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17 terms

Heart anatomy

layers of the heart
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What side of the heart receives oxygen-poor blood from the body and pumps it through the lungs?
Right side
What side of the heart receives oxygen-rich blood from the lungs and pumps it throughout the body?
The left side
What is the sac that encases the heart called?
Pericardium
What is the most superficial part of the pericardium called and what type of connective tissue is it?
Fibrous pericardium
Dense irregular ct
What are the 3 main functions of the fibrous pericardium?
1.Protection
2. Attachment
3. Helps prevent heart overfilling
What layer is just below the fibrous pericardium and has 3 parts to the membrane?
Serous pericardium
What are the 3 parts (from superficial to deep) of the Serous pericardium(membrane)?
1. Parietal pericardium
2. Visceral pericardium(epicardium)
3. Pericardial cavity
What part of the membrane is fused to the fibrous pericardium?
Parietal pericardium
What makes up the outer layer of the heart wall?
Visceral pericardium
What is another name for the visceral pericardium?
epicardium
what is in between the parietal pericardium and the visceral pericardium?
pericardial cavity
What does the pericardial cavity contain and what is it's function?
film of pericardial fluid
Function- reduces friction between heart and organs
What are the 3 layers of the heart wall(superficial to deep)?
1. Epicardium(visceral pericardium)
2. Myocardium
3. Endocardium
What layer of the heart wall contains blood vessels that nourish the myocardium?
Epicardium ( visceral pericardium)
What layer of the heart wall contains fibrous skeleton of heart and cardiac muscle?
Myocardium
What later of the heart wall electrically insulates upper chambers from lower?
Myocardium
What layer of the heart wall is the deepest and what does it line and cover?
Endocardium
lines chambers and covers valves

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