Eustachian tube connects:

1. External ear with middle ear

2. External ear with internal ear

3. Middle ear with pharynx

4. Middle ear with internal ear

Which of these sequences describes the correct path
for light rays entering the human eye?

1. sclera, retina, choroid, lens, cornea

2. fovea centralis, pupil, aqueous humor, lens

3. cornea, pupil, lens, vitreous humor, retina

4. cornea, fovea centralis, lens, choroid, rods

Parts A, B, C and D of the human eye are shown in the diagram. Select the option which gives correct identification along with its functions/characteristics 

1. B - Blind spots - has only a few rods and cones.

2. C- Aqueous chamber - reflects the light which does not pass through the lens.

3. D- Choroid - its anterior part forms ciliary body.

4. A - retina - contains photo receptors - rods and cones.

In which of the following part of the brain, the nerve impulses of sound are analyzed?

1. Visual cortex area

2. Olfactory cortex area

3. Auditory cortex area

4. Tactile cortex area

Vestibular apparatus is composed of:

I. Semi-circular canals
II. Otolith organs
III. Organ of Corti
IV. Crista and macula

1. I, II, III & IV 

2. I, II only

3. IV only 

4. II only

Which of the following is the incorrect difference between rods and cones?

The transduction of sound waves to action potentials takes place:

1. Within the tectorial membrane as it is stimulated by the hair cells.

2. When hair cells are bent against the tectorial membrane causing them to depolarize and release neurotransmitter molecule that stimulates sensory neurons.

3. As the basilar membrane becomes more permeable to sodium ions and depolarizes, initiating an action potential in sensory neurons.

4. Within the middle ear as the vibration is amplified by the malleus, incus, and stapes.

For the given diagram which labeling and function is
correctly matched/described?

1. (a) $\to$ Fovea $\to$ Rods are densely packed.
2. (b) $\to$ Blindspot $\to$ No image formed.
3. (c) $\to$ Choroid $\to$ Coloured part of the eye which regulates diameter of pupil.
4. (d) $\to$ Ciliary body $\to$ No role in accommodation

Which of the following is not a part of the autonomic neural system?
1. Brain
2. Spinal cord
3. Ganglion
4. Skeletal Muscle

The ___________ integrates information received from the semicircular canals of the ear and the auditory system.
1. Cerebrum.
2. Cerebellum.
3. Medulla oblongata.
4. Thalamus.