11.3 PNS Flashcards Preview

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Flashcards in 11.3 PNS Deck (4)
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1
Q

Somatic system (2)

A
  • associated with the voluntary control of body movements through the skeletal muscles and mediation of involuntary reflex arcs.
  • Consist of sensory receptors in the head and extremities, nerves that carry instructions from the CNS to the skeletal muscles
2
Q

Autonomic System (4)

A

Control glandular secretions and the functioning of smooth and cardiac muscles

  • not voluntary
  • contains sympathetic and parasympathetic
  • controlled by the hypothalamus and medulla
3
Q

Sympathetic nervous system

A

Activated in stressful situations
Flight to fight
release epinephrine (excitatory effect on its target muscles)

4
Q

Parasympathetic nervous system

A

Activated when the body is calm and at rest

acts to restore and conserve energy