5/18 Part 1 Flashcards
The cardiovascular system is called…
The circulatory system
The three major structures of the cardiovascular system
The heart, blood vessels, and blood
Primary function of the heart
Pumps blood, moves nutrients through the blood vessels to nourish and remove the metabolism waste from the body
Two pathways of the heart
Pulmonary and systemic circulation
Describe pulmonary circulation
It is the right side of the heart, and it pumps unoxygenated blood to the lungs
Describe systemic circulation
It is the left side of the heart, and it pumps blood throughout the entire body
The heart is like blank divided by a blank
2 pumps, divided by a septum
What type of organ is the heart
Muscular organ
How many chambers does the heart have
Four
Describe the four hollow chambers of the heart
2 atria = upper
2 ventricles = lower chambers
Name the three layers of tissue in the heart
Endocardium is innermost layer
Myocardium is middle layer epicardium third layer
pericardium outer layer— sack
What do blood vessels do? What is their main job?
To carry blood throughout the body
Two types of blood vessels
Arteries and Veins
1) Starting in the heart, the blood flows to the body through…
The arterial blood vessels
Largest artery
Aorta
