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32 notecards = 8 pages (4 cards per page)

Viewing:

Activity 3: Coronary Circulation

front 1

Does the contained blood inside the heart chambers nourish the myocardium?

back 1

No

front 2

What are the 6 coronary arteries?

back 2

1. Right coronary artery (RCA)

2. Right marginal artery

3. Posterior interventricular artery

4. Left coronary artery (LCA)

5. Anterior interventricular artery

6. Circumflex artery

front 3

Where does the functional blood supply of the heart come from then? (Hint: 2 sets of arteries)

back 3

Right and left coronary arteries

front 4

What are the 2 branches of the right coronary artery?

back 4

1. Right marginal artery

2. Posterior interventricular artery

front 5

The right marginal artery supplies what side of the heart?

back 5

Lateral right side of the heart

front 6

The posterior interventricular artery supplies what 2 regions of the heart?

back 6

1. Posterior walls of the ventricles

2. Posterior portion of the interventricular septum

front 7

What are the 2 branches of the left coronary artery?

back 7

1. Anterior interventricular artery

2. Circumflex artery

front 8

The anterior interventricular artery supplies what 2 regions of the heart?

back 8

1. Anterior portion of the interventricular spetum

2. Anterior walls of both ventricles

front 9

The circumflex artery supplies what 2 regions of the heart?

back 9

1. Left atrium

2. Posterior portion of the left ventricle

front 10

What are the 5 cardiac veins?

back 10

1. Great cardiac vein

2. Middle cardiac vein

3. Small cardiac vein

4. Coronary sinus

5. Anterior cardiac veins

front 11

The great cardiac vein drains what 2 anterior regions of the heart?

back 11

1. Anterior left ventricle

2. Anterior right ventricle

front 12

The middle cardiac vein drains what 2 posterior regions of the heart?

back 12

1. Posterior right ventricle

2. Posterior left ventricle

front 13

The small cardiac vein drains what part of the heart?

back 13

Lateral right ventricle

front 14

The great, middle, and small cardiac veins all drain into which coronary vein?

back 14

Coronary sinus

front 15

The coronary sinus drains what part of the heart?

back 15

The entire heart

front 16

The anterior cardiac veins drain directly into which chamber of the heart?

back 16

Right atrium

front 17

The auricles cover what 2 parts of the heart?

back 17

Right and left atria

front 18

What tissue is the balance of the heart muscle?

back 18

Ventricular tissue

front 19

Why is the left ventricle thicker?

back 19

There is greater demand on the left ventricle. It must pump blood through the much longer systemic circuit, a pathway with much higher resistance than the pulmonary circuit.

front 20

What is the first branching of the aorta?

back 20

Brachiocephalic trunk

front 21

The ligamentum arteriosum is a cordlike remnant of what structure?

back 21

Ductus arteriosus

front 22

What is the function of the ductus arteriosus in the fetus?

back 22

In the fetus, it allows blood to pass from the pulmonary trunk to the aorta by bypassing the nonfunctional fetal lungs.

front 23

What is the cordlike ridges of muscle throughout most of the right atrium called?

back 23

Pectinate muscle

front 24

The fossa ovalis marks the site of what opening in the fetal heart?

back 24

Foramen ovale

front 25

What is the function of the foramen ovale in the fetal heart?

back 25

It allows blood to pass from the right to the left atrium, thus bypassing the fetal lungs.

front 26

The ridged and pitted muscle located in the ventricles are called what?

back 26

Trabeculae carneae

front 27

The moderator band connects what 2 structures of the heart?

back 27

1. Interventricular septum

2. Anterior papillary muscles

front 28

The moderator band is a bundle of what type of fibers?

back 28

Cardiac muscle fibers

front 29

What is the function of the moderator band?

back 29

Coordinate contraction of the ventricle.

front 30

Is the myocardium of the left ventricle thicker than that of the right's?

back 30

Yes

front 31

Identify the blanks.

back 31

front 32

Identify the blanks.

back 32