Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy > 13 The Heart (Lecture) > Flashcards

13 The Heart (Lecture) Flashcards

1
Q

Pericardial cavity contains?

A

heart only

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

Mediastinum cavity contains?

A

the entire cavity between the lungs

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

Base of heart

A

Flat area on top where major vessel attach

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

Apex of heart

A

The pointed bottom portion

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

Pericardium consists of 3 layers

A

Pericardial sac, Pericardial space, Visceral pericard…m

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

Pericardial sac

A

surrounds the outside of the heart but does not touch it

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

Pericardial space

A

this is filled with serus fluid lubricates the moving heart

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

Visceral pericardium

A

outer layer of the heart also called epicardium

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

Wall of the heart consists of 3 layers

A

Epicardium, Myocardium, Endocardium

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

Epicardium

A

describes the outer layer of heart

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

Myocardium

A

Thick layer of cardiac muscle

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

Endocardium (endothelium)

A

inner layer of the heart blood flows over this

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

Chambers of the heart Atria

A

recieve blood from veins they always pump blood to the ventricles directly below

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

Interatrial septum

A

wall between R & L Atrium

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

Sinus opening

A

located in the R atrium. The opening where blood returns from the heart.

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

Ventricles

A

2 larger and lower chambers of the heart. Always pump blood to the arteries.

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

Trabeculae carneae

A

ridged inner surface of the ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Interventricular septum

A

wall betwen R & L Ventricles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Hypertrophied myocardium

A

Wall of L ventricle is thicker than R. R ventricle works harder than the left.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Atrioventricular valves (in

A

R AV valve is tricuspid. L AV valve is bicuspid or mitral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Tricuspid

A

R AV valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Bicuspid

A

L AV valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Annuli fibrosi

A

The rings that surround a valve and maintain its shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Papillary muscles regulate

A

AV valves these are the finger like projections of muscle in the ventricles only

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Chordae tendineae
White fibers that connect the valves to papillary muscles
26
AV valves ________ when ventricles contract
close
27
Semilunar valves
this is where blood leaves the ventricles
28
Aortic semilunar
valve between aorta and left ventricle
29
Pulmonary semilunar
valve between pulmonary vessel and right ventricle
30
Similunars _________when the ventricles relax?
close
31
2 circuits of blood flow
systemic and pulmonary
32
systemic red means
O2 rich CO2 poor blood
33
pulmonary red means
CO2 rich O2 poor blood
34
Ventricales pump ___________ amounts of blood
equal
35
*coronary arteries
supply the heart only
36
coronary sinus
posterior side of heart thick blue vein
37
Cardiac muscle cells have
sarcomeres the smallest unit of muscle contraction
38
Cardiac muscle is
auto rythemic when one contracts they all contract thats why the heart acts like a pump.
39
sinoatrial nodal cells (SA node) is located
superiro R atrium it controls resting HR
40
sinus rythem is
70 bpm
41
interatrial pathway
node to node electrical pathway
42
*Atrioventricular nodal cells (AV node) does...
pauses the electrical signal
43
The AV bundle (bundle of his)
is a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node
44
the bundle branches
are R & L
45
Purkinjie fibers
relay electrical signals to cardiac muscle cells
46
The heart is controlled extrinsicly
controlled by the CNS
47
Nervous system (SA Node)
sypathetic and parasympathetic
48
Endocine system effects the heart how?
epinephrine speeds the heart
49
3 waves P QRS & T represent how many heart beats
1
50
P wave
electrical signal for atrium to contract. atrium contracts after p wave
51
QRS complex
electrical signal for for ventricles to contract. ventricles contract after QRS complex
52
T wave
electrical signal for the ventricles to relax and refill with blood
53
Systole
When the ventricles are contracting and pumping blood
54
Diastole
When the ventricles are relaxed and refill with blood
55
120/80
Normal BP
56
Hypertension begins at ________ BP
140/90
57
120=_________/80=____________
systole / diastole
58
Which one can fluctuate a bit systole or diastole
systole
59
If diastole is elevated what is likely?
high blood pressure
60
Pulse is
a wave of blood passing through an artery
61
heart sound lub
closing of the 2 av valves bicuspid and tricuspid
62
heart sound dub
closing of the similunar valves

Anatomy (30 decks)

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