lecture 20 - nervous system

Question 1

what cells is the nervous system made up off?

Answer 1

• neurons
• neurgolia aka gilia cells - helps support and protect neurons

Question 2

what are the 2 parts of a nervous system

Answer 2

• centreal nervous systems ( CNS, spinal cord and brain)
• perhipal nervous system ( PNS, every other neuron)

Question 3

3 main functions of nervous tissue and what do they do?

Answer 3

• sesnory input
• intergration of data
• motor output

sensory neurons = sensory recptors TO spinal cord and brain
Brain = interprets nerve impluses
motor neurons = away from brain to muscle and gland ( body)

Question 4

internurons

Answer 4

• form connections
• recieve and process
• send signals to spinal cord and brain

Question 5

what are nurons

Answer 5

• conduct eclterical nerve impluses
• communication between neurons are responabile for coordating and controlling body activites

Question 6

3 parts of neurons

Answer 6

cell body
dadrites ( toward spinal cord and brain)
axon ( away from cell, myelin)

Question 7

how do nuertorns commuicate?

Answer 7

SYPANSE= a cell junction where neuron axon meets another nuron, muscle cell or gland

PRESsypanse= passing
POSTsypanse= receving