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Anatomy And Physiology 2 Lecture > Chapter 19 Practice Quiz > Flashcards

Chapter 19 Practice Quiz Flashcards

1
Q

The S1(first) sound of the heart is caused by the _______ of the ______.

A

Closing; AV valves

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2
Q

Which of the following is TRUE of the heart?

A

It is posterior to the sternum and anterior to the vertebral column

It is found within the mediastinum

It contains 4 chambers

The left atrium receives oxygenated blood from the pulmonary circuit

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3
Q

A decrease in venous return will cause stroke volume to _____________________________

A

decrease

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4
Q

As end diastolic volume increases , stroke volume will__________________________________________

A

increase

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5
Q

Which of the following is TRUE?

A

The left ventricle is the pump of the systemic circuit.

The heart is found in the mediastinum.

The heart contains 2 pumps arranged in series.

The left ventricle generates more pressure than the right ventricle

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6
Q

Excessively high heart rate will cause ventricular filling time to __________________, end diastolic volume to ___________________________________preload to ________________________________________and stroke volume to _________________________________________

A

decrease / decrease /decrease / decrease

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7
Q

The sequence of contraction of the heart chambers is:

A

Both atria followed by both ventricles

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8
Q

Which of the following is TRUE?

A

Cardiac output from right ventricle is equal to cardiac output from left ventricle

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9
Q

As blood flows from the aorta to the right atrium , its oxygen content will_______________

A

decrease

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10
Q

Which of the following contains deoxygenated blood?

A

Coronary sinus

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11
Q

The _____________ prevents backflow from the right ventricle into the right atrium

A

tricuspid valve

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12
Q

Which of the following has the fastest rate of spontaneous rhythmic depolarization?

A

Sinoatrial node

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13
Q

The right side of the heart is associated with the ___________ circulation and the left side of the heart is associated with the ________ circulation.

A

Pulmonary; systemic

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14
Q

An increase in contractility will cause stroke volume to __________________________

A

increase

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15
Q

End diastolic volume is

A

amount of blood in each ventricle at the end of ventricular diastole

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16
Q

Which chamber of the heart has the thickest wall?

A

Left ventricle

17
Q

Which of the following describe(s) cardiac contractile cells?

A

Striated

Branching

Uninucleate

Most numerous cell in the myocardium

18
Q

What structures work to prevent prolapse (i.e., flipping up) of the atrioventricular valves?

A

chordae tendineae

19
Q

The 2nd heart sound is heard when the:

A

Semilunar valves close

20
Q

The following are a list of vessels and structures associated with the heart.

1) Right atrium

2) Left atrium

3) Right ventricle

4) Left ventricle

5) Vena cavae

6) Aorta

7) Pulmonary trunk

8) Pulmonary veins

A

5,1,3,7,8,2,4,6

21
Q

Which of the following links AV valve flaps to the papillary muscles?

A

Chordae tendineae

22
Q

P wave on ECG represents

A

depolarization of the the atria

23
Q

As blood flows from the left atrium to the ascending aorta , its oxygen content will________

A

stay the same

24
Q

Blood is prevented from backflowing INTO the right ventricle by the:

A

pulmonary valve

25
Q

Which of the following is TRUE?

A

Cardiac output is the volume of blood pumped by each ventricle per minute.

Cardiac output is the product of heart rate and stroke volume

Stroke volume is the amount of blood ejected from the ventricle each beat

26
Q

All of the following vessels empty into the right atrium

A

Superior vena cava
Inferior vena cava
coronary sinus

27
Q

Calculate stroke volume given the following: EDV - 120 cc, ESV - 40 cc

A

80 cc

28
Q

How does sympathetic nervous system increase stroke volume?

A

By increasing contractility of the ventricles

29
Q

Pericardial fluid is found between the parietal serous pericardium and the _____________.

A

Epicardium

30
Q

Increase in afterload will lead to ______________________of stroke volume

A

decrease

31
Q

Put the following components of the conduction system of the heart in the correct order:

  1. Purkinje Fibers
  2. SA node
  3. AV bundle
  4. AV node
  5. Bundle Branches
A

2 4 3 5 1

32
Q

A moderate increase in ventricular stretch due to increased venous return would _________________________ contractility of the ventricle.

A

increase

33
Q

The depression in the adult interatrial septum is the _______________.

A

Fossa ovalis

34
Q

During early ventricular systole (isovolumetric contraction) , the AV valves are ________ and the semilunar valves are __________.

A

Closed – closed

Anatomy And Physiology 2 Lecture (37 decks)

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