Cardio Flashcards

1
Q

sinoatrial node (SA)

A

known as pacemaker, in the upper wall right artrium, accepts pulse from conduction system of the cardiac system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

atrioventricular node

A

in the wall of right atrium, accepts pulse from conduction system of the cardiac system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

conduction system 1st phase

A

cardiac cycle, triggers impulse in sinoatrial node, spreads to right & left artria causing them to contract and filling ventricle with blood

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

conduction system 2nd phase

A

impulse reaches the atrioventricular node travels along the atrioventricular bundle down the right and left branches of the septum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

conduction system 3rd phase

A

from within the septum the impulse travels down to the Purkinje fibers, causing the filled ventricles to contract

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

purkinje fibers

A

in the walls of the ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

systole

A

contraction of the heart. pushes blood against the walls of the arteries at a maximum pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

diastole

A

follows the systole, is the rest phase where pressure is at a minimum where the ventricles relax and refills, recoils

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

external control of heart

A

cardiac center of the brain, modulated by epinephrine and norepinephrine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

myocardium

A

heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

pericardium

A

sac around the heart, contains the four chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

median septum

A

divides the four chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

atria

A

2 superior, left/right are the receiving chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

ventricle

A

2 inferior, left/right are the pumping chambers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

right side of the heart

A

pumps deoxygenated blood from the heart to the lungs, known as the pulmonary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

left side of the heart

A

receives oxygenated blood from the lungs and pumps out to the rest of the body, known as systemic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

atrioventricular valve

A

separates the atria and ventricles

18
Q

arterioles

A

smaller arteries. Arterioles connect to capillary and capillary beds to distribute blood

19
Q

venules

A

smaller veins, thinner, they are farther away from the blood pressure. connect the veins to the capillaries

20
Q

lymph vessels

A

thin walled and have one way valves that carry lymph.. Afferent lymph vessels flow into lymph nodes, while efferent lymph vessels flow out of them.

21
Q

lymph fluid

A

it is blood plasma that gets cleaned through lymph nodes and returned to the cardiac system by veins

22
Q

inferior vena cava

A

The inferior vena cava is a vein. It carries deoxygenated blood from the lower half of the body to the right atrium of the heart.

23
Q

AV tricuspid

A

valve in the right atrium opening to the right ventricle

24
Q

pulmonary semilunar valve

A

valve in the right ventricle leading to the lungs

25
pulmonary cycle
body>deoxygenated blood>superior/inferior vena cava>right atrium>AV tricuspid>right ventricle>pulmonary semilunar valve>pulmonary artery>lungs
26
systemic cycle
oxygenated blood>pulmonary veins>left atrium>bicuspid mitral valve>left ventricle>aortic semilunar valve>aorta>body
27
AV bicuspid mitral
valve in the left atrium opening to the left ventricle
28
aorta semilunar valve
valve in the left ventricle leading to the body
29
'lub'
first sound of the AV valves closing
30
'dub'
second sound of the semilunar valves closing
31
superior vena cava
carries deoxygenated blood from the upper half of the body to the right atrium of the heart.
32
hemoglobin
carries oxygen from the lungs to the bodies tissues and returns carbon dioxide from the tissues back to the lungs
33
capillaries
microscopic cells only one cell thick
34
veins
carry blood from the body parts to the heart. Have one way valves
35
lymph capillaries
intertwined with cardiovascular capillaries to absorb blood plasma that has leaked
36
lymph nodes
contain lymphocytes which seek out pathogens in the fluid
37
hypertension
can cause ruptures in the arterioles causing a stroke
38
atherosclerosis
is a build up pf plaque in the walls which reduces the blood flow
39
embolus
plaque traveling through the blood vessel
40
stroke
occurs when blood flow to the brain is stopped causing death of brain tissue
41
heart attack
myocardial infarction occurs when blood flow to the heart is stopped and cardiac tissue dies