Lecture 2

Question 1

Break down of nervous system

Answer 1

Question 2

Types of Neurons in the Somatic NS

Answer 2

• Sensory neurons carry signals from the outer parts of your body (periphery) into the central nervous system.
• Motor neurons carry signals from the central nervous system to the outer parts (muscles, skin, glands) of your body.
• Interneurons connect various neurons within the brain and spinal cord.

Question 3

Somatic nervous system made up of what nerves

Answer 3

Spinal nerves: They are mixed nerves that carry
sensory information into and motor commands out of the spinal cord. (afferent takes info in, efferent takes info out)

Cranial nerves: They are the nerve fibers that carry information into and out of the brain stem.

Question 4

CNS vs PNS

Answer 4

Question 5

Autonomic makes up what NS

Answer 5

Sympathetic NS and parasympathetic NS

Question 6

Sympathetic Division

Answer 6

“fight, flight, freeze, fawn”

–Controls functions that accompany arousal and expenditure of energy
–Coordinates responses to a stressor
–Aka Thoracolumbar System