The Nervous System

What does the nervous system do?

Coordinates internal environment and responds to external changes
What are the differences between endocrine and nervous systems?

Endocrine-longer term (ie. child development)

Nervous-fast

Highly interrelated and MUST work together
What are the two major devisions of the nervous system?
- Peripheral nervous system (PNS)
- Central nervous system (CNS)
What makes up the peripheral nervous system?

Sensory and motor neurons
What makes up the central nervous system?

Brain and spinal cord
What are the two sub-divisions of the peripheral nervous system?

Sensory and motor
What are the two sub-divisions of the motor component of peripheral nervous system?
- Somatic-conscious
- Autonomic-involuntary
What are the 2 types of cells in nervous system?
- Neurons
- Glial
Describe neurons (what do they do?)
- Functional units
- SPECIALIZED to respond to chemical and physical stimuli, to conduct electrochemical signals, and release chemicals that regulate body processes
Describe glial (what do they do?)
- give structural support, provide nutrients and remove waste from neurons
- outnumber neurons x10

Author

karinama

63788

Card Set

The Nervous System

Description

Nervous system bio 30

Updated

2011-02-03T04:00:05Z