Internal & External Heart

Question 1

Intervenous Tubercle

Answer 1

Demarcates the two vena cavae; helps direct the blood into the atrium (visualized from right sided view of the heart)

Question 2

Interventricular Septum

Answer 2

The primary function of the interventricular septum is to separate the oxygenated blood from the deoxygenated blood.

The septum receives oxygenated blood from the L & R coronary arteries, also accommodates the conduction system of the heart.

Question 3

The left ventricle supplies the __ portion of the interventricular septum.

Answer 3

Muscular portion

Question 4

The right ventricle supplies the __ portion of the interventricular septum.

Answer 4

Membranous portion

Question 5

The membranous portion is the __ of the septum

Answer 5

Upper (supplied by the right)

Question 6

The muscular portion is the __ portion of the septum.

Answer 6

Lower (supplied by the left)

Question 7

What is the most common deficiency associated with the interventricular septum?

Answer 7

Ventricular septal deficiency

Question 8

Which structures are associated with deoxygenated blood?

Answer 8

Right atrium, Right ventricle, Pulomary trunk

Question 9

Which structures are associated with oxygen rich blood?

Answer 9

Left ventricle, Left atrium, Aortic arch, Pulmonary vein

Question 10

Pulmonary Valve (left, right & intermediate)

Answer 10

Between the pulmonary trunk and the right ventricle - prevents back flow of blood into the right ventricle, made up of connective tissue and endocardium, pocket like

Question 11

Which of the following best describes 3 leaflike structures found within the heart?

Answer 11

Tricuspid valve

Question 12

What does the tricuspid valve control?

Answer 12

The flow of blood from the right atrium (upper chamber) to the right ventricle (lower chamber).

Question 13

Each leaflet is connected via __ to the anterior, posterior, and septal papillary muscles of the right ventricle, respectively.

Answer 13

Chordae tendineae - strong, fibrous connections between the valve leaflets and the papillary muscles; they help to fix the cusps to the walls of the ventricle

Question 14

The tricuspid valve opens to allow blood to flow from the __ to the __ during __.

Answer 14

Right atrium to the right ventricle during diastole

Question 15

The tricuspid valve closes to prevent back flow from the __ during __.

Answer 15

Right ventricle into the right atrium during right ventricular contraction

Question 16

The left ventricular contraction..

Answer 16

Forces oxygenated blood through the aorta to be distributed to the entire body

Question 17

The left coronary artery

Answer 17

Supplies the left side of the heart muscle; divides into branches that supplies blood to the front of the left side of the heart

Question 18

Bicuspid valve (also called the mitral valve)

Answer 18

Controls the flow of blood from the left ventricle to the aorta

Question 19

Ossa Cordis

Answer 19

It’s a fibrocartilaginous structure, located between the left ventricle and aorta, supports the aortic valve, supports the tricuspid valve

Question 20

Where is the tricuspid valve located?

Answer 20

Between the right atrium and ventricle

Question 21

Where is the pulmonary valve located?

Answer 21

Located between the right ventricle and the pulmonary artery

Question 22

Where is the mitral valve located?

Answer 22

Located between the left atrium and left ventricle

Question 23

Where is the aortic valve located?

Answer 23

Located between the left ventricle and the aorta

Question 24

Where is the intervenous tubercle found?

Answer 24

The wall of the right atrium

Question 25

Where are the purkinje fibers located?

Answer 25

In the ventricles

Question 26

What are the leaflike valves of the heart?

Answer 26

Bicuspid (mitral) & Tricuspid valves

Question 27

Blocked atria of the heart repaired surgically would go through the:

Answer 27

Right surface