The organ of Corti is a structure present in
1. external ear
2. middle ear
3. semi-circular canal
4. cochlea
The part of internal ear responsible for hearing is
1. cochlea
2. semi-circular canal
3. utriculus
4. sacculus
Wax gland present in the ear canal is called
1. sweat gland
2. prostate gland
3. Cowper's gland
4. sebaceous gland/ceruminous gland
Human eyeball consists of three layers and it encloses
1. lens, iris, optic nerve
2. lens, aqueous humor and vitreous humor
3. cornea, lens, iris
4. cornea, lens, optic nerve
Mark the vitamin present in rhodopsin
1. vit-A
2. vit-B
3. vit-C
4. vit-D
The function of our visceral organs is controlled by
1. sympathetic and somatic neural system
2. sympathetic and parasympathetic neural system
3. central and somatic nervous system
4. None of the above
Match the following columns and select the correct option:
Column I | Column II | ||
(a) | Rods and cones | (i) | Absence of Cones photoreceptor cells |
(b) | Blind Spot | (ii) | Cones are densely packed |
(c) | Fovea | (iii) | Photoreceptor cells |
(d) | Iris | (iv) | Visible coloured portion of the eye |
Options: | (a) | (b) | (c) | (d) |
1. | (iii) | (i) | (ii) | (iv) |
2. | (ii) | (iii) | (i) | (iv) |
3. | (iii) | (iv) | (ii) | (i) |
4. | (ii) | (iv) | (iii) | (i) |
One of the examples of the action of the autonomous nervous system is:
1. Knee-jerk response
2. Pupillary reflex
3. Peristalsis of the intestines
4. Swallowing of food
In a man, the abducens nerve is injured. Which one of the following functions will be affected?
1. Swallowing
2. Movement of the eyeball
3. Movement of the neck
4. Movement of the tongue
Injury to the vagus nerve in humans is not likely to affect:
1. Gastrointestinal movements
2. Pancreatic secretion
3. Cardiac movements
4. Tongue movements