Organisation of The Nervous System

Question 1

What is the Nervous System?

Answer 1

1. A network of cells in the body
2. Coordinates different organs and controls bodily functions

Question 2

What is the Central Nervous System (CNS)?

Answer 2

1. Consists of the brain and spinal cord
2. Brain- decision making centre
3. Spinal Cord- passes signals between the brain and the rest of the body

Question 3

What is the Autonomic Nervous System (ANS)?

Answer 3

1. Controls the things we do without having to think about it
2. Sends signals to and from organs
3. Blinking, breathing etc

Question 4

What is the Sympathetic Nervous System (SNS)?

Answer 4

1. Activates fight or flight
2. A process of adrenaline release
3. Sweating, shaking, crying, increased BPM

Question 5

What is the Parasympathetic Nervous System (PNS)?

Answer 5

1. Activates the rest and digest response
2. Brings body back to normal state after an adrenaline release

Question 6

What happens if a part of your Nervous System is damaged?

Answer 6

1. Different areas of damage can cause different symptoms
2. Spinal cord damage- paralysis, slower reactions
3. ANS damage- struggle doing automatic things

Question 7

What are the practical applications of the nervous system?

Answer 7

1. Understanding of the system led to drug treatments
2. Also led to better treatment options

Question 8

What is a consequence of this theory?

Answer 8

1. The nervous system does not work on its own
2. It works with other systems eg digestive