HEART

What are the three components of the circulatory system?

• blood, heart, lungs

• blood, oxygen, heart

• blood, blood vessels, heart

• heart, lungs, oxygen

What is oxygenated blood?

• blood containing oxygen

• blood with no oxygen

• blood which needs oxygen

• blood which has too much oxygen

Your heart is a

Before each beat, your heart fills with....

• plasma

• carbon dioxide

• oxygen

• blood

When the heart _____________, it pushes away from the heart via arteries to the rest of the body.

• pumps

• contracts

• squashes

• stretches

Blood returns back to the heart via the .....

• capillaries

• arteries

• veins

• bronchi

The heart is an involuntary muscle. This means that we ....

Blood is pumped from the heart to the ....

• head

• toes

• arms

• lungs

What does the blood transport?

• nutrients, water, oxygen, hormones

• nutrients, water, oxygen, carbohydrates

• nutrients, nitrogen, oxygen, hormones

• nutrients, water, oxygen, cells

The average heartbeat for a healthy adult is in the raneg of.....

• 30-70 beats per minute

• 60-100 beats per minute

• 60-80 beats per minute

• 50-60 beats per minute