Question 1

When Ca2+ release channels in the sarcoplasmic reticulum of the heart are opened by an increase in Ca2+ in the cytoplasm,this is referred to as

Accepted Answer

A)  calcium-induced fibrillation.
B)  calcium-stimulated depolarization.
C)  calcium-stimulated calcium release.
D)  calcium-induced repolarization.

Question 2

The S-T segment of an ECG represents

Accepted Answer

A)  atrial depolarization.
B)  passage of the electrical impulse to the atrioventricular node.
C)  ventricular depolarization.
D)  the plateau phase of the myocardial action potential.

Question 3

What type of cell found in the blood produces antibodies?

Accepted Answer

A)  monocyte
B)  plasma cell
C)  basophil
D)  neutrophil

Question 4

Bipolar limb lead three uses the

Accepted Answer

A)  left and right arms.
B)  left arm and left leg.
C)  right arm and left leg.
D)  left arm and right leg.

Question 5

What part of the heart's conduction system acts as the primary pacemaker?

Accepted Answer

A)  SA node
B)  AV node
C)  Bundle of His
D)  Purkinje fibers

Question 6

Which of the following is NOT a cause of circus rhythm?

Accepted Answer

A)  damage to the myocardium
B)  certain cells coming out of the refractory period too quickly
C)  shortened myocardial cells
D)  an electrical shock in the middle of a T wave

Question 7

The production and conduction of action potentials in the heart produces a recordable tracing of the electrical activity of the heart called a(n)

Accepted Answer

A)  EMG.
B)  depolarization.
C)  heart scan.
D)  ECG.

Question 8

Vitamin K is needed for

Accepted Answer

A)  proper clotting factor function.
B)  directly activating fibrinogen.
C)  directly stabilizing the fibrin polymer.
D)  activating antithrombin III.

Question 9

Polymorphonuclear leukocytes are also known as

Accepted Answer

A)  basophils.
B)  neutrophils.
C)  eosinophils.
D)  monocytes.

Question 10

Heart murmurs may be caused by _______,a condition in which valves are thickened and calcified.

Accepted Answer

A)  stenosis
B)  fibrillation
C)  regurgitation
D)  septal defect

Question 11

The amount of blood ejected by the ventricles per beat is termed the

Accepted Answer

A)  cardiac output.
B)  end diastolic volume.
C)  blood pressure.
D)  stroke volume.

Question 12

Which of the following is NOT a characteristic of white blood cells?

Accepted Answer

A)  have nuclei and mitochondria
B)  have amoeboid movement
C)  can leave blood vessels
D)  makes up the major formed element

Question 13

Ventricular depolarization

Accepted Answer

A)  occurs prior to atrial depolarization.
B)  appears as the T wave on an ECG.
C)  appears as the P wave on an ECG.
D)  occurs after atrial depolarization.

Question 14

Blood globulins include which of the following types?

Accepted Answer

A)  alpha globulins
B)  beta globulins
C)  gamma globulins
D)  All apply.

Question 15

The oxygen content of arteries in the pulmonary circulation is high.

Accepted Answer

A) True 
 B)False

Question 16

Kallikrein is the active form of plasminogen.

Accepted Answer

A) True 
 B)False

Question 17

Closure of the atrioventricular valves occurs at the end of diastole/beginning of systole.

Accepted Answer

A) True 
 B)False

Question 18

The process of blood cell formation is

Accepted Answer

A)  leukocytosis.
B)  polycythemia.
C)  hematopoiesis.
D)  hemogenesis.

Question 19

Blood clot dissolution is stimulated by tissue thromboplastin.

Accepted Answer

A) True 
 B)False

Question 20

The pulmonary veins return oxygen depleted blood to the right atrium.

Accepted Answer

A) True 
 B)False

Exam 13: Blood,Heart and Circulation

The oxygen content of arteries in the pulmonary circulation is high.

Correct AnswerverifiedShow Answer

Which of the following is NOT a characteristic of white blood cells?

Correct AnswerverifiedShow Answer

Blood globulins include which of the following types?

Correct AnswerverifiedShow Answer

Bipolar limb lead three uses the

Correct AnswerverifiedShow Answer

The amount of blood ejected by the ventricles per beat is termed the

Correct AnswerverifiedShow Answer

The production and conduction of action potentials in the heart produces a recordable tracing of the electrical activity of the heart called a(n)

Correct AnswerverifiedShow Answer

What type of cell found in the blood produces antibodies?

Correct AnswerverifiedShow Answer

Which of the following is NOT a cause of circus rhythm?

Correct AnswerverifiedShow Answer

Polymorphonuclear leukocytes are also known as

Correct AnswerverifiedShow Answer

The S-T segment of an ECG represents

Correct AnswerverifiedShow Answer

The pulmonary veins return oxygen depleted blood to the right atrium.

Correct AnswerverifiedShow Answer

Heart murmurs may be caused by _______,a condition in which valves are thickened and calcified.

Correct AnswerverifiedShow Answer

Blood clot dissolution is stimulated by tissue thromboplastin.

Correct AnswerverifiedShow Answer

Ventricular depolarization

Correct AnswerverifiedShow Answer

Vitamin K is needed for

Correct AnswerverifiedShow Answer

Closure of the atrioventricular valves occurs at the end of diastole/beginning of systole.

Correct AnswerverifiedShow Answer

The process of blood cell formation is

Correct AnswerverifiedShow Answer

What part of the heart's conduction system acts as the primary pacemaker?

Correct AnswerverifiedShow Answer

Kallikrein is the active form of plasminogen.

Correct AnswerverifiedShow Answer

When Ca2+ release channels in the sarcoplasmic reticulum of the heart are opened by an increase in Ca2+ in the cytoplasm,this is referred to as

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

When Ca²⁺ release channels in the sarcoplasmic reticulum of the heart are opened by an increase in Ca²⁺ in the cytoplasm,this is referred to as

Correct Answer
verified