Topic 1

Question 1

Describe the function of the nervous system

Answer 1

To respond to stimuli to ensure our survival

Question 2

Explain how the nervous system helps maintain homeostasis

Answer 2

Homeostasis is how our body keeps a stable internal environment despite the external environment

Question 3

Define stimulus and response

Answer 3

A response is a reaction to a stimulus. A stimulus is something that causes a response or reaction

Question 4

What is the Structure of the Nervous System

Answer 4

Its a network of cells, called nerves. It is split into the brain, spinal cord, nerves.

Question 5

Outline the stimulus-response pathway

Answer 5

Detection: Sensory organs detect changes in the environment, such as hot temperature
Processing: These sensory signals are sent to the brain via nerves.
Response: The brain sends signals back through the nerves

Question 6

Construct a flowchart showing the response to a stimulus

Answer 6

Stimulus → Receptor → CNS / BRAIN →Response → Effector