Nervous System: 13.1

Question 1

What is a Central Nervous System?

Answer 1

Everything in the nervous system and brain and spinal cord.

Question 2

What is a Peripheral Nervous System?

Answer 2

Everything in the nervous system except brain and spinal cord.

Question 3

What is the purpose of the dendrite?

Answer 3

To receive information.

Question 4

What is the purpose of the cell body?

Answer 4

The skeleton of a cell.

Question 5

What is the purpose of the Axon?

Answer 5

They bring nerve impulses away from the body.

Question 6

What is the purpose of the Myelin Sheath?

Answer 6

The insulated covering for an axon.

Question 7

What is the nodes of Ranvier?

Answer 7

The space between axons.

Question 8

What is the purpose of Schwann cells?

Answer 8

To produce the myelin.

Question 9

What is the purpose of Neurilemma?

Answer 9

They surround the axon.

Question 10

Which structure allows neurons to regenerate?

Answer 10

Neurilemma

Question 11

What is the neuron?

Answer 11

The basic unit of the nervous system.

Question 12

What are the 5 elements in the Reflex Arc?

Answer 12

1. Sensory receptor
2. Sensory neuron
3. Interneuron
4. Motor neuron
5. Effector

Question 13

What is the purpose of the Sensory Receptor?

Answer 13

To receive information.

Question 14

What is the purpose of the sensory neuron?

Answer 14

They keep info given by the sensory neuron.

Question 15

What is the purpose of the Interneuron?

Answer 15

They understand the sensory info and bring the info to the motor neuron.

Question 16

What is the purpose of the Motor neuron?

Answer 16

They give the info to the effectors.