Lecture 13 Flashcards

1
Q

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

A

location of the heart

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2
Q

________ is in the pericardial cavity

A

the heart

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3
Q

the heart is shaped like a ______

A

cone

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4
Q

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

A

base

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5
Q

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

A

apex

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6
Q

a serous membrane that surrounds and protects the heart

A

pericardium

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7
Q

dense irregular connective tissue

A

outer parietal layer of the pericardium

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8
Q
  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
A

inner visceral layer of the pericardium

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9
Q

what are the chambers of the heart?

A

right and left atria and right and left ventricles

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10
Q
  1. superior chambers of the heart
  2. interatrial septum
  3. opening of coronary sinus, superior vena cava, and inferior vena cava
A

right and left atria

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11
Q
  1. inferior chambers of heart
  2. chordae tendineae
  3. papillary muscle
  4. interventricular septum
A

right and left ventricles

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12
Q

what are the layers of the heart?

A

endocardium, myocardium, epicardium

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13
Q

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

A

endocardium

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14
Q

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

A

endocardium

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15
Q

middle layer of the heart; cardiac muscle tissue

A

myocardium

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16
Q

visceral layer of pericardium

A

epicardium

17
Q

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

A
tricuspid valve (atrioventricular valve)
pulmonary valve (semilunar valve)
18
Q

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

A
bicuspid (mitral) valve (atrioventricular valve)
aortic valve (semilunar valve)
19
Q

what is another name for the bicuspid valve?

A

mitral valve

20
Q

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

A

atrioventricular valves

21
Q

what are the atrioventricular valves?

A

tricuspid valve and bicuspid (mitral) valve

22
Q

what are the semilunar valves?

A

pulmonary valve and aortic valve

23
Q

function is to prevent back flow

24
Q

what are the major vessels?

A

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

25
what are the different parts of the aorta?
ascending, arch of aorta, descending (thoracic and abdominal aorta)
26
located in ________: anterior interventricular branch and circumflex branch
left coronary artery
27
located in_________: posterior interventricular branch and marginal branch
right coronary artery
28
arteries branching off of ________: brachiocephalic trunk, left common carotid artery, and left subclavian artery
arch of aorta
29
located in________: R. common carotid artery and R. subclavian artery
brachiocephalic trunk
30
divides into left and right common iliac
descending aorta (abdominal aorta)
31
many vessels off the descending aorta which carries ________ blood to various organs
oxygenated
32
name the circulation starting from the arteries:
arteries --> arterioles --> capillaries --> venules --> veins
33
1. sinoatrial (SA node) 2. atrioventicular (AV node) 3. bundle of his (AV bundle) 4. right and left bundle branches 5. perkinje fibers
conduction system of heart
34
which veins carry oxygenated blood?
pulmonary veins
35
if you occlude the right common iliac artery, blood flow will be diminished to what area of the body?
right leg