Brainscape's Knowledge GenomeTM

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


See full index

Anatomy 2 > Week 2 > Flashcards

Week 2 Flashcards

1
Q

Where is the heart located?

A

Mediastinum

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

What are the different layers of the heart?

A

Pericardium, Epicardium, Myocardium, Endocardium

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

What are the chambers of the heart?

A

Atria and ventricles

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

What is the name of the structure that separates the right and left sides of the heart?

A

Septum

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

What is the name of the valve that separates the right atrium from the right ventricle?

A

Tricuspid valve

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

What is the name of the valve that separates the left atrium from left ventricle?

A

Bicuspid valve

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

Mitral valve is also known as__________?

A

Bicuspid valve

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

Does the heart receive
most of the blood
when the heart
relaxes or contracts?

A

Relaxes

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

Oxygenated blood is supplied to myocardium by ________________________?

A

Right & left coronary arteries

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

Where are the right & left coronary arteries located?

A

From the aorta

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

RCA branches into __________________, and supplies right
atrium and ventricle

A

Right marginal artery

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

LCA branches into ____________________ and ____________________, and primarily supplies left ventricle and atria

A

Circumflex artery and anterior interventricular artery

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

Marginal artery pairs with the _________?

A

Small cardiac vein

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

In fetal heart circulation: All nutrient, excretory, & gas exchanges occur
through ___________ connected to fetus by umbilical cord.

A

Placenta

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

Circumflex artery is going to pair with _________?

A

Left marginal artery

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

Umbilical cord is made of which 3 parts?

A

one umbilical vein, and two umbilical arteries

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

What are the fetus’ two shunts that bypass lungs?

A

Foramen ovale and Ductus arteriosus

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

Oval “flap-like” covering in the septum of the heart, connecting R & L atria is called _______________?

A

Foramen ovale

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

What does the foramen ovale become when we are born?

A

Fossa ovalis

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

Short vessel connecting
pulmonary trunk & aorta is called ___________?

A

Ductus arteriosus

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

Ductus arteriosus becomes ___________ when we are born?

A

Ligamentum
arteriosum

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

The _____________ is a circle of arteries around the pituitary gland and the base of the brain

A

Circle of Willis

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

If you cut off the nerve supply to the
heart, would it still beat?

A

Yes

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

_________________ is defined as how the heart has cells that are self stimulating. This enables self generated rhythmic firing (spontaneous contractions) of the heart

A

Autorhythmicity

25
Q

What is the main pacemaker of the heart?

A

SA node

26
Q

What has the fastest rhythm and so sets the pace (or rate of contraction) for the entire heart?

A

SA node

27
Q

What two systems regulate the heart rate?

A

Autonomic Nervous System + Intrinsic (built-in) Conduction
System

28
Q

What nerve slows the heart rate?

A

Vagus nerve

29
Q

What system is the vagus nerve from?

A

The Parasympathetic Nervous System

30
Q

SA node beats at ______ bpm/min

A

100

31
Q

The conduction system is made up of ________________ cardio myocytes

A

Non-contractile

32
Q

The _____________ generates an electrical signal that causes the upper heart chambers (atria) to contract.

A

SA node

33
Q

The signal from SA node then passes through the ___________________to the lower heart chambers (ventricles), causing them to contract, or pump.

A

AV node

34
Q

Cardiac muscle cells are
connected by __________________,
which contain gap junctions

A

Intercalated discs

35
Q

The action potential causes the
cardiac muscle cells to ___________

A

Contract

36
Q

Is repolarization relaxation or contraction?

A

Relaxation

37
Q

An __________________
(the device) magnifies
the electrical activity of
the heart during the
cardiac cycle.

A

Electrocardiograph

38
Q

What does the P wave represent in the ECG?

A

Atrial depolarization

39
Q

What does the QRS complex wave represent in the ECG?

A

Ventricular depolarization

40
Q

What does the T wave represent in the ECG?

A

Ventricular repolarization

41
Q

_______________ is lack of adequate blood supply to heart muscles

A

Ischemia

42
Q

Damage to AV node = ventricles beat at their own rate means __________________.

A

Heart block

43
Q

______________ is rapid uncoordinated shuddering of the heart muscle

A

Fibrillation

44
Q

Condition characterized by dead tissue areas in the myocardium caused by interruption of BF to the area describes what condition?

A

Myocardial Infarction (MI)

45
Q

What are the (4) steps in the Cardiac Cycle?

A

❶ Ventricular Filling
❷ Isovolumetric Contraction
❸ Ventricular Ejection
❹ Isovolumetric Relaxation

46
Q

(3) steps of ventricular Filling

A

① rapid ventricular filling;
② diastasis;
③ atrial systole

47
Q

What does EDV mean?

A

End-diastolic volume

48
Q

________________ = the
amount of blood
pumped out by each side
of the heart in one
minute

A

CO (cardiac output)

48
Q

What does
“CO = HR x SV” mean?

A

Cardiac output = heart rate x stroke volume

49
Q

_______________= the
volume of blood pumped
out by each ventricle with
each heart beat

A

SV (stroke volume)

50
Q

ventricle ejects as much blood as it receives from _______?

A

Atrium

51
Q

___________ the
pressure of
circulating blood on
the walls of your
blood vessels

A

Blood pressure

52
Q

(3) Factors affecting stroke volume of the heart

A
  • Preload
  • Afterload
  • Contractibility
53
Q

Amount of tension in ventricle before contraction is ____________

A

Preload

54
Q

The posterior interventricular artery works in a pair with _______?

A

Middle cardiac vein

55
Q

The Anterior interventricular artery works in a pair with ___________.

A

Great cardiac vein

56
Q

Contracting force that the heart muscle must generate to
eject blood into arteries is _______________

A

afterload

57
Q
A

Anatomy 2 (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions