Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A & P > heart > Flashcards

heart Flashcards

1
Q

the heart is a —, muscular organ about the size of a —, located between the —

A

hollow; fist; lungs

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

what is the apex of the heart and toward what direction is it pointed?

A

the tip and its pointed towards the left hip

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

fibrous pericardium

A

provides protection and anchors heart in place

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

serous pericardium

A

-made of parietal and visceral
-provides lubricating fluid, which collects in the paracardial cavity, to reduce friction of heart against other tissues

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

pulmonary circuit

A

carries blood from heart to lungs & back, picks up O2 & releases CO2

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

systemic circuit

A

carries blood from heart to body tissues and back, drops off O2, picks up CO2

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

major blood vessels attached to the heart in the pulmonary circuit

A

-pulmonary trunk (branches into L and R pulmonary arteries)
-pulmonary veins

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

major blood vessels attached to the heart in the systemic circuit

A

-venae cavea: superior and inferior
-aorta

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

four chambers of the heart

A

-two atria (right and left atrium) on top to receive blood
-two ventricles (right and left ventricle) on bottom to pump blood back out

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

which two chambers contain oxygenated blood

A

left side of the heart

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

which two chamber contain deoxygenated blood

A

right side of the heart

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

what structure separates the two sides of the heart

A

septum

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

superior venae cavea

A

returns blood to the heart from the upper body

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

right atrium

A

receives deoxygenated blood from the body tissues, covered by auricle

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

coronary blood vessels

A

provide O2 to heart itself, veins-blue, arteries-red

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

pulmonary veins

A

brings oxygenated blood from lungs

17
Q

right ventricle

A

receives deoxygenated blood from right atrium

18
Q

inferior venae cavea

A

returns blood to heart from lower body

19
Q

aorta

A

takes oxygenated blood to body tissues

20
Q

pulmonary arteries

A

carries deoxygenated blood to lungs to pick up more O2

21
Q

left atrium

A

receives oxygenated blood from lungs, covered by auricle

22
Q

left ventricle

A

receives oxygenated blood from left atrium

23
Q

apex

A

tip of heart

24
Q

what structure covers the atria?

A

aurcle

25
Q

what is the function of the valves within the heart

A

flaps of tissue that prevent blood from flowing backwards

26
Q

two sets of valves

A

atrioventricular valves and semilunar valves

27
Q

atrioventricular valves

A

-between atria and ventricles
-R: tricuspid (3 flaps of tissue)
-L: bicuspid (2 flaps of tissue)

28
Q

semilunar valves

A

-between ventricles and major blood vessels
-R: pulmonary valve
-L: aortic valve

29
Q

oxygenated blood flow

A

lungs–> pulmonary veins–> left atrium–> left ventricle–> aorta (to drop off O2 to the rest of the body)

30
Q

deoxygenated blood flow

A

body tissues–> superior and inferior venae cavea–> right atrium–> right ventricle–> pulmonary arteries–> lungs (to pick up more O2 and drop off CO2)

31
Q

pathway of the intrinsic conduction system

A

SA node–> AV node–> AV bundle–> bundle branches–> Purkinjean fibers

32
Q

how does the intrinsic conduction system regulate the heart?

A

-sets the pace for heart contractions
-composed of special tissues able to generate their own impulse
-sinoatrial (SA) node AKA cardiac pacemaker, begins the impulse, which causes contraction of the atria.
-next…

33
Q

diastole

A

-relaxation of heart and filling with blood
-atrial contraction (ventricles fill with blood)
-AV valves close, making the first heart sound (“lub”)

34
Q

systole

A

-contractions of the heart
-isovolumetric contraction: ventricles are contracting with all the valves closed
-ejection phase: pressure in the ventricles builds until the semilunar valves open and blood is released into blood vessels. blood is also refilling atria during this phase
-semilunar valves close making the second heart sound (“dub”)
-isovolumetric relaxation: ventricles…..

35
Q

cardiac output

A

-amount of blood pumped by each ventricle in 1 min
-cardiac output= heart rate x stroke volume

36
Q

heart rate

A

-number of times the heart beats per minute
–stress: sympathetic and parasympathetic Ns can cause rate to go up or down
–hormones: epinephrine and thyroxine raise heart rate
–ions: electrolyte imbalances affect the ability for the heart to contract
–physical factors: age, body temp, overall health

37
Q

stroke volume

A

-volume of blood pumped out by a ventricle in a heart beat
–exercise: additional blood return from muscles brings in more volume to the ventricles
–rapid blood loss: decreases blood returning to heart

A & P (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions