The Central Nervous System

Question 1

What is the central nervous system?

Answer 1

• includes the brain and the spinal cord
• information is transmitted from sensory neurons
• actions are sent from the central nervous system to motor neurons

Question 2

What are Schwann cells?

Answer 2

• TYPE OF GLIAL that make up the Mylin sheets that wrap around axons of many types of neurons

Question 3

White vs. gray matter:

Answer 3

White matter:
• lighter coloured
• made up of neurons that are myelinated

Grey matter:
• darker part
• made up of unmyelinated neurons