Most of the neurons in the cerebral cortex are:

1. Unipolar

2. Bipolar

3. Multipolar

4. Pseudo unipolar

The number of correct statements amongst the given statements is:

I. Somatic neural system relays impulses from the CNS to smooth muscles of the body.

II. Myelinated nerve fibers are found in spinal nerves but not in cranial nerves.

III. Sodium-potassium pump transports 3 sodium outwards and 2 potassium into the cell.

IV. Electrical synapses are rare in our system.

V. Efferent neurons carry signals from the CNS to the effector.

   1.  2         

   2.  3

   3.  4         

   4.  5

In the given diagram of cochlea, the tectorial membrane is represented by the letter:

            1.  A                   

            2.  B

            3.  C                 

            4.  D

Mark the incorrect match?

The 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

'Retinal' is present in:

1.  Rods

2.  Cones

3.  Both 1 and 2

4.  All the retinal layer

The resting axonal membrane of a neuron:

1. is not polarized

2. has an excess of anions on the outside

3. is more permeable to potassium ions than to sodium ions

4. cannot be excited by a stimulus

The specific receptor organ in the otolith organ of the internal ear is called:

1.  Macula

2.  Crista

3.  Cupula

4.  Organ of Corti

In cochlea, the auditory receptors are:

1. Organ of Corti

2. Ampulla

3. Macula

4. Hair cells

Consider the characteristics of a certain part of the human brain:
I. It contains neurosecretory cells.
II. It is an important part of the limbic system.
III. It is a part of the diencephalons.

This part of the human brain is:

1. Hypothalamus

2. Medulla oblongata

3. Cerebellum

4. Amygdala