7.2 B pt2

Question 1

Somatic nervous system

Answer 1

effect the skeletal muscles, voluntary movement. (Under PNS)

Question 2

Autonomic nervous system

Answer 2

effect smooth muscles, involuntary movement including peristalsis (digestion), and breathing. (Under PNS)

Question 3

Sympathetic nervous system

Answer 3

-Fight or flight (under Autonomic nervous system)
-The sympathetic nervous system prepares the body to flee or fight when faced with a dangerous situation. This may include:
Dilation of pupils to clear vision
Dilation of bronchioles increasing oxygen intake
Heart rate increases, bringing more glucose and oxygen to skeletal muscle cells – faster and stronger muscle action
Digestion is slowed to conserve energy

Question 4

parasympathetic nervous system

Answer 4

-rest and digest (under Autonomic nervous system)
-Constrict pupils
Constrict bronchioles
Heart rate decreases, bringing less glucose and oxygen to skeletal muscle cells – lesser muscle action
Stimulates digestion