Autonomic Nervous System

Question 1

Components of the peripheral nervous system

Answer 1

autonomic (involuntary) and somatic (voluntary - skeletal muscle primarily)

Question 2

components of the autonomic nervous system

Answer 2

sympathetic and parasympathetic

Question 3

divisions of autonomic nerves

Answer 3

• sympathetic: thoracolumbar (EXITS from the thoracic and lumbar regions of the spine)
• parasympathetic: craniosacral (EXITS from the cranial and sacral areas)
• *exits from means that’s where the cell bodies are

Question 4

identifying characteristics of autonomic vs. somatic nerve circuits

Answer 4

autonomic system always has at least 2 nerves with a ganglion
somatic may only have one nerve that goes to skeletal muscle

Question 5

dual innervation

Answer 5

different nerve systems go to multiple organs, but usually do NOT innervate the same cell type, which is how they cause different responses in different organs