Check-in: The circulatory system

Learning goal 1: Identify whether the following statement is true or false. The circulatory system delivers nutrients to cells but does not transport waste products.

• True

• False

Red blood cells:

• are specialized for fighting infection

• are dissolved in the plasma

• are specialized for carrying oxygen

• contain haemoglobin

Capillaries are blood vessels specialized for:

• the exchange of nutrients and wastes between blood and body cells

• connecting veins together

• carrying blood away from the heart

• returning blood to the heart

The heart:

• has four chambers

• receives incoming blood in its top chambers, the atria

• functions as two pumps

• has two chambers

Learning goal 2: Identify whether the following statement is true or false. The heart has two major arteries. Both of these carry oxygenated blood.

• True

• False

The circulatory system interacts with the ____(a)____ system when it transports ____(b)____ from the ____(c)____ to the ____(d)____.

• (a) digestive, (b) food nutrients, (c) lungs, (d) intestines

• (a) respiratory, (b) food nutrients, (c) intestines, (d) body cells

• (a) respiratory, (b) oxygen, (c) lungs, (d) body cells

Name three things that are transported by the circulatory system.

Learning goal 2: Describe the role of the heart.

• The role of the heart is to pump blood around the body.

• The role of the heart is to digest food.

• The role of the heart is to control movement of limbs.

• The role of the heart is to produce hormones.