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A&P 2 > Final Exam: Ch 19 > Flashcards

Final Exam: Ch 19 Flashcards

1
Q

Which of the following carry oxygen-poor blood?

A

Venae cavae and pulmonary arteries

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2
Q

Which of the following belong to the pulmonary circuit?

A

Pulmonary arteries and pulmonary veins

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3
Q

The heart is enfolded within a space called the

A

pericardial cavity

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4
Q

The apex of the heart is found ______
of the midline of the body.

A

To the left

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5
Q

Pericardial fluid is found between the

A

parietal layer of the serous pericardium; visceral layer of the serous pericardium

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6
Q

The_____ performs the work of the heart.

A

myocardium

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7
Q

the ______ are the superior chambers of the heart and the ____ are the inferior chambers of the heart

A

artia
ventricles

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8
Q

the ventricles are the thicker more powerful chambers of the heart. they pump blood to the lungs and body

A

true

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9
Q

Which structure is highlighted

Look at pic on phone

A

Myocardium of left ventricle

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10
Q

Which structure is highlighted

Look at pic

A

Pulmonary valve

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11
Q

The chordate tendinae of the AV valves are anchored to the _____ of the ventricles

A

Papillary muscles

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12
Q

The _____ valve regulates the flow of blood between the right ventricle and the vessels leading to the lungs

A

Pulmonary

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13
Q

Oxygen-poor blood passes through the

A

Right AV and pulmonary valves

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14
Q

The right atrioventricular valve regulates the opening between

A

Right atrium and right ventricle

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15
Q

The area where the major vessels lead to and from the heart’s chambers of called the ____ of the heart. The point inferior portion of called the ____

A

Base
Apex

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16
Q

The shallow depression seen on the external surface of the heart between the left and right ventricles is called the

A

Interventricular sulcus

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17
Q

Cells of the sinus trial node ________ during the pacemaker potential

A

Depolarize slow

18
Q

When sodium channels are fully open the membrane of the ventricular cardiomyocyte

A

Sharply depolarizes

19
Q

The long absolute refractory period of cardiomyocytes

A

Prevents tetanus

20
Q

Atrial systole beings

A

During the P wave

21
Q

Atrial depolarization causes the

A

P wave

22
Q

An extended period of time between the P wave and the QRS complex may indicate which of the following

A

The signal is taking too long to get to the AV node

23
Q

In a normal ECG the deflection that is generated by ventricular depolarization is called the

A

T wave

24
Q

Blood pressure is usually measured in millimeters of mercury (mmHg) but could be measured with any liquid such as water (mm H2O)

A

True

25
Q

Mercury is used to measure blood pressure because it is ____ compared to other liquids

A

More dense

26
Q

Mitral valve prolapse causes blood to leak back into the _____ when the ventricles contract

A

Left atrium

27
Q

When the left ventricle contracts the ___ valve closes and the ______ valve is pushed open

A

Mitral
Aortic

28
Q

When the ventricles relax the _______ valve prevents back flow of blood into the left ventricle

A

Aortic

29
Q

Mitral valve prolapse (MVP) generates a murmur associated with the _____ heart sound that occurs when the _____

A

Lubb (s1)
Ventricles contract

30
Q

When the aortic semilunar valve closes and blood bounded off of it, it produces the ______ heart sound that is ultimately related to when the ____

A

Dupp (S2)
Ventricles relax

31
Q

During isovolumetric contraction the pressure in the ventricles

A

Rises rapidly

32
Q

What is the correct sequence of events of the cardiac cycle

A
  1. Ventricular filling
  2. Isovolumetric contraction
  3. Ventricular ejection
  4. Isovolumetric relaxtion
33
Q

Congestive heart failure (CHF) of the right ventricle

A

Can cause systemic edema

34
Q

Isovolumetric contraction occurs during the ____ of the electrocardiogram

A

R wave

35
Q

Most of the ventricle filling occurs

A

During atrial diastole

36
Q

The volume of blood ejected by each ventricle in one minute is called the

A

Cardiac output

37
Q

Stroke volume is increased by

A

Increased venous return

38
Q

Blood flows into vessel C from which chamber

See pic

A

Right ventricle

39
Q

Where does blood in vessel E flow to

See pic

A

Right atrium

40
Q

Through which valve does blood flow to enter into vessel B

See pic

A

Aortic

A&P 2 (55 decks)

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