Heart

Question 0

What is the venous draining of the pericardium?

Answer 0

The pericardiacophrenic veins, tributaries of the brachiocephalic (or internal thoracic) veins

Question 1

What supplies blood to the pericardium?

Answer 1

The pericardiacophrenic artery, a branch of the internal thoracic.

Question 2

Apex of the heart:

Answer 2

• formed by the inferolateral part of the LV

- mitral sounds may be heard here (apex beat)

Question 3

Base of the heart:

Answer 3

• posterior aspect

- mainly LA but a little RA as well

Question 4

What are the four surfaces of the heart?

Answer 4

1) Anterior (sternocostal)
2) Diaphragmatic (inferior)
3) Left Pulmonary
4) Right Pulmonary

Question 5

What are the four borders of the heart?

Answer 5

• Right
• Left
• Inferior
• Superior

Question 6

Blood flow of RA

Answer 6

-Receives blood from SVC, IVC, and coronary sinuses.

Question 7

Function of right auricle:

Answer 7

-increase the capacity of the atrium as it overlaps the ascending aorta

Question 8

Interatrial septum

Answer 8

Separates the atria, and has an oval thumbprint-size depression, the fossa ovalis.

Question 9

Trabeculae Carneae

Answer 9

-irregular muscular elevations found in the RV

Question 10

Papillary muscles

Answer 10

-conical projections and tendinous cords that form the cusps of valves.

Question 11

The interventricular septum

Answer 11

-composes of membranous and muscular parts that separates the ventricles

Question 12

Mitral valve

Answer 12

-closes the orifice between LA and LV

Question 13

Septal defects of the heart

Answer 13

• Atrial septum defects

- Ventricular septum defects

Question 14

Valvular heart disease

Answer 14

• involve the valves of the heart where efficient pumping is diminished.
• stenosis=>failure to open fully
• valvular regurgitation=>failure to close fully

Question 15

Right coronary artery pathway

Answer 15

-sinu-atrial nodal branch=>right marginal branch=>AV nodal branch=>posterior IV branch=>Interventricular septal branches

Question 16

RCA supplies:

Answer 16

• RA
• Most of RV
• part of LV
• Parts of IV septum
• SA and AV nodes

Question 17

Left Coronary Artery pathway:

Answer 17

-Arises from left aortic sinus=>LCA=>AnteriorIV branch/Circumflex branch

Question 18

The LCA supplies:

Answer 18

• LA
• Most of LV
• Part of RV
• Most of the IV Septum
• SA node

Question 19

Venous drainage of the heart

Answer 19

• coronary sinus
  
  • great cardiac vein
  • middle/small cardiac veins
  • left posterior ventricular vein
  • left marginal vein

Question 20

What vein is commonly used for a coronary bypass graft?

Answer 20

-Great saphenous vein

Question 21

Ligamentum arteriosum

Answer 21

-passes from root of the left pulmonary artery to the inferior surface of the arch of the aorta.

Question 22

What nerve is the sole motor supply to the diahragm?

Answer 22

The phrenic nerve, with about 1/3 of its fibers being sensory