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Circulatory System Parts of the Heart Study Guide
Circulatory System
Heart
Atrium
Right Atrium
Left Atrium
Ventricles
Right Ventricle
Left Ventricle
Valve
Pacemaker
Septum
Parts of the heart
Carries needed substances to cells
Carries waste products away from
cells
It helps to fight disease.
Also known as cardiovascular system
A hollow muscular organ that pumps
blood throughout the body
Two upper collecting chambers of the
heart
Receives blood from the body. The
blood is low in oxygen and high in
waste
Receives oxygen-rich blood from the
lungs
Two lower pumping chambers of the
heart
Pumps blood with low-oxygen to the
lungs
Pumps blood with high oxygen to all
parts of the body
A flap of tissue that prevents blood
from flowing backward
Located in the right atrium and sends
out signals that make the heart
muscle
When does it signal the heart to
speed up?
Thick muscular wall the separates the
right and left sides of the heart
Be able to label the parts of the heart