Types Of Neurons And The Reflex Arc (lesson 6)

Question 1

What are the three types of neurons?

Answer 1

1) Sensory neurons
2) Motor neurons
3) Interneurons (association neurons)

Question 2

Carry impulses from eyes, nose, mouth, ears and skin to the CNS

Answer 2

sensory

Question 3

What does the motor neurons do?

Answer 3

Carry impulses from the CNS to muscles or glands

Question 4

What do the interneurons do?

Answer 4

Carry impulses between sensory and motor neuron. These are only found in brain and spinal cord

Question 5

What is white matter?

Answer 5

Has myelinated (fatty tissues) axons

Question 6

What type of matter have nerve cell bodies, dendrites and some unmyelinated axons

Answer 6

Grey matter

Question 7

What part of the brain is apart of the grey matter?

Answer 7

Cerebrum and outer layer of cortex

Question 8

What part of the brain is apart of the white matter

Answer 8

Inner surface of medulla

Question 9

What type of matter does the spinal cord have?

Answer 9

White matter outside
grey matter inside

Question 10

What do receptors pick up for organisms?

Answer 10

Pick up information about organisms internal and external environment

Question 11

Explain “The Reflex Arc”

Answer 11

When you touch something painful/hot, your body uses Reflex Arc to move affected part away.

Your body pulls the effected body part away before you feel any pain

Question 12

What are the steps in “The Reflex Arc”

Answer 12

1) Receptors
2) Sensory neurons
3) Interneurons
4) Motor neurons
5) Effectors