Lecture 13

Question 1

located in the mediastinum between the lungs; just superior to the diaphragm

Answer 1

location of the heart

Question 2

________ is in the pericardial cavity

Answer 2

the heart

Question 3

the heart is shaped like a ______

Answer 3

cone

Question 4

the ______ of the heart is the top of the cone; top, broad area of the heart

Answer 4

base

Question 5

the _______ of the heart is the bottom of the cone; bottom, pointy area of heart

Answer 5

apex

Question 6

a serous membrane that surrounds and protects the heart

Answer 6

pericardium

Question 7

dense irregular connective tissue

Answer 7

outer parietal layer of the pericardium

Question 8

1. adheres to heart
2. epithelial cells that secrete pericardial fluid into pericardial cavity (space between layers of pericardium)
3. pericardial fluid reduces friction between layers

Answer 8

inner visceral layer of the pericardium

Question 9

what are the chambers of the heart?

Answer 9

right and left atria and right and left ventricles

Question 10

1. superior chambers of the heart
2. interatrial septum
3. opening of coronary sinus, superior vena cava, and inferior vena cava

Answer 10

right and left atria

Question 11

1. inferior chambers of heart
2. chordae tendineae
3. papillary muscle
4. interventricular septum

Answer 11

right and left ventricles

Question 12

what are the layers of the heart?

Answer 12

endocardium, myocardium, epicardium

Question 13

inner most layer; thin layer of endothelium over thin layer of connective tissue

Answer 13

endocardium

Question 14

continuous with endothelium of vessels that open into heart chambers; lines entire cardiovascular system

Answer 14

endocardium

Question 15

middle layer of the heart; cardiac muscle tissue

Answer 15

myocardium

Question 16

visceral layer of pericardium

Answer 16

epicardium

Question 17

what are the valves on the right side of the heart?

Answer 17

tricuspid valve (atrioventricular valve)
pulmonary valve (semilunar valve)

Question 18

what are the valves on the left side of the heart?

Answer 18

bicuspid (mitral) valve (atrioventricular valve)
aortic valve (semilunar valve)

Question 19

what is another name for the bicuspid valve?

Answer 19

mitral valve

Question 20

only the ___________ valves have chordae tendinae and papillary muscle associated with them

Answer 20

atrioventricular valves

Question 21

what are the atrioventricular valves?

Answer 21

tricuspid valve and bicuspid (mitral) valve

Question 22

what are the semilunar valves?

Answer 22

pulmonary valve and aortic valve

Question 23

function is to prevent back flow

Answer 23

valves

Question 24

what are the major vessels?

Answer 24

superior and inferior vena cava
pulmonary arteries and veins
coronary sinus
aorta

Question 25

what are the different parts of the aorta?

Answer 25

ascending, arch of aorta, descending (thoracic and abdominal aorta)

Question 26

located in ________: anterior interventricular branch and circumflex branch

Answer 26

left coronary artery

Question 27

located in_________: posterior interventricular branch and marginal branch

Answer 27

right coronary artery

Question 28

arteries branching off of ________: brachiocephalic trunk, left common carotid artery, and left subclavian artery

Answer 28

arch of aorta

Question 29

located in________: R. common carotid artery and R. subclavian artery

Answer 29

brachiocephalic trunk

Question 30

divides into left and right common iliac

Answer 30

descending aorta (abdominal aorta)

Question 31

many vessels off the descending aorta which carries ________ blood to various organs

Answer 31

oxygenated

Question 32

name the circulation starting from the arteries:

Answer 32

arteries –> arterioles –> capillaries –> venules –> veins

Question 33

1. sinoatrial (SA node)
2. atrioventicular (AV node)
3. bundle of his (AV bundle)
4. right and left bundle branches
5. perkinje fibers

Answer 33

conduction system of heart

Question 34

which veins carry oxygenated blood?

Answer 34

pulmonary veins

Question 35

if you occlude the right common iliac artery, blood flow will be diminished to what area of the body?

Answer 35

right leg