The Nervous System ( area 1 / 2. 8 )

Question 1

Function of nervous system?

Answer 1

1. Most living organism have some form os NS.
2. Receives info ( sensory input )
3. Process information ( integration )

Spread through entire body

Question 2

TWO types of nervous system?

Answer 2

• Central Nervous System

- Peripheral Nervous System

Question 3

What is Central Nervous System?

Answer 3

Includes brain and the spinal cord

Question 4

What is Peripheral Nervous System?

Answer 4

All other nerves ( not brain or spinal cord ) which provides info to the central system

Question 5

FEATURES of Central Nervous System?

Answer 5

• Process the info received and activate reaction.
• Both physical and metaphorically central.

Brain: mastercontrol centrem highly organised and specialised.

Spinal cord: protected by vertebrae.

Interconnect neurons - neural pathways used for communication.

Question 6

FEATURES of Peripheral Nervous System?

4 FEATURES

Answer 6

OUTISDE
-Networked nerves outside

• Connects the central nervous system to organs, skins etc
• provides info to the CNS and message other areas of the body.
• Regulates involuntary body functions ( heatbeat, breathing. )

Question 7

Damage to spinal cord?

Answer 7

No communication between body and brain.

Question 8

What is Peripheral Nervous System made up of? TWO

Answer 8

Somatic Nervous system

Autonomic Nervous system

Question 9

Features of somatic nervous system?

Answer 9

• Network of nerves that carry sensory info to and from the CNS.
• Body has sensory receptors to carry message along neural pathways. etc control muscle activity in response

Question 10

What else is somatic ns known as?

Answer 10

Skeletal nervous system

It connects skeletal muscles with CNS.

Question 11

What is somatic tend to be responsible for?

Answer 11

• Voluntary
• Conscious
• Skeletal movement

Question 12

Features of Autonomic nervous system?

Answer 12

• A network of nerves like SNS, but works with involuntary unconscious movement.
• Functions of organs such as heartbeat and perspiration.
• Fairly independent on CNS

Question 13

TWO DIVISION of Autonomic nervous system?

Answer 13

• Sympathetic nervous system

- Parasympathetic

Question 14

Function of Sympathetic nervous system?

Answer 14

Arouses the body under stressful stimuli is detected.

Question 15

Function of Parasympathetic ?

Answer 15

Calms and restores the body after.

Question 16

FEATURES of sympathetic ns?

Answer 16

• Flight, Fight, Freeze response.
• IMPORTANT for survival.
• Temporary
• Fast acting
• Designed to assist out bodies to cope with stressors.

Question 17

FEEATURES of Parasympathetic ?

Answer 17

• Designed to return the body to homeostasis after a stressor.
• Rest and Digest.
• Restores body to natural state after a stressor.

The dominant Autonomic NS.