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layers of the heart

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?


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?

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?


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?


What later of the heart wall electrically insulates upper chambers from lower?


What layer of the heart wall is the deepest and what does it line and cover?

lines chambers and covers valves

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