In reflex action, the reflex arc is formed by

(a)

brain, spinal cord, muscle

(b)

receptor, muscle, spinal cord

(c)

muscle, receptor, brain

(d)

receptor, spinal cord, muscle

Dendrites transmit impulse ______ cell body and axon transmit impulse ______ cell body.

(a)

away from, away from

(b)

towards, away from

(c)

towards, towards

(d)

away from, towards

There are ________ pairs of cranial nerves and _______ pairs of spinal nerves.

(a)

12, 31

(b)

31, 12

(c)

12, 13

(d)

12, 21

Node of Ranvier is found in

(a)

muscles

(b)

axons

(c)

dendrites

(d)

cyton

Vomiting centre is located in

(a)

medulla oblongata

(b)

stomach

(c)

cerebrum

(d)

hypothalamus

Sneezing, yawning etc are examples of _______

(a)

voluntary actions

(b)

involuntary actions

(c)

reflex actions

(d)

planned actions

The _____ is the second largest part of the brain.

(a)

cerebrum

(b)

medulla

(c)

cerebellum

(d)

pons

The cytoplasm has granular body called _______

(a)

nissl's granules

(b)

nerve fibres

(c)

glial cells

(d)

nerve cells

Neurons do not have the ability to _____

(a)

multiply

(b)

divide

(c)

regenerate

(d)

receive

Each neuron can transmit ______ nerve impulses per second.

(a)

10

(b)

1000

(c)

10,000

(d)

1,00,000