Differentiate between Dendrites and axons

3

(a)

Explain the role of Na⁺ in the generation of action potential.

3

(a)

Differentiate between Cerebrum and cerebellum.

3

(a)

Differentiate between Thalamus and hypothalamus

3

(a)

Answer briefly
(i) How do you perceive the colour of an object?
(ii) Which part of our body helps us in maintaining the body balance?
(iii) How does the eye regulate the amount of light that falls on the retina?

3

(a)

Explain the mechanism of generation of light-induced impulse on the retina.

3

(a)

Distinguish between cranial nerve and spinal nerve in human.

3

(a)

The major parts of the human neural system is depicted below.Fill in the empty boxes with appropriate words.

3

(a)

Answer the following:
(a) Which part of the human brain is the most developed?
(b) Which part of our central neural system acts as a master clock?

3

(a)

Give a brief description of the neural system.

3

(a)

Explain parasympathetic neural system.

3

(a)

Give a description of the structure of neuron.

3

(a)

Describe reflex action.

3

(a)

What do you understand by olfactory receptors?

3

(a)

Why don't we get the taste of food when we suffer from common cold?

3

(a)