Electrical impulse travels in a neuron from :
dendrite → axon → axon end → cell body
cell body → dendrite → axon → axon end
dendrite → cell body → axon → axon end
axon end → axon → cell body → dendrite
One of the following controls the peristaltic movements of alimentary canal. This one is :
cerebrum
cerebellum
pons
medulla
Which of the following helps in maintaining posture and balance of the human body ?
The olfactory receptors in humans are located in :
eyes
tongue
ears
nose
The gustatory receptors of our body are in one of the following organs. This organ is :
ear
skin
Which of the following cannot be considered as a receptor ?
muscle
eye
The spinal cord orginates from :
Select the odd one. Write the common features of others
Axon
Nephron
Dendron
Dendrite
Which of the following are cerebral reflexes ?
a person pulls away his hand on touching a hot object
a person spits out immediately when a fly enters his mouth while talking
a person walking bare foot lifts his foot at once on stepping on to a nail
a person's pupil contracts at once in the presence of bright light
(i) and (ii)
(ii) and (iii)
(iii) and (iv)
(ii) and (iv)
The contraction of pupil of the eye in the presence of bright light is an example of :
Voluntary reflex
Spinal reflex
Cerebral reflex
Adrenal reflex
