B10

Question 1

What is homeostasis?

Answer 1

It is where the body maintains a stable internal environment

Question 2

Why we need homeostasis?

Answer 2

We need homeostasis as it regulates internal organs. This is important as the enzymes in the body can denature with any change.

Question 3

Nervous system

Answer 3

Stimulus 
Receptor 
Communication 
Effector 
Response

Question 4

What are reflexes for?

Answer 4

They help you to avoid danger or harm.

Question 5

How do reflexes work?

Answer 5

Simple reflexes such as pain withdrawal reflex we are familiar with often involve just three types of neurones:
Sensory neurones
Motor neurones
Relay neurones

Question 6

What is a Synapse?

Answer 6

A synapse is the gap between two nerve cells where an electronical impulse to a chemical reaction.

Question 7

Cerebral cortex (the brain)

Answer 7

The cerebral cortex is concerned with conscious intelligence, memory and language

Question 8

Cerebellum (the brain)

Answer 8

The cerebellum is concerned mainly with coordination, muscular activity and balance

Question 9

Medulla (the brain)

Answer 9

The medulla is concerned with unconscious activities such as, controlling the heartbeat, the movement of the gut and breathing