The Circulatory System Flashcards
What is the function of the Circulatory System?
To circulate blood containing oxygen and nutrients throughout the body. Providing the organs of the body with the energy and nutrition needed to live.
Describe the Anatomy of the heart…
The heart is divided into a right and left side by a thin muscular wall called the septum. Each side has two chambers, an upper chamber called the atrium and a lower chamber called the ventricle.
What does the left atrium do?
It receives oxygen-rich blood from the lungs and passes it to the left ventricle.
What does the left ventricle do?
It pumps the oxygen-rich blood out of the heart. From here, the blood entered the aorta, the largest artery of the body.
What do the arteries do?
They are vessels that transport blood away from the heart. The aorta branches into the smaller arteries that transport the oxygen-rich blood to the entire body. The arteries then branch into tiny vessels called capillaries
What do the capillaries do?
The oxygen and nutrients in the blood are exchanged for carbon dioxide and wastes in the tissues.
What does the right atrium do?
It receives the oxygen-poor blood and passes it to right ventricle.
What does the right ventricle do?
It pumps the blood through the pulmonary arteries into the capillaries of the lung where the carbon dioxide is exchanged for oxygen.
What does the pulmonary veins do?
It carries the oxygen-rich blood to the left atrium of the heart, beginning the cycle again.
