3.3 External Heart

Question 1

Locate the Right atrium

Answer 1

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Question 2

Locate the Right auricle

Answer 2

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Question 3

Locate the Left atrium

Answer 3

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Question 4

Locate the Left auricle

Answer 4

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Question 5

Locate the Right ventricle

Answer 5

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Question 6

Locate the Left ventricle

Answer 6

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Question 7

Locate the IVC. Into what area does this drain?

Answer 7

Right atrium.

Question 8

Locate the SVC. Into what area does this drain?

Answer 8

Right atrium.

Question 9

Locate the Pulmonary trunk

Answer 9

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Question 10

Locate the Ascending aorta

Answer 10

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Question 11

Locate the Right atrioventricular groove (coronary sulcus)

Answer 11

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Question 12

Locate the Left atrioventricular groove (coronary sulcus)

Answer 12

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Question 13

Locate the Anterior interventricular groove (sulcus)

Answer 13

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Question 14

Locate the Posterior interventricular groove (sulcus)

Answer 14

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Question 15

Locate the Pulmonary veins

Answer 15

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Question 16

Locate the Right coronary artery and its 3 branches.

variable

Answer 16

1. Branch to sinoatrial (SA) node: an early branch, coursing toward where the superior vena cava enters the right atrium
2. Right marginal artery: along the inferior margin of the heart
3. Posterior interventricular artery

Question 17

Left coronary artery and its 2 branches.

variable

Answer 17

LCA origin near ascending aorta.

1. Anterior interventricular artery: found in the anterior interventricular sulcus, with the great cardiac vein
2. Circumflex artery: found within the coronary sulcus wrapping around to the posterior aspect of the heart.

Question 18

Locate the Coronary sinus.

Answer 18

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Question 19

Identify the Great cardiac vein and course.

Answer 19

Becomes the coronary sinus.

Question 20

Identify the Small cardiac vein and its course.

Answer 20

The small cardiac vein originates near the marginal artery along the inferior margin of the heart.

Question 21

Identify Middle cardiac vein and its course

Answer 21

Runs with the posterior interventricular artery in the posterior interventricular groove/sulcus. The middle cardiac vein empties into the coronary sinus.

Question 22

Identify the Posterior vein of the left ventricle (left posterior ventricular v.)

Answer 22

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Question 23

Identify the Oblique cardiac vein

Answer 23

A small vessel which descends obliquely on the back of the left atrium and ends in the coronary sinus