the heart Flashcards

1
Q

what side of the heart pumps deoxygenated blood

A

right

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2
Q

what side of the heart pumps oxygenated blood

A

left

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3
Q

what is the circulation through the left side called

A

systemic circulation

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4
Q

what is the circulation through the right side called

A

pulmonary circulation

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5
Q

what are the 4 chambers of the heart

A

left atrium, right atrium
left ventricle, right ventricle

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6
Q

where does the blood pump to on the left side of the heart?

A

away from the heart to the body

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7
Q

where does the blood pump to on the right side of the heart?

A

towards the heart

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8
Q

what do the valves do

A
  • keeps blood moving in 1 direction
  • opens as the heart contracts and closed as the heart relaxes
  • prevents backflow
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9
Q

what does the superior vena cava do

A

a large vein that carries deoxygenated blood from the upper body (head,shoulder,neck and arms) into the heart

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10
Q

what does the pulmonary artery do?

A

carries deoxygenated blood from the heart to the lungs

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11
Q

what does the aorta do?

A

carried oxygenated blood from the heart to the rest of the body (organs)

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12
Q

what does the pulmonary vein do?

A

carries oxygenated blood from the lungs back to the heart

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13
Q

veins carry blood…

A

towards the heart

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14
Q

arteries carry blood …

A

away from the heart

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15
Q

what type of blood do arteries carry

A

oxygenated with the exception of pulmonary artery

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16
Q

what type of blood do veins carry

A

deoxygenated with the exception of the pulmonary vein

17
Q

atria (both left and right atrium)

A

are receiving stations for the blood entering the heart.

18
Q

what does the atrioventricular valve do?

A

ensures blood flows from the atria to the ventricles

19
Q

what does the inferior vena cava do

A

carries deoxygenated blood from the lower body (legs, torso) back to the heart

20
Q

what do the chordae tendineae do
(often called the heart strings)

A

tendons that connect the papillary muscles to the atrioventricular valves preventing the valves from prolapsing into the atria during systole

21
Q

what are the papillary muscles

A

small cone shaped muscles that attach to the atrioventricular valves through the chordae tendineae

22
Q

what does the apex do?

A

the hearts pointed tip loacted at the end of the heart.

23
Q

what does the septum do

A

ensures proper blood flow and prevents mixing of oxygenated and deoxygenated blood

24
Q

which side of the heart is thicker and why?

A

the left side requires a lot more muscle to pump the blood further around the body

25
what do capillaries do
they deliver nutrients and oxygen to the cells through blood and collects wastes from your cells
26
where does blood travel after leaving the heart before returning
heart > arteries > atrioles > capillaries > venules > veins > heart
27
what type of blood do the capillaries carry
both it carries oxygenated blood to organs where it become deoxygenated
28
what is the structure of a capillary
microscopic blood vessels one cell thick.
29
what do arteries do
- carries blood away from the heart
30
what do arterioles do
vasoconstrict and vasodilate to control body temperature
31
what is the structure of an artery
thick muscular elastic walls with no valves
32
what does the coronary artery do
supplies the heart itself with blood