Nervous System

Question 1

What is the Nervous System?

Answer 1

A system that controls all of the activities of the body

Question 2

What makes up the nervous system?

Answer 2

The nervous system is made up of the brain, the spinal cord, the nerves and the senses.

Question 3

Why is the nervous system important?

Answer 3

The nervous system allows you to react to stimulus, the reactions are automatic.

Question 4

What makes up the central nervous system and what does it control?

Answer 4

Made up of the brain and spinal cord and controls everything in the body.

Question 5

What does the spinal cord do in the central nervous system?

Answer 5

sends messages to the brain and is a part of the nervous system that connects the brain to the rest of the nervous system.

Question 6

What does the brain do in the central nervous system?

Answer 6

controls everything in the body made up of more than 10 billion nerves. It is divided into 3 parts and is protected by the skull.

Question 7

What are the three parts of the brain

Answer 7

• The Cerebrum
• The Cerebellum
• The Brain Stem

Question 8

What is the cerebrum and what does it control

Answer 8

Largest part of the brain. 
Controls:
•	Thinking
•	Memory
•	Speaking
•	Movement and identifies the information gathered by sense organs

Question 9

What is the cerebellum and what does it control?

Answer 9

Located below and back of Cerebrum.
controls:
• Balance
• Posture

Question 10

What is the brain stem and what does it control?

Answer 10

Connects the brain to the spinal cord.
controls:
•	Heartbeat
•	Breathing
•	Blood Pressure

Question 11

What the peripheral nervous system?

Answer 11

Carries messages between the central nervous system and the rest of the body. The senses carry messages about the outside environment to the central nervous system.

Question 12

What is the peripheral nervous system made up of?

Answer 12

Made up of nerves and the sense organs such as ear, eye, tongue, skin and nerves.

Question 13

What 2 parts make up the peripheral nervous system

Answer 13

Sensory divisions and Motor Divisions

Question 14

What does sensory division do in the peripheral nervous system?

Answer 14

• conducts impulses from receptors to central nervous system
• informs the central nervous system of the state of the body, interior and exterior
• sensory nerve fibres can be somatic (from skin, skeletal muscles or joints) or visceral (from organs within the ventral body cavity

Question 15

What does motor division do in the peripheral nervous system?

Answer 15

Conducts impulses from the central nervous system to effectors (muscles/ glands)

Question 16

What 2 parts make up the motor division

Answer 16

Somatic Nervous System and Automatic Nervous System

Question 17

What is the somatic nervous system

Answer 17

somatic nerve fibres that conduct impulses from the central nervous system to skeletal muscles

Question 18

What is the automatic nervous system and what does it control

Answer 18

conducts impulses from the central nervous system to smooth muscles, cardiac muscle and glands. The peripheral nervous system controls the body’s activities that you don’t think about. It controls activities in the small intestine, breathing and heartbeat.

Question 19

What 2 parts make up the automatic nervous system

Answer 19

Sympathetic nervous system (fight or flight) and Parasympathetic Nervous System (Rest and Digest).

Question 20

What makes up a neuron

Answer 20

cell body, dendrites, axon, Schwann cells, myelin sheath, nodes of Ranvier and the synaptic terminal