The brain is responsible for

1

(a)

Thinking

(b)

balancing the body

(c)

regulating

(d)

All of the above

Which of the following statement is correct about receptors?

1

(a)

Gustatory receptors detect taste while olfactory receptors detect smell

(b)

Both gustatory and olfactory receptors detect smell

(c)

Auditory receptors detect smell and olfactory receptors detect taste

(d)

Olfactory receptors detect taste and gustatory receptors smell

Electrical impulse travels in a neuron from

1

(a)

Dendrite \(\rightarrow\) axon \(\rightarrow\) axonal end \(\rightarrow\) cell body

(b)

Cell body \(\rightarrow\) dendrite \(\rightarrow\) axon \(\rightarrow\) axonal end

(c)

Dendrite \(\rightarrow\) cell body \(\rightarrow\)  axon  \(\rightarrow\) axonal end

(d)

Axonal end \(\rightarrow\)  axon  \(\rightarrow\) cell body \(\rightarrow\)  dendrite

In a synapse, chemical signal is transmitted from

1

(a)

Dendritic end of one neuron to axonal end of another neuron

(b)

Axon to cell body of the same neuron

(c)

Cell body to axonal end of the same neuron

(d)

Axonal end of one neuron to dendritic end of another neuron

In a neuron, conversion of electrical signal to a chemical signal occurs at/in

1

(a)

Cell body

(b)

Axonal end

(c)

Dendritic end

(d)

Axon

What is a neuron?

1

(a)

Neurons are the functional units of the nervous system. They carry the information from the brain and the spinal cord to the different parts of the body and form the different parts of the body to the brain or the spinal cord.

Why is pituitary gland called master gland?

1

(a)

It is because pituitary gland controls and coordinates the secretions of all the other endocrine glands.

Name the components of neuron.

1

(a)

Dendrite, cell body, axon and nerve ending.

What are cranial nerves?

1

(a)

Nerves which originated from the brain are called cranial nerves.

What is stimulus?

1

(a)

Something that brings about a response in an organism is called stimulus.