Circulatory System Flashcards

1
Q

Blood flow through the heart

A

1) body –>
2) inferior/superior vena cava –>
3) right atrium –>
4) tricuspid valve –>
5) right ventricle –>
6) pulmonary arteries –>
7) lungs –>
8) pulmonary veins –>
9) left atrium –>
10) mitral or bicuspid valve –
11) left ventricle –>
12) aortic valve –>
13) aorta –>
14) body

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2
Q

which side of the heart is the pulmonary circuit

A

R side

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3
Q

where is the heart located

A

between the 3rd and 5th ICS

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4
Q

where is the heart apex/ PMI (point of maximal impulse)

A

L side
5th ICS midmamillary line

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5
Q

where does oxygen exchange in the lungs happen

A

capillaries

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6
Q

layers of the heart (outer to inner)

A
  1. pericardium
  2. myocardium (muscle layer)
  3. endocardium
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7
Q

3 layers of the systemic blood vessels

A
  1. tunica adventitia
  2. tunica media
  3. tunica intima

-arteries have collagen to adjust to pressure of heart beating

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8
Q

does diastolic or systolic represent the pressure in the heart when ejecting blood

A

systolic

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9
Q

does diastolic or systolic represent the pressure in when the ventricles are filled and the heart is relaxed

A

diastolic

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10
Q

How to calculates pulse pressure

A

Systolic - Diastolic
Ie. 120-80=40

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11
Q

how to calculate mean arterial pressure

A

1/3 of the pulse pressure
PLUS +
diastolic

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12
Q

the amount of blood ejected from the heart in one beat

A

stroke volume

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13
Q

Right sided heart failure will have what sort of signs

A

body issues

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14
Q

Left sided heart failure will have what sort of signs

A

lung issues

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15
Q

-respond to change in the stretch of blood vessels
-located in carotid and aorta
-blood pressure regulation

A

baroreceptors

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16
Q

-respond to change in oxygen, CO2, & H
-located in carotid and aorta
-blood pressure regulation

A

chemoreceptors

17
Q

filtered lymph drains into the subclavian veins on the _____ _________ and the inter jugular vegan on the _________

A

right arm
left

18
Q

main pacemaker of the heart

A

SA node
-located in the R atrium

19
Q

electrical system of heart pathwaty

A
  1. SA node
  2. AV node
  3. Bundle of his/ AV bundle
  4. R/L bundle branches
  5. Purkenge fibers
20
Q

PQRST on ECG

A

P= contraction of atrium
QRS= depolarization of ventircles
T= repolirzation of ventricles