The Nervous System

Question 1

What is the CNS

what does it stand for and what is it in vertebrates

Answer 1

• Central Nervous System
• in vertebrates (animals with backbones) the brain and the spinal cord only.
• In mammals, the CNS is connected to the body by sensory neurons and motor neuroses

Question 2

What are Sensory neurones

Answer 2

Carry information as electrical impulses from the receptors to the CNS

Question 3

What are motor neurones

Answer 3

Carry impulses from the CNS to effectors

Question 4

What are effectors

Answer 4

Your muscles and glands which respond to nervous impulses

Question 5

What are receptors

Answer 5

Cells that detect stimuli

Question 6

What is the CNS

Recieves what and from where

Answer 6

Receives information from the receptors and then coordinates a response.

Question 7

Pathway for Stimuli

Answer 7

Stimuli—> Receptors—>Sensory Neurone—>CNS—>motor neurone—>effector—> response

Question 8

What is the function of the nervous system

Answer 8

It allows the body to react to surroundings and coordinate an appropriate response

Question 9

How does a stimulus lead to a response being carried out by the body

Answer 9

• The stimulus is converted into an electrical impulse by the receptors
• The electrical impulse passes along sensory neurones to the CNS
• The CNS coordinates an appropriate response and an electrical impulse is sent along the motor neurones to the effector,which carries out the response

Question 10

What sequence of events describes how the nervous system works?

Answer 10

Stimulus—>Receptor—>Coorindator—>effector—> response