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What is the correct answer?

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Which of the cranial nerve is mixed :

A. Optic

B. Olfactory

C. Vagus

D. Trochlear

Correct Answer :

C. Vagus


Related Questions

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The synaptic knots are present at the terminal endings of

A. the neuron

B. the dendron

C. the axon

D. both (b) and (c)

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

A. Amoeba

B. Earthworm

C. Cockroach

D. Hydra

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The outermost layer of brain is

A. pia mater

B. dura mater

C. arachnoid

D. none of these

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Arborvitae includes

A. grey matter

B. white matter

C. both (a) and (b)

D. none of these

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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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The largest cranial nerve is

A. optic

B. facial

C. vagus

D. mandibular

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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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Sensory nerve fibres enter the spinal cord through

A. dorsal root

B. ventral root

C. cranial nerves

D. central canal

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The SNS works through

A. acetylcholine

B. norepinephrine

C. noradrenaline

D. none of these

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Balance of muscle coordination is the function of

A. cerebellum

B. medulla

C. pons

D. diencephalon

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Synaptic fatigue is due to

A. release of more adrenalin

B. release of more acetylcholine

C. exhaustion of neurotransmitter

D. none of these

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Which of the following tissues in a human being uses the greatest amount of energy per unit weight ?

A. Heart tissue

B. Nervous tissue

C. Muscle tissue

D. Epithelial tissue

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Cranial and spinal nerves constitute

A. CNS

B. autonomic nervous system

C. peripheral nervous system

D. sympathetic nervous system

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Foramen of Monro provides a passage connecting

A. brain and spinal cord

B. lateral ventricles with III ventride in brain

C. IV ventricle with optic ventride

D. middle ear with pharynx

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Spinal cord is protected by

A. aorta

B. sternum

C. trachea

D. vertebral column

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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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Mammalian heart is innervated by a branch of

A. trigeminal

B. facial

C. vagus

D. spinal accessory

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Voluntary control over skeletal muscles originates in the

A. cerebellum

B. cerebrum

C. medulla oblongata

D. none of these

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The number of spinal nerves in man is

A. 20 pairs

B. 31 pairs

C. 21 pairs

D. 35 pairs

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The thermoregulatory centre of the body is

A. spinal cord

B. hypothalamus

C. cerebellum

D. pituitary gland

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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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An afferent neuron is

A. motor

B. sensory

C. both (a) and (b)

D. none of these

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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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In mammals, the cerebral hemispheres are joined by

A. foramen magnum

B. corpus callosum

C. corpus spongiosum

D. corpora quadrigemina

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Body temperature, hunger and water balance is regulated by

A. hypothalamus

B. medulla oblongata

C. pons

D. cerebellum

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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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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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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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Which of the cranial nerve is mixed :

A. Optic

B. Olfactory

C. Vagus

D. Trochlear