Autonomic Nervous System

In which of the following situations, would sympathetic arm of ANS be predominant?

• Attending an 8 am lecture

• Sitting for a Physiology exam

• Eating KFC for lunch

• Jogging around campus

Tags

NGSS.HS-LS1-3

Which effect will be observed following the administration of nicotinic cholinergic antagonist?

• Only sympathetic effects are inhibited.

• Only parasympathetic effects are inhibited.

• Both sympathetic and parasympathetic effects are inhibited.

• Both sympathetic and parasympathetic effects are unaffected.

Which neurotransmitter is released by the sympathetic postganglionic nerve?

• Acetylcholine

• Epinephrine

• Norepinephrine

• Dopamine

Which of the following is the effect of sympathetic activation in a target organ?

• Dilation of the blood vessels in skeletal muscle

• Decreased heart rate

• Increased gastrointestinal secretions

• Contraction of the bladder wall

Tags

NGSS.HS-LS1-3

Which of the following is the effect seen during a restful activity?

• Dilation of the pupil

• Decreased secretion of the sublingual gland

• Increased secretion of the parotid gland

• Increased secretion of sweat glands

Tags

NGSS.HS-LS1-3

Norepinephrine is primarily associated with the:

• autonomic nervous system

• parasympathetic nervous system

• central nervous system

• sympathetic nervous system

Alpha receptors are primarily associated with:

• The airways

• Smooth vascular muscle

• The heart and lungs

• The lungs

TRUE or FALSE: Alpha 1 agonists cause release of norepinephrine, which leads to vasoconstriction

• True

• False

Alpha 1 antagonists inhibit the release of _________, leading to _________

• norepinephrine; vasodilation

• acetylcholine; increased heart rate

• norepinephrine; vasoconstriction

• norepinephrine; bronchodilation

Beta 1 agonists cause _______ while beta 2 agonists cause _______.

• inhibition of cardiac stimulation; smooth muscle relaxation of the airways

• cardiac stimulation; bronchoconstriction

• cardiac stimulation; smooth muscle relaxation of the airways

• smooth muscle relaxation of the airways; bronchoconstriction