The Heart Flashcards

1
Q

four chambers in the heart

A

right atrium, right ventricle (anterior side) left atrium, left ventricle (posterior side)

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2
Q

atrium

A

blood enters heart

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3
Q

ventricle

A

blood exits heart

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4
Q

superior vena cava

A

draining blood from head and upper limbs

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5
Q

inferior vena cava

A

draining blood from lower limbs

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6
Q

right atrium

A

deoxygenated blood enters from superior and inferior vena cava

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7
Q

right ventricle

A

forceful pumping of deoxygenated blood to the lungs

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8
Q

pulmonary trunk

A

conducts deoxygenated blood from the heart to the lungs

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9
Q

right and left pulmonary arteries

A

direct deoxygenated blood to the corresponding lung

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10
Q

pulmonary veins

A

carries oxygenated blood from the lungs to the left atrium of the heart

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11
Q

left atrium

A

holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart

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12
Q

left ventricle

A

receives oxygenated blood from the left atrium and pumps it out under high pressure through the aorta to the body

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13
Q

aorta

A

pump oxygenated blood out to the body

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14
Q

off of aorta

A

brachiocephalic trunk, left common carotid artery, left subclavian artery

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15
Q

brachiocephalic trunk

A

supplies blood to right arm and trunk (1)

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16
Q

left common cartoid artery

A

supplies blood to head and neck

17
Q

left subclavian artery

A

supplies blood to left arm

18
Q

blood through right side of heart

A

(deoxygenated blood) superior and inferior vena cava> right atrium> tricuspid (AV) valve> right ventricle> pulmonary semilunar> pulmonary trunk> pulmonary arteries (1 for each lung)

19
Q

blood through left side of heart

A

(oxygenated blood) lungs> pulmonary vein> left atrium> mitral (AV) valve> left ventricle> aortic semilunar valve> aorta> all of body

20
Q

Right and left sides of hearts responsibilities

A

right: receiving blood and sending to lungs; left: taking in oxygenated blood and getting it to the rest of the body

21
Q

in right atrium

A

pectinate muscles, fossa ovale, right atrioventricular valve

22
Q

in right ventricle

A

right atrioventricular valve, papillary muscles, chordae tendinae, pulmonary semilunar valve

23
Q

pectinate muscles

A

ridged, lining walls; as bag fills wall will stretch and smooth out, found in right atrium

24
Q

fossa ovale

A

was a hole until your 1st breath; scar left from this closing; found in right atrium

25
Q

right atrioventricular valve

A

(tricuspid) allow blood to go from right atrium to right ventricle opens when atrial pressure rises, closes when ventricle pressure increases; found in right atrium

26
Q

papillary muscles

A

prevent backwards flow of ventricular blood into atrial cavities; attached to the tricuspid valve by chordae tendinae; right ventricle

27
Q

chordae tendinae

A

“heart strings”; connect papillary muscles to the tricuspid and bicuspid valves in the heart; right ventricle

28
Q

pulmonary semilunar valve

A

(3 crescent shaped cusps) lies btw right ventricle and pulmonary artery; opens when pressure in right ventricle rises a live pressure in pulmonary artery, when pressure falls it closes; right ventricle

29
Q

left atrioventricular valve

A

“mitral” same as right

30
Q

papillary muscles

A

in left ventricle (same as right)

31
Q

chordae tendinae

A

in left ventricle (same as right); when left ventricle contracts blood goes out aorta

32
Q

aortic semilunar valve

A

between the left ventricle and aorta; 3 crescent shaped cusps (pressure rises ventricle opens, pressure lowers in ventricle closes)