What best describes the role of the circulatory system?
Responda
Takes air into the body and makes oxygen available to our cells
Circulates blood around the body providing nutrients and removes CO2 from cells
Turns food into energy that the body can use
None of the above
Questão 2
Questão
Which of these does the heart do?
Responda
Get rid of waste
Turn food into usable energy
Pump blood around the body
Get rid of blood from the body
Questão 3
Questão
What organs do your circulatory system consist of?
Responda
Your lungs, heart and liver
Your heart, blood vessels and blood.
Your blood only
Your blood vessels and lungs
Questão 4
Questão
What are the types of blood vessels in your body?
Responda
Arteries, blood and plasma
Plasma, veins and capillaries
Plasma only
Arteries, veins and capillaries
Questão 5
Questão
What are capillaries?
Responda
The narrowest type of blood vessel. Reach nearly every cell in the body.
Thick blood vessels that are only found in the heart.
Very narrow blood vessels that extend from the brain to the lungs only
Thick blood vessels that are only found in the brain
Questão 6
Questão
When you get a bruise the capillaries near your skin contract and your skin turns green.
Responda
True
False
Questão 7
Questão
Your heart is as big as your feet and is located near your legs.
Responda
True
False
Questão 8
Questão
The heart is made up of cardiac muscle and never gets tired.
Responda
True
False
Questão 9
Questão
The human circulatory system is referred to as a single system because it has only one circuit.
Responda
True
False
Questão 10
Questão
The circulatory system has [blank_start]two[blank_end] cuircuts. One which blood flows from the [blank_start]heart[blank_end] to the body and back to the [blank_start]heart[blank_end]. It carries nutrients and [blank_start]oxygen[blank_end] to the cells and [blank_start]carbon dioxide[blank_end] and waste away from the cells.
The other flows back from the [blank_start]heart[blank_end] to the [blank_start]lungs[blank_end] and back again.
Responda
two
heart
heart
oxygen
carbon dioxide
heart
lungs
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