Heart

Question 1

Where is the heart located?

Answer 1

Middle Mediastinum

Question 2

What surrounds the heart?

Answer 2

pericardium

Question 3

what makes up the pericardial sac?

Answer 3

continuous with the tunica adventitia of the great vessels

Question 4

What makes up the serous pericardium

Answer 4

Parietal layer, visceral layer, and pericardial cavity

Question 5

what is found in the pericardial cavity?

Answer 5

percardiophrenic artery and vein

Question 6

What is located in the base of the heart?

Answer 6

the L atrium and part of the Right

Question 7

What is located in the diaphragmatic region of the heart?

Answer 7

Both ventricles but primarily left

Question 8

What is in the pulmonary region of heart?

Answer 8

the left ventricle

Question 9

What is in the sternocostal region of the heart?

Answer 9

both ventricles, primarily right, and part of the right atrium

Question 10

what are the four regions of the heart?

Answer 10

1. Base of Heart- posterior
2. Diaphragmatic- Inferior
3. Sternocostal- Anterior
4. Pulmonary- faces left

Question 11

What are the major arteries for the heart?

Answer 11

pulmonary artery, aorta, and coronary artery

Question 12

what are the major veins of the heart?

Answer 12

sup/inf vena cava, pulmonary vein, and coronary vein

Question 13

What branches off the anterior inter-ventricular artery?

Answer 13

L. Marginal artery

Question 14

What branches off the coronary sinus?

Answer 14

Middle Cardiac vein, left posterior ventricular vein, left marginal vein

Question 15

What branches off the Left Coronary?

Answer 15

Left. Marginal artery, anterior inter-ventricular artery, circumflex

Question 16

Branch of Right Coronary Artery?

Answer 16

posterior interventricular, right marginal

Question 17

Blood flow through the heart?

Answer 17

SVC/IVC to R. atrium to tricuspid valve to R. ventricle to pulmonary semilunar to pulmonary artery to lungs to Left atrium to pulmonary vein to Left ventricle to Body

Question 18

Foramen Ovale

Answer 18

bulk of blood flow comes in the same opening then shunted into opening between atria

Question 19

Fossa Ovale

Answer 19

foramen ovale after it closes

Question 20

what vessels empty into R. atrium?

Answer 20

SVC/IVC/ coronary sinus/ anterior cardiac veins/ intervenous tubercle

Question 21

what is the intervenous tubercle?

Answer 21

small projection in wall of R. atrium that divers blood from SVC away from IVC

Question 22

VSD

Answer 22

Ventricular septal defect

Question 23

ASD

Answer 23

atrial septal defect, leaky foramen ovale

Question 24

AVSD

Answer 24

atrioventricular septal defect

Question 25

Heart Murmur

Answer 25

Abnormal heart sounds

Question 26

skeleton of the heart

Answer 26

divides atria and ventricles. Fibrous ring, pulmonary semilunar, bicuspid valve, aortic semilunar, tricuspid valve, AV conducting bundle, R/L trigone

Question 27

three arteries that normally get blocked

Answer 27

1. Anteriorinterventricular artery
2. R. coronary
3. Circumflex artery

Question 28

why is there a 220 ms delay?

Answer 28

the atria have to get rid of blood into ventricles

Question 29

Conduction system of the heart

Answer 29

SA node to AV node to AV bundle to perkinje fibers

Question 30

Functions of the skeletal system of the heart?

Answer 30

1. Structural support for the valves
2. anchoring point for valves
3. Insulator between atria and ventricles
4. origin/ insertion for ventricular muscles