#11: Autonomic Nervous System

Question 1

Autonomic Nervous System (ANS)

Answer 1

branch of the peripheral nervous system

under involuntary control and works with the endocrine system to maintain homeostasis

Question 2

Sympathetic nervous system (SNS)

Answer 2

prepares the body for stress (i.e. increases heart rate and blood flow)
the nerves of the SNS originate in the thoracic and lumbar vertebrae

Question 3

Parasympathetic nervous system (PSNS)

Answer 3

restores balance after stress has been induced (i.e. decreases heart rate and blood flow)
the nerves of the PSNS originate in the brain, the cervical vertebrae and the caudal vertebrae