Nervous System

Question 1

What is the nervous system made out of?

Answer 1

1. Central Nervous System (CNS)
2. Peripheral Nervous System (PNS)

Question 2

What is the Central Nervous System (CNS)

Answer 2

1. Brain
2. Spinal Cord

Question 3

Describe the function of the Brain & Spinal Cord within the CNS

Answer 3

Brain: Receives & processes sensory information

Spinal Cord: Conducts signals to and from the brain & controls reflex activities

Question 4

What is the simple way to remember CNS?

Answer 4

CNS = BRAIN + SPINAL CORD

Question 5

What is the Peripheral Nervous System (PNS)?

Answer 5

PNS: All nervous tissue outside CNS + ENS (Enteric)

Question 6

What is the two primary components of the PNS?

Answer 6

1. Motor Neurons
2. Sensory Neurons

Question 7

What is the two parts of the Motor Neurons?

Answer 7

1. Somatic Nervous System: Responsible for voluntary movements and sensory perception
2. Autonomic Nervous System: Regulates involuntary bodily functions

Question 8

What is the Autonomic Nervous System made out of? (ANS)

Answer 8

1. Sympathetic: ‘FIGHT OR FLIGHT’

(SHOOT)

2. Parasympathetic:
   ‘REST AND DIGEST’

(POINT)

Question 9

Define Sympathetic & Parasympathetic

Answer 9

Sympathetic: Preparing the body for action in times of stress or danger

Parasympathetic:
Facilitating activities like digestion and relaxation

Question 10

What is the function of the PNS?

Answer 10

1. Delivers sensory information to the CNS
2. Carries motor commands to peripheral tissues

Question 11

What is the role of the PNS?

Answer 11

The PNS relays these motor commands from the CNS to peripheral tissues.

Question 12

Give me 2 examples of the role of PNS!

Answer 12

1. If you decide to raise your hand, the CNS sends a command through the PNS to the arm muscles, telling them to contract.
2. If your body needs to digest food, the CNS sends a command via the autonomic division of the PNS to the stomach and intestines to activate digestion processes.