Circulatory and respiratory systems

Choose all of the functions of the circulatory system.

• Carries oxygen and nutrients to the cells

• removes carbon dioxide & waste from cells

• helps fight infections

• carries waste to the kidneys

Choose all the parts of the circulatory system.

• Heart

• Lungs

• Blood

• Blood vessels

Why is it important to have fat on the heart? Choose two.

• So it is able to stay at the right temperature.

• Fat contains energy and this energy helps the heart to pump blood.

• The pumping of blood brings oxygen to your body which you need to live.

• The fat protects your heart from injury.

What may happen to a person if a heart valve malfunctions? Choose the best answer.

• They will lose weight.

• They will feel very tired.

• They may not be able to get enough blood to their organs and they could die.

• They will get dizzy.

Tags

NGSS.HS-LS1-3

The average size of our heart is about...Choose 2.

• The size of a fist

• About 59 in

• The size of 2 fists

• About 27.5 in

Choose the three types of blood vessels.

• Arteries

• Ventricles

• Capillaries

• Veins

Choose three that describe arteries.

• Carries blood to the heart

• Carries blood away from the heart

• Has thick muscular walls

• Empties into the capillaries

Choose three that describe veins.

• Carry blood to the heart.

• Have valves

• Carry blood away from the heart

• Have thin walls

Choose three that describe capillaries.

• One cell thick

• Empty into veins

• Carry blood to the heart

• Exchange gases, nutrients and waste

What would happen to a person if their capillaries were more than one cell thick?

• They would feel hungry.

• It would take longer for nutrients to get around their body and they could get sick or their body would not function properly.

• They would gain weight.

• They would not be able to run very well.

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-2