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51.

The heart rate of a person having 102?F temperature as compared to a person having normal temperature will be:

A.	Increased	B.	Decreased
C.	Normal	D.	First increased then decreased

52.

What will happen to our heart beat in case our body temperature is decreased:

A.	Increased	B.	Decreased
C.	First increased then decreased	D.	Nothing

53.

Why do we have techycardia during fever?

A.	Because the increase in temperature increase the heart rate	B.	Because parasympathetic system releases more sympathin
C.	Because more acetylcholine is liberated at the free nerve endings of sympathetic nerve fibres	D.	Because of some reason other than these

54.

An increase in the heart rate is termed:

A.	Bradycardia	B.	Tachycardia
C.	Tachybradycardia	D.	None of these

55.

A decrease in the rate of beating of heart is called:

A.	Bradycardia	B.	Tachycardia
C.	Bradytachycardia	D.	None of these

56.

Free nerve endings of sympathetic nervous system will release which of these substances during the condition of tachycardia in our body:

A.	Acetylcholine	B.	Adrenaline
C.	Noradrenaline	D.	None of these

57.

Which of these substances will be produced by our body in order to bring state of bradycardia:

A.	Acetylchoiline	B.	Adrenaline
C.	Both (a) & (b)	D.	None of these

58.

Which of these will be produced in the body during fever when we have tachycardia:

A.	Adrenaline	B.	Noradrenaline
C.	Both (a) & (b)	D.	None of these

59.

If a person is given an injection of noradrenaline, then his heart would show:

A.	Bradycardia	B.	Techycardia
C.	Both (a) & (b)	D.	None of these

60.

Hypoxia in our body would:

A.	Increase our heart rate	B.	Decrease our heart rate
C.	Bring first increase then decrease	D.	Not at all affect heart rate