Chapter 10 - Principles Of Homeostasis

Question 1

Name one internal condition that is controlled by homeostasis.

Answer 1

One from: body temperature, water content, blood glucose concentration.

Question 2

Name two types of effector in the body.

Answer 2

Muscles and glands.

Question 3

Which stimuli are detected by the skin?

Answer 3

Temperature, touch, pain.

Question 4

How do impulses pass from a receptor to the CNS?

Answer 4

Along the sensory neurone.

Question 5

What is the function of the relay neurone?

Answer 5

To act as a coordinator, linking the sensory and motor neurones

Question 6

Name a type of effector.

Answer 6

Muscle or gland.

Question 7

Which region of the brain is mainly concerned with movement?

Answer 7

The cerebellum.

Question 8

What type of scanner can be used to monitor brain activity?

Answer 8

Magnetic resonance imaging (MRI)

Question 9

What is the function of the iris?

Answer 9

To control the size of the pupil.

Question 10

What is accommodation?

Answer 10

The process of changing the shape of the lens to focus on near or distant objects.

Question 11

What type of lens is used to correct

a) Myopia
b) Hyperopia?

Answer 11

a) Concave

b) Convex