Circulatory System Flashcards
What is the purpose of the circulatory system?
Carries oxygenated blood out of the lungs, brings its to the parts of the body that need it, and brings the deoxygenated blood back to the lungs
What is the job of the heart?
Power the circulatory system by pumping blood out of the lungs and into the body and then back to the lungs
How many chambers does the human heart posses?
4
Which ventricle posses higher pressure?
Left Ventricle
Why is the human heart located left of center?
The left ventricle is larger and more muscle dense
Why is the left ventricle muscularly denser than the right?
So to keep the pressure high enough so that the oxygenated blood will leave
Where does the oxygenated blood travel next after leaving the left ventricle?
Through the Aorta
What is the Aorta?
Main artery of the heart which extends from left chamber down through the chest and abdomin into the pelvic groin area
Where does the oxygenated blood travel to after leaving the aorta?
Through smaller arteries
What is the purpose of an artery?
To carry blood away from the heart
Describe the physique of an artery and why it is as such
They are thick walled and muscular to maintain high pressure as the blood travels along
Where does the blood travel through next after the artery?
Through the smaller arterioles
Where does the blood travel through after the arterioles?
Into the capillary beds
What are two purposes of the capillary beds?
- Facilitate oxygen delivery to cells in the body that need it
- Pick up carbon dioxide
Where does the blood travel to after the capillary beds?
It travels through a series of veins