topic 3

Question 1

Describe the Peripheral Nervous System

Answer 1

PNS is to carry messages to and from the CNS to the rest of the body

Question 2

Identify the structures of a neuron

Answer 2

1. Cell Body
2. Axon
3. Axon Terminal
4. Myelin Sheath
5. Dendrites
6. Nucleus

Question 3

the nervous system is split into two parts, what are they

Answer 3

The CNS and PNS

Question 4

What does CNS consist of?

Answer 4

The Brain and the Spinal Chord

Question 5

What is the nervous system?

Answer 5

a network of cells that allows animals to respond rapidly to their enviroment

Question 6

What is the function of the Cell Body in a neuron?

Answer 6

Houses the nucleus and maintains neuron’s health.

Question 7

What does the Axon do?

Answer 7

Carries electrical impulse from the cell body to the axon terminals.

Question 8

What is the role of the Axon Terminal?

Answer 8

Carries the impulse to the next neuron.

Question 9

What is the Myelin Sheath?

Answer 9

A fatty layer covering in the axon terminal to speed up the nerve impulse along the axon.

Question 10

What are Dendrites?

Answer 10

Branch-like structures that receive messages from other neurons.

Question 11

What is the Nucleus in a neuron?

Answer 11

Control center of the neuron, ensuring it is functioning correctly and surviving.