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_____ is how many times a minute your heart beats.
heart pump
heart dance
pulse
heart beat
What type of organ is the heart?
a tendon
a muscle
a joint
a ligament
What body system is the heart a part of?
respiratory system
skin
circulatory system
skeletal system
The heart is part of the _______ system, a network made up of the heart, blood, and blood vessels.
circulatory
skin
respiratory
muscular
When the chambers of the heart ____, they fill up with blood.
relax
squeeze
When the chambers of the heart _____ the flood is forced out.
squeeze
relax
The tubes that carry blood throughout every part of the body are called _____.
tendons
cells
organs
blood vessels
Which blood vessels carry blood BACK to the heart?
arteries
veins
Which blood vessels carry blood AWAY from the heart?
arteries
veins
Arteries branch off into tiny blood vessels called _______.
capillaries
caterpillars
veins
The function of capillaries is to...
carry blood away from the heart
carry blood back to the heart
deliver blood to all the body’s cells
What is the component of blood
plasma, white blood cell, red blood cell, platelets
How many type of blood vessal are there?
1
3
4
2
