Circulatory system Flashcards
The circulatory system carries
oxygen, nutrients, and hormones to cells
The circulatory system removes
waste products, like carbon dioxide.
The Human Heart
vital muscular organ that provides a continuous circulation of blood through the body.
about the size of
a human fist
The heart beats rhythmically based on
electrical impulses from the brain to the heart muscle
Arteries
(away) - Arteries are the biggest blood vessels in the body.
Capillaries
connect veins and arteries
Veins
carry blood back to the heart
Right atrium
receives deoxygenated blood from body via vena cava.
Left atrium
receives oxygenated blood from lungs via pulmonary vein-which is the Only vein carrying oxygenated blood.
Right ventricle
receives deoxygenated blood from right atrium
Left ventricle
receives oxygenated blood from left atrium
Blood is made up of four components:
plasma
red blood cells
white blood cells
platelets
