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
Subdivisions of arteries
Arterioles and arteriole capillaries
What are the smaller blood vessels that branch out from the arteries and lead to the capillaries?
Arterioles
What are the smallest blood vessels in the body
Capillaries
Arterial capillary is connected to venous capillary. True or false?
True
Primary function of both arterial capillary and venous capillary
They form a network, where arteries and veins connect completing the clothes circulatory circuit
The blood flow from the venous capillaries will flow back from the body to heart through the…
Venous blood vessels
The blood will flow back from venous capillaries into the ______ through the veins and into the heart
Venues
