Autonomic nervous system MCQ 7+

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• The cholinergic neurons are
  ক

  All pregnglionic neurons

  খ

  All parasympathetic postganglionic neurons

  গ

  Sympathetic post ganglionic neurons that innervate sweat glands

  ঘ

  Sympathetic post ganglionic neurons that innervate exocrine glands

  ঙ

  Sympahtetic post ganglionic neurons that innervate adrenal medulla
• The transmitter substance at
  ক

  Sympathetic postganglionic nerve ending is usually norepinephrine

  খ

  Parasympathetic ganglia is acetylcholine

  গ

  Sympathetic ganglia is dopamine

  ঘ

  Parasympathetic postganglionic nerve ending is adrenaline

  ঙ

  Parasympathetic preganglionic nerve ending is adrenaline
• Sympathetic vasoconstrictor tone decreases due to increased stimulation of
  ক

  Aortic arch baroreceptors

  খ

  Carotid sinus receptors

  গ

  Pain nerve endings

  ঘ

  Carotid body receptors

  ঙ

  Aortic body receptors
• Stimulation of the sympathetic part of the autonomic nervous system is responsible for
  ক

  Constriction of the pylorus

  খ

  Secretion of the sweat glands

  গ

  Contraction of the smooth muscles of the male genital tract

  ঘ

  Emptying of the urinary bladder

  ঙ

  Contraction of the bronchial smooth muscles
• Stimulation of vagus nerve causes
  ক

  Reduction of the strength of ventricular contraction

  খ

  Secretion and vasodilatation in the salivary gland

  গ

  Mucous secretion from bronchial mucosal ceil

  ঘ

  The gall bladder to contract

  ঙ

  The spleen to contract
• The following processes are brought about by activation of parasympathetic nerve fibers
  ক

  Defaecation

  খ

  Micturition

  গ

  Sweating

  ঘ

  Ejaculation of semen

  ঙ

  Dilatation of pupil