Injury to vagus nerve in humans is not likely to affect
(1) tongue movements

(2) gastrointestinal movements

(3) pancreatic secretion

(4) cardiac movements.

Which of the following nerves arises from organ of Corti?
(1) Olfactory nerve

(2) Cochlear nerve

(3) Abducens nerve

(4) None of these

If medulla oblongata is destroyed then which of the following functions wil be effected ?
(1) No thermoregulation

(2) No vision

(3) No memory

(4) No response when pricked with needle

Na⁺/K⁺ pump is associated with

1. passive transport

2. active transport

3. osmosis

4. imbibition.

Which of the following is correctly labelled?
(1) A: Reissner's membrane

(2) B:Scala vestibuli

(3) C: Basilar membrane

(4) D: Tectorial membrane

The release of chemical messenger from synaptic vesicles is under the influence of these ion(s)
(1) CI^-

(2) Fe⁺⁺ and S⁺⁺

(3) Ca⁺⁺

(4) Mg⁺⁺ and Sr⁺⁺

Which of the following is true for the function of labelled parts in the diagram below?

(1) A - Blind spot  -   Image is formed here 

(2) B - Fovea       - No visual activity is present

(3) C - Cornea      - Helps to hold lens in place

(4) D - Iris          - Visible coloured portion of eye

Given is the diagrammatic representation of the sectional view of cochlea. Select the correct option regarding it.

(a) A - Organ of corti-responsible for maintenance of balance of the body and posture.
(b) B - Scala vestibuli-filled with endolymph that ends at the round window.
(c) C - Scala tympani- terminates at the round window which opens to the middle ear.
(d) D - Basilar membrane nerve impulses are generated against it.

A small rise in the body temperature of humans is corrected by

(i) sweating
(ii) dilating the skin arteries
(iii) constricting the skin arteries
(iv) increased tension of muscles in the skin.

(1) (i) only

(2) (ii) only

(3) (i) and (ii)

(4) (iii) and (iv)

Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are

(1) type of glands

(2) pain receptors

(3) naked tactile receptors

(4) encapsulated pressure receptors.