Autonomic Nervous System

Question 1

Somatic

Answer 1

conscious

skeletal muscle fibers; skin; proprioceptors

acetylcholine

moves skeletal muscle fibers; excitation only

Question 2

Autonomic

Answer 2

unconscious

organs

Sympathetic- epinephrin, norepinephrine, acetylcholine

Parasympathetic- acetylcholine only

Question 3

Heart

Answer 3

Sympathetic- increases rate and force of contraction

Parasympathetic- decreases rate of contraction

Question 4

Bronchioles (airway passages of the lungs)

Answer 4

S- bronchodilation

P- bronchoconstriction

Question 5

blood vessels to abdominal organs and skin

Answer 5

S- vasoconstriction (alpha receptors)

P- none

Question 6

blood vessels to skeletal muscle

Answer 6

S- vasodilation (beta receptors)

P- none

Question 7

digestive and urinary functions

Answer 7

S- inhibits

P- stimulates

Question 8

metabolic rate

Answer 8

S- ???

P- decreases (indirect effect only)

Question 9

pupils

Answer 9

S- dilation

P- constriction