Topic 2 - Nervous System

Question 1

What is does the central nervous system consist of

Answer 1

the brain protected by the skull and the spinal cord protected by the vertebrate

Question 2

What does the nervous system do?

Answer 2

Enables humans to react to their surroundings and coordinate their behaviour

Question 3

What does the brain do?

Answer 3

involved in the processing of sensory information and controlling homeostatic processes

Question 4

What are the 3 main types of neurones?

Answer 4

• Sensory
• Relay
• Motor

Question 5

What’s the function of sensory neurones?

Answer 5

carry information as impulses from the receptors to the CNS

Question 6

What’s the function of relay neurones?

Answer 6

Carry information from the sensory to the motor neurones

Question 7

What’s the function of motor neurones?

Answer 7

Carry instructions from the CNS to the effectors

Question 8

What do receptors do?

Answer 8

Detect stimuli (eg. Receptors in the ear detect sound)

Question 9

What do effectors do?

Answer 9

Produce a specific response to a detected stimulus ( muscles and glands are effectors, muscles respond by contracting and glands release hormones)