET Biology

Review structured objective questions for NEET Biology Neural Control and Coordination. Built according to official NEET guidelines, these MCQ sets support daily revision and core concept reinforcement.

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Each question includes structured solution keys mapped directly to standard NEET textbooks, helping students evaluate their reasoning and correct mistakes early in their revision.

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FAQs

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