Which of the following is impermeable to water?

• Vertical limb of loop of Henle

• Descending limb of loop of Henle

• Ascending limb of loop of Henle

• Both 'a' and 'b'

Ducts of Bellini are present in :

• liver

• kidney

• intestine

• medulla oblongata

Human brain has greater development of

• cerebrum

• cerebellum

• optic lobes

• medulla oblongata

The 'end organs of Ruffini' are receptors of :

• heat

• cold

• pressure

• touch

Which of the following part of human brain is associated with integration of sympathetic and parasympathetic activities ?

• Cerebrum

• Neopallium

• Hypothalamus

• Medulla oblongata

The unidirectional transmission of a nerve impulse through nerve fibre is due to :

• neurotransmitters are released by axon endings

• neurotransmitters which are released by dendrites

• nerve fibre which is insulated by a medullary sheath

• sodium pump which starts operating into the nerve fibre

The Largest quantity of air that can be expired, after maximal inspiration, is called :

• tidal volume

• vital capacity

• residual volume

• total lung volume

48.

In the myopia eye defect, the rays of light :

• do not enter the eye at all

• meet at a focus in front of the retina

• come to a focus at back of retina

• come to a focus in between retina and iris

Sensory receptor of warmth located principally at the tip of fingers is known as :

• Weber's organ

• organ of Giraldes

• Ruffini's corpuscles

• organ of Zuckerkandl

Hormones secreted by pancreas are:

• ACTH

• oxytocin

• LH and FSH

• insulin and glucagon