Q1 of 102 Page 118

Name the following:

The part of the human brain which controls body temperature.

Hypothalamus


Explanation: The hypothalamus plays an important role in regulating the body temperature. This function is carried out by the anterior hypothalamus and the posterior hypothalamus. They have directly opposite effects. Stimulation of the anterior hypothalamus begins a thermolytic response thereby resulting in a decrease in the body temperature. While stimulation of the posterior hypothalamus begins a thermogenic response that leads to an elevation in body heat.


More from this chapter

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1

Name the following:

The junction between two nerve cells.

 1

Name the following:

The part of the brain which is concerned with memory.

 2

Note the relationship between the first two words and suggest the suitable word/words for the fourth place.

(a) Stimulus : Receptor :: Impulse : .......


(b) Cerebrum : Diencephalon :: Cerebellum : ................


(c) Receptor : Sensory nerve :: Motor nerve : .............

 3

Complete the following statements by choosing the correct alternative from the choices given in brackets:

(a) The dorsal root ganglion of the spinal cord contains cell bodies (motor/sensory/intermediate) neurons.


(b) Cerebellum is the part of the brain which is responsible for


(i) conducting reflexes in the body


(ii) maintaining posture and equilibrium


(iii) controlling thinking, memory & reasoning


(c) Reflex action is controlled by


(i) brain


(ii) spinal cord


(iii) autonomic


(iv) peripheral nervous system.