627- Intro part 1

75 flashcardsby Alexandra
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1
what is the mm pump enclosed in
pericardium
2
what does the pericardium enclose?
mm pump
3
what is the heart size related to
body size
4
what part of the body is the heart equivalent to?
clenched fist
5
where is the heart located?
behind lower half of STERNUM
6
the heart is located ____ lower half of _____
BEHIND lower half of STERNUM
7
heart is rotated to the _______
LEFT
8
what ventricle do we see more of?
right ventricle

bc its rotated to the left
9
when breathing in the diaphragm goes ____
down
10
when inhaling how does the heart move??
descends and rotates to the RIGHT
11
when does the heart descend and rotate right?
inhaling
12
when does the diaphragm contract? inspiration or expiration
inspiration
13
pt presents with right lung atelectasis. Which way does the heart move?
rotates towards the Right
14
atelectasis.. shifts heart to _____ side as pathology
SAME
15
which way does the heart shift with atelectasis???
SAME side as pathology
16
Which was does the heart shift in pneumothorax?
AWAY
17
patient presents with left pneumothorax.. which way do we suspect the heart has shifted??
TOWARDS the right!!!
18
what are the three layers of the heart?
epicardium, myocardium, endocardium
19
which layer of the heart is visceral and has lots of fat?
epicardium
20
which layer of the heart contains coronary blood vessels that nourish the heart?
epicardium
which is thicker?
21
ventricle walls or atrial walls?
ventricle!!!
which is thicker?
22
Right or left ventricle
LEFTTTTT
23
which layer is the smooth interior of the heart?
endocardium
which does more work?
24
ventricles or atria?
ventricles!!! thats why they have thicker walls
25
what are the two different types of valves?
atrioventricular and semilunar
26
what valve is between the LEFT atrium and LEFT ventricle?
mitral (bicuspid) valve
27
what valve is between the RIGHT atrium and RIGHT ventricle
tricuspid valve!! tryyyy to get it right
28
what is the mitral (bicuspid) valve between?
left atrium and left ventricle
29
what is the tricuspid valve between?
right atrium and right ventricle
30
what does the AV valve depend on?
HIGH to LOW pressure gradient
31
the AV valve depends on a LOW to HIGH pressure gradient (T/F?)
FALSEEEE it depends on a HIGH to LOW pressure gradient
32
what happens to valves during diastole????
PASSIVE!!!!!! filling of blood from atria to ventricles
33
during diastole, the AV valves are involved in _____ filling of blood from ______ to ______
PASSIVE filling of blood from ATRIA to VENTRICLES
34
what's the location of the chordae tendineae?
VENTRICULAR surface of cusps
35
what is located on the ventricular surface of cusps?????
the chordae tendineae
36
do chordae tendineae increase or decreased blood flow??
increase it!!! results in increased contraction
37
contraction of ventricles (_____) push ______ semilunar valves
SYSTOLE

OPEN
38
____ of ventricles (SYSTOLE) push OPEN _______ valves
CONTRACTION

SEMILUNAR
39
what does contraction of ventricles (SYSTOLE) cause in the semilunar valves ?
Contraction of ventricles (systole) push open semilunar valves
40
what does stenosis limit?
blood flow
41
what is prolapse of AV Valves??
leaky valve.. blood goes from ventricles BACK INTO atrium
42
What is regurgitation of AV Valves?
blood flowing backwardsp
43
can you hear retrograde flow with auscultation?
yes ma'am
44
what is retrograde flow?
back flow of blood from ventricles to atria (can be heard with auscultation)
45
what is between the R ventricle and pulmonary artery?
pulmonary valve
46
what is between the left ventricle and aorta?
aortic valve
47
what is the pulmonary valve between?
right ventricle and pulmonary artery
48
what is the aortic valve between?
left ventricle and aorta
49
what are semilunar valves dependent on?
pressure gradients!!!!!
50
whats thicker??? aortic cusps or pulmonary cusps????
AORTICCCC bc they have a lot of ****ing work to do
51
each semilunar valve has _______ cusps
3 fibrosis cusps m
52
what's the difference between semilunar valves and AV valves???
outflow of Semilunar valve CANNOT be everted into ventricles!!!!!!
53
pulmonary valve supplies _____ circulation
PULMONARYYYYYYY
54
aortic valve supplies _____ circulation
SYSTEMICCCCCCC
55
semilunar valves: increased ventricular pressure (systole) forces cusps to ___
OPENNNNN
56
what forces semilunar valve cusps to open????
increased ventricular pressure (systole)
57
what do the semilunar valve cusps open to support?
blood filling ventricles (diastole)
58
what is the right atrium supplied by?
vena cava
59
where is the house of SA node???
posterior wall of Right atrium
60
what is in the posterior wall of the right atrium????
SA node
61
what is in the floor above the tricuspid valve????
house of AV node
62
where is the house of AV node???
in the floor above tricuspid valve
63
what atrium receives deoxygenated blood???
right atrium
64
what type of blood does the right atrium receive?
deoxygenated :)
65
what does the left atrium receive?
oxygenated blood thats returning from lungs via pulmonary veinssss
66
where does oxygenated blood from pulmonary veins and lungs go?
left atriumn
67
where does the left atrium empty blood into?
left ventricle via mitral valve
68
where does the right ventricle pump blood?
through PULMONARY circulation!!!
69
what is pulmonary artery pressure???
20/10 mmHg
70
what is low pressure of right ventricle???
20 mmHg
71
the right ventricle works _____ of the left ventricle
1/6th
72
where does the left ventricle pump blood through?
systemic circulation
73
what is systemic pressure (Lventricle)
120/80 mmHg
74
what is high pressure of left ventricle
70-120 mmHg
75
what ventricle is the PRIMARY ISSUE ASSOCIATED WITH HEART DISEASE!?!?!!?
Left ventricle
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