The Heart

Question 1

Pericardium (Heart Wall)

Answer 1

double walled sac, it encloses the heart.

• allows beating of heart w/ out friction
• room expansion, not excessive
• location: inferiorly to the diaphragm and anteriorly to the sternum

Question 2

Fibrous Layer (Pericardium, heart wall)

Answer 2

superficial layer of Pericardium

• dense CT
• protects and anchors heart
• prevents overstretching

Question 3

Serous Layer (Pericardium, heart wall)

Answer 3

deep and thin layer of Pericardium

- produces serous fluid

Question 4

Parietal Pericardium (sub-parts of serous pericardium)

Answer 4

outer layer of serous pericardium.

- fused w/ inner portion of fibrous layer

Question 5

Visceral Pericardium/ Epicardium (sub parts of Serous Pericardium)

Answer 5

inner layer of serous pericardium.

- directly on the surface of the heart. Closer/ touches to the heart.

Question 6

Pericardial Cavity

Answer 6

space inside pericardial sac

- filled with serous fluid

Question 7

Chambers of the heart

Answer 7

4

• Right Atrium
• Left Atrium
• Right Ventricles
• Left Ventricles

Question 8

Atria (atrium sing.)

A before V

Answer 8

Right and Left

• Two superior (above) chambers
• Receive Blood returning to the heart*

Question 9

Ventricles

A before V

Answer 9

Right and Left

• Two inferior (below) chambers
• Pumps blood into arteries*

Question 10

Sulci of the heart

Answer 10

grooves on surface of heart

- contains coronary (heart) blood vessels and fat

Question 11

Coronary Sulcus

Answer 11

makes the boundary between atria and ventricles