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4

The largest number of cell bodies of] neurons in our body is found in

A. white matter of spinal cord

B. white matter of brain

C. grey matter of brain

D. grey matter of spinal cord

Correct Answer :

C. grey matter of brain


Related Questions

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4

Body temperature, hunger and water balance is regulated by

A. hypothalamus

B. medulla oblongata

C. pons

D. cerebellum

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4

In mammals the function of sympathetic nervous system is

A. contraction of hair muscles

B. contraction of pupil

C. stimulation of sweat glands

D. acceleration of heart beats

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4

Sensory nerve fibres enter the spinal cord through

A. dorsal root

B. ventral root

C. cranial nerves

D. central canal

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4

Mammalian heart is innervated by a branch of

A. trigeminal

B. facial

C. vagus

D. spinal accessory

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4

The energy required for the transmission of impulse is obtained from

A. stimulating agent

B. brain

C. nerve fibre

D. synapses

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4

Functionally the parasympathetic system is

A. inhibitory

B. stimulatory

C. both (a) and (b)

D. at times inhibitory and at times stimulatory

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4

The chemical transmitter of nerve impulses is

A. cholinesterase

B. acetyl CoA

C. acetylcholine

D. adrenaline

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4

The second cranial nerve is

A. optic

B. trigeminal

C. olfactory

D. abducen

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4

Stimulation of sympathetic nerve of heart accelerates the heart beats as a result of

A. release of acetylcholin

B. release of adrenalin

C. release of heparin

D. inhibition of cholinesterase

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4

Which one of the following are purely motor nerves?

A. Olfactory, trochlear, abducens

B. Trigeminal, facial, auditory

C. Vagus, facial, abducens

D. Abducens, trochlear, oculomotor

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4

In frog purely sensory nerves are

A. I and II

B. II and III

C. I and III

D. III and IV

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4

Foramen of Monro is

A. gap in pelvic girdle of rabbit

B. foramen in the skull of frog

C. space in brain of frog and rabbit

D. pore in the interauricular septum in a mammalian heart

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4

Spinal cord is a part of

A. CNS

B. SA node

C. AV node.

D. Parasympathetic nervous system

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4

Nerve impulse is

A. carried by afferent and efferent branches

B. not carried by afferent and efferent branches

C. carried away and brought by efferent branches

D. brought by afferent and carried by efferent branches

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4

The autonomic nervous system controls

A. muscle contractions

B. reflex movement and equilibrium

C. activity of visceral organs

D. both (a) and (b)

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Spinal cord is protected by

A. aorta

B. sternum

C. trachea

D. vertebral column

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4

Which one is not at reflex action ?

A. Obeying an order

B. Release of saliva seeing sweets

C. Perspiration due to heat

D. Closing of eyelids against fricking

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4

Cerebral cortex has centres of

A. thinking and intelligence

B. memory and learning

C. speech articulation

D. all of these

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4

The brain is situated in a long case called the

A. cranium

B. atrium

C. sinus

D. both (a) and (b)

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4

Arborvitae includes

A. grey matter

B. white matter

C. both (a) and (b)

D. none of these

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4

Which one of the animals has a nervous system but no brain?

A. Amoeba

B. Earthworm

C. Cockroach

D. Hydra

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4

The largest number of cell bodies of] neurons in our body is found in

A. white matter of spinal cord

B. white matter of brain

C. grey matter of brain

D. grey matter of spinal cord

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4

Purely motor nerve is

A. optic

B. abducens

C. ophthalmic

D. palatinus

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4

Balance of muscle coordination is the function of

A. cerebellum

B. medulla

C. pons

D. diencephalon

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4

The nodes of Ranvier are responsible for]

A. saltatory conduction

B. speed of conduction

C. reflex actions

D. direction of propagation of impulses

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4

Birds can move swiftly and accurately in three dimensions of space due to well developed

A. cerebrum

B. cerebellum

C. pons varolii

D. medulla oblongata

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4

The smallest cranial nerve is

A. optic

B. olfactory

C. auditory

D. abducens

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4

White matter consists of

A. nerve fibres with myelinated sheath

B. nerve fibres without myelinated sheath

C. scattered areolar tissue

D. nerve fibres with blood vessels.

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4

The anterior choroid plexus is situated in the roof of

A. diocoel (III Ventride)

B. metacoel (IV Ventride)

C. olfactocoel

D. optocoel

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In mammals, the cerebral hemispheres are joined by

A. foramen magnum

B. corpus callosum

C. corpus spongiosum

D. corpora quadrigemina