Question 1

Figure 21.3
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label F.

Accepted Answer

A)   Atrium
B)   Aortic arch
C)   Auricle
D)   Coronary sinus
E)   Ventricle E

Question 2

Norepinephrine release produces an increase in both the heart rate and force of contraction through the stimulation of beta receptors on nodal cells and contractile cells.

Accepted Answer

A) True 
 B)False  True

Question 3

Which of the following is a function of the cardiac skeleton of the heart?

Accepted Answer

A)   isolates atrial and ventricular muscle cells
B)   provides instructions for cardiac muscle cells to contract
C)   maintains the energy reserves in the form of glycogen and lipid inclusions
D)   provides full range mobility to the valves of the heart
E)   physically connects the atrial muscle cells to the ventricular muscle cells A

Question 4

Figure 21.5
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label A.

Accepted Answer

A)   AV bundle
B)   Sinoatrial (S
A)   node
C)   Internodal pathways
D)   Atrioventricular (AV)  node
E)   Right bundle branch

Question 5

________ is the term used to indicate a heart rate that is slower than normal.

Accepted Answer

A)   Cardiac tamponade
B)   Bradycardia
C)   Angina
D)   Tachycardia
E)   Coronary ischemia

Question 6

Figure 21.1
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label N.

Accepted Answer

A)   Ventricle
B)   Auricle
C)   Atrium
D)   Esophagus
E)   Mediastinum

Question 7

Which branch(es)of the right coronary artery extends toward the apex along the anterior surface of the right ventricle of the heart?

Accepted Answer

A)   circumflex branch
B)   posterior interventricular branch
C)   atrial branches
D)   right marginal branch
E)   anterior interventricular branch

Question 8

________ release produces a decrease in both the heart rate and force of contraction through the stimulation of muscarinic receptors on nodal cells and contractile cells.

Accepted Answer

A)   Dopamine
B)   Acetylcholine (ACh) 
C)   Serotonin
D)   Norepinephrine (N
E)  
E)   Cholecystokinin

Question 9

Figure 21.2
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label B.

Accepted Answer

A)   Brachiocephalic trunk
B)   Pulmonary trunk
C)   Left common carotid artery
D)   Pulmonary artery
E)   Left subclavian artery

Question 10

Figure 21.1
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label K.

Accepted Answer

A)   Pleural cavity
B)   Visceral pericardium
C)   Mediastinum
D)   Parietal pericardium
E)   Epicardium

Question 11

Because cardiac muscles are mechanically, chemically, and electrically connected to one another, cardiac muscle tissue functions like a single enormous muscle cell. For this reason, it is called a functional ________.

Accepted Answer

A)   sulcus
B)   inclusion
C)   syncytium
D)   intercalation
E)   triad

Question 12

The ________ are a series of irregular muscular folds formed on the internal surface of the ventricles.

Accepted Answer

A)   trabeculae carneae
B)   papillary muscles
C)   chordae tendineae
D)   moderator bands
E)   pectinate muscles

Question 13

Figure 21.1
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label A.

Accepted Answer

A)   Trachea
B)   Esophagus
C)   Pharynx
D)   Larynx
E)   Glottis

Question 14

Which vessel delivers venous blood from the tissues and organs of the abdominal and pelvic cavities, and from the lower limbs?

Accepted Answer

A)   coronary veins
B)   pulmonary trunk
C)   superior vena cava
D)   fossa ovalis
E)   inferior vena cava

Question 15

Cardiac muscle cells obtain energy almost exclusively through ________.

Accepted Answer

A)   anaerobic pathways
B)   aerobic respiration
C)   glycolysis
D)   the Krebs cycle
E)   protein reserves

Question 16

Figure 21.2
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label L.

Accepted Answer

A)   Aorta
B)   Superior vena cava
C)   Pulmonary trunk
D)   Pulmonary vein
E)   Brachiocephalic trunk

Question 17

Figure 21.5
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label F.

Accepted Answer

A)   Purkinje fiber
B)   Left bundle branch
C)   Internodal pathway
D)   Right bundle branch
E)   Moderator band

Question 18

The rapidly depolarizing cells, called pacemaker cells, are found in the ________, which is embedded in the posterior wall of the right atrium.

Accepted Answer

A)   right bundle branch
B)   AV node
C)   left bundle branch
D)   intermodal pathways
E)   SA node

Question 19

Figure 21.4
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label I.

Accepted Answer

A)   Pectinate muscles
B)   Coronary sinus
C)   Papillary muscles
D)   Trabeculae carneae
E)   Chordae tendineae

Question 20

Figure 21.2
  
Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label F.

Accepted Answer

A)   Coronary sulcus
B)   Interventricular sulcus
C)   Ventricle
D)   Ligamentum arteriosum
E)   Atrium

Exam 21: The Cardiovascular System: The Heart

Figure 21.3 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label F.

Norepinephrine release produces an increase in both the heart rate and force of contraction through the stimulation of beta receptors on nodal cells and contractile cells.

Which of the following is a function of the cardiac skeleton of the heart?

Figure 21.5 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label A.

________ is the term used to indicate a heart rate that is slower than normal.

Figure 21.1 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label N.

Which branch(es) of the right coronary artery extends toward the apex along the anterior surface of the right ventricle of the heart?

________ release produces a decrease in both the heart rate and force of contraction through the stimulation of muscarinic receptors on nodal cells and contractile cells.

Figure 21.2 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label B.

Figure 21.1 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label K.

Because cardiac muscles are mechanically, chemically, and electrically connected to one another, cardiac muscle tissue functions like a single enormous muscle cell. For this reason, it is called a functional ________.

The ________ are a series of irregular muscular folds formed on the internal surface of the ventricles.

Figure 21.1 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label A.

Which vessel delivers venous blood from the tissues and organs of the abdominal and pelvic cavities, and from the lower limbs?

Cardiac muscle cells obtain energy almost exclusively through ________.

Figure 21.2 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label L.

Figure 21.5 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label F.

The rapidly depolarizing cells, called pacemaker cells, are found in the ________, which is embedded in the posterior wall of the right atrium.

Figure 21.4 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label I.

Figure 21.2 Using the above figure, identify the labeled structure(s) in each of the following questions. -Identify the structure(s) indicated by Label F.