L2 - Neurons

Question 1

Describe cell body

Answer 1

Control centre of the neuron

Question 2

Describe dendrites

Answer 2

Receive action potential from other neurons or sensory receptors

Question 3

Describe axon

Answer 3

Carries action potential to axon terminal

Question 4

What do sensory neurons do

Answer 4

Convert info from sensory receptors into an action potential and transmits to CNS

Question 5

Some sensory impulses terminate where

Answer 5

Spinal cord for reflexes without delay as don’t have to send to brain

Question 6

What happens when action potentials from sensory neurons reach the brain

Answer 6

Somatosensory cortex converts to sensations and localises them to body parts

Question 7

Describe motor neurons

Answer 7

Located in CNS but project axons outside of CNS and connect to effectors

Question 8

What are effectors

Answer 8

Glands and muscles

Question 9

What do motor neurons do

Answer 9

Send action potentials from CNS to effectors so they can respond appropriately

Question 10

Describe relay neuron

Answer 10

In brain and spinal cord and connect sensory to motor and are

Question 11

Describe the role of relay neurons

Answer 11

Analyse sensation from sensory neuron and decide how to respond without waiting for brain to receive