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