Circulatory system

Circulatory system

Grade 7 -Review

The circulatory System

is a network consisting of blood, blood vessels, and the heart.

Multiple Select

What are the functions of your circulatory system?

• Carries oxygen, nutrients.

• transports hormones to the cell.

• help the body to eliminate liquid waste called urea.

• removes waste products, like

  carbon dioxide.

Functions of Circulatory System

• carries oxygen, nutrients, and

  hormones to cells.

• removes waste products, like

  carbon dioxide.

Multiple Select

Which statement/s do/don't describe about the heart?

• The heart is a muscular organ.

• located just behind and slightly right of the breastbone.

• located just behind and slightly left of the breastbone.

• The size is about the size of the fist.

The Heart

• The heart is a muscular organ.

• about the size of a fist, located

  just behind and slightly left of

  the breastbone.

Multiple Choice

The heart has __ chambers

• 2

• 4

• 6

• 8

Open Ended

Enumerate the 4 chambers of the heart.

Multiple Choice

This contains valves, which only let the blood flow one way- towards the heart.

• Veins

• Capillaries

• Arteries

Multiple Choice

Connect the arteries to the veins. They carry blood close to very tissue in the body.

• Arteries

• Veins

• Capillaries

Multiple Choice

carries blood away from the heart.

• Arteries

• Veins

• Capillaries

Open Ended

What are the components of your blood? enumerate 4 of them.

Components of your blood

• Red blood cells (RBC)

• White blood cells ( WBC)

• Plasma

• Platelet

Multiple Choice

These are little fragments of cell. it helps blood vessel when it gets damaged, helps the blood clot and seal the wound.

• Plasma

• White blood cell

• Red blood cell

• Platelets

Multiple Choice

Larger than red blood cells, they always have nucleus.

• White blood cells

• Red blood cells

• Plasma

• Platelets

Multiple Choice

it is the liquid part of blood. it is mostly water.

• Platelets

• Plasma

• RBC

• WBC

Multiple Choice

The are red pigment in the blood is called,

• Red blood cells

• Haemoglobin

• Plasma

• Platelets

Pointers :

• The human circulatory system pages 32-39.