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51.

Transmission across the synapses is done with the help of:

A.	Neurohormones	B.	Neurohumors
C.	Both (a) & (b)	D.	None of these

52.

Synapses between motor fibres and end plates are called:

A.	Internuronal synapses	B.	Neuromuscular synapses
C.	Neurosecretory synapses	D.	None of these

53.

Motor fibres inervating skeletal muscles are:

A.	Cholinergic	B.	Adrenergic
C.	Both (a) & (b)	D.	None of these

54.

Cholinergic fibres are those which liberate at their free ends:

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

55.

Membranes at synaptic terminals of motor fibres innervating skeletal muscles are highly folded but these folds are:

A.	Absent in cardiac muscles	B.	Also present in smooth muscles
C.	Absent in both cardiac and smooth muscles	D.	Present only in cardiac muscles but absent in smooth muscles

56.

Which of these is not a neurohormone:

A.	Acetylcholine	B.	Norepinephrine
C.	Epinephrine	D.	Glycine

57.

Sympathetic postganglionic fibres except those innervating sweat glands and uterus are:

A.	Adrenergic	B.	Cholinergic
C.	Both (a) & (b)	D.	None of these

58.

Neurohormones inhibiting post-synaptic transmission are:

A.	Glycine	B.	GABA
C.	Both (a) & (b)	D.	None of these

59.

Which of these are not neurohormones:

A.	Acetylcholine, epinephrine, norepinephrine, somatostatin	B.	Dopamine, serotonin, histamine, substance-P, sympathin
C.	Thyroxine, gastrin, secretin, enterokrinin, cholecystokinin	D.	All of these

60.

Nervous inervation of heart is primarily meant for:

A.	Starting the heart beat	B.	Regulating the heart beat
C.	Releasing acetylcholine	D.	Releasing adrenaline