2. Autonomic Nervous System

Question 1

What are the two major divisions of the ANS?

Answer 1

1. Sympathetic
2. Parasympathetic

Question 2

What is the basic action of the Sympathetic Division of ANS?

Answer 2

-Fight or flight (or freeze)
-Catabolic

Question 3

What is the basic action of the Parasympathetic Division?

Answer 3

-Rest and Digest (feed and breed)
-Homeostatic

Question 4

Define Catabolic

Answer 4

Encourages the expenditure of energy

Question 5

Define Homeostatic

Answer 5

Encourages the maintenance of normal processes

Question 6

Location of the Sympathetic Division

Answer 6

Thoracic & Lumbar Spinal Cord

Question 7

Location of the Parasympathetic Division

Answer 7

Brainstem and Sacral Spinal Cord
(mostly comes from vagus nerve)

Question 8

Sympathetic Division:
Length and Location of PRE/POSTganglionic fibers

Answer 8

-originate in thoracic & lumbar spinal cord
-pre: short fibers
-post: long fibers
-ganglia are close to spinal cord

Question 9

Parasympathetic Division:
Length and Location of PRE/POSTganglionic fibers

Answer 9

-originate in brain stem/sacral spinal cord
-pre: long
-post: short
-ganglia are within or near visceral effector organs