Deck 20: Anatomy of the Heart

Question 1

Identify the structure labeled "f."

A)Mitral (bicuspid)valve
B)Interventricular septum
C)Aorta
D)Tricuspid valve

Answer 1

A

Question 2

How is backflow of blood from the right ventricle into the right atrium prevented?

A)Tricuspid valve
B)Trabeculae carneae
C)Mitral valve
D)Aortic semilunar valve

Answer 2

A

Question 3

What term describes the "heart strings?"

A)Valves
B)Trabeculae carneae
C)Pectinate muscles
D)Chordae tendineae

Answer 3

D

Question 4

Which is another term for the visceral pericardium?

A)Pericardium
B)Endocardium
C)Myocardium
D)Epicardium

Question 5

Identify the structure labeled "c."

A)Tricuspid valve
B)Aortic semilunar valve
C)Bicuspid (mitral)valve
D)Pulmonary semilunar valve

Question 6

How is the base of the heart different from the apex of the heart?

A)The great vessels are located at the apex.
B)The superior tip is the apex.
C)The great vessels are located on the base.
D)The inferior tip is the base.

Question 7

Which vessel is part of the coronary circulation?

A)Circumflex artery
B)Inferior vena cava
C)Pulmonary artery
D)Pulmonary vein

Question 8

Identify the structure on the micrograph labeled "c."

A)Intercalated disc
B)Striation
C)Cardiac muscle fiber
D)Nucleus

Question 9

Identify the structure labeled "e."

A)Fossa ovalis
B)Interventricular septum
C)Ligamentum arteriosum
D)Papillary muscle

Question 10

Which structure is a remnant of the foramen ovale?

A)Ligamentum arteriosum
B)Tricuspid valve
C)Fossa ovalis
D)Aortic semilunar valve

Question 11

Identify the structure labeled "g."

A)Right ventricle
B)Left ventricle
C)Right atrium
D)Left atrium

Question 12

Identify the structures on the micrograph labeled "a."

A)Cardiac muscle fibers
B)Intercalated discs
C)Striations
D)Nuclei

Question 13

Identify the structure labeled "f."

A)Inferior vena cava
B)Tricuspid valve
C)Superior vena cava
D)Right ventricle

Question 14

Identify the structure labeled "j."

A)Left atrium
B)Aortic semilunar valve
C)Aorta
D)Mitral (bicuspid)valve

Question 15

When dissecting a mammalian heart, what should be your first cut?

A)Frontal/coronal section
B)Oblique section
C)Sagittal section
D)Transverse section

Question 16

Through which vessel is deoxygenated blood returned to the heart?

A)Pulmonary artery
B)Aorta
C)Superior vena cava
D)Pulmonary vein

Question 17

Identify the structure labeled "l."

A)Left ventricle
B)Superior vena cava
C)Right ventricle
D)Right atrium

Question 18

Which structure separates the right and left ventricles?

A)Chordae tendineae
B)Right ventricle
C)Right atrium
D)Interventricular septum

Question 19

What structure receives blood from the venae cavae?

A)Right ventricle
B)Left atrium
C)Left ventricle
D)Right atrium

Question 20

Identify the structure labeled "g."

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

Question 21

If a drop of blood is located in aorta and needs to go to the infero-anterior apex of the heart, what vessel will it pass through next?

A)Pulmonary artery
B)Posterior interventricular artery
C)Right coronary artery
D)Left coronary artery

Question 22

The visceral pericardium is most closely associated with which of the following?

A)Epicardium
B)Parietal pericardium
C)Fibrous pericardium
D)Endocardium

Question 23

Which of the following vessels delivers oxygen-poor blood to the lungs?

A)Pulmonary Arteries
B)Pulmonary veins
C)Aorta
D)Superior and inferior venae cavae

Question 24

Blood in the pulmonary veins is ________.

A)oxygenated
B)entering the heart and going to the lungs
C)leaving the heart to go to the systemic circuit
D)deoxygenated

Question 25

Of the coronary vessels listed, which one receives blood first?

A)Right coronary artery
B)Marginal artery
C)Circumflex artery
D)Anterior interventricular artery

Question 26

If a drop of blood is located in the left ventricle, through what structure will it next pass?

A)Bicuspid valve
B)Aortic semilunar valve
C)Pulmonary trunk
D)Aorta.

Question 27

Of the systemic vessels listed, which one receives blood last?

A)Abdominal aorta
B)Ascending aorta
C)Thoracic aorta
D)Aortic arch

Question 28

Which is a good description of cardiac muscle fibers?

A)Long, rectangular-shaped cells with multiple nuclei
B)Branched, multinucleate cells with striations
C)Long, spindle-shaped cells with intercalated discs
D)Branched, uninucleate cells with intercalated discs

Question 29

Predict what would happen to cardiac muscle cells if desmosomes were not present in intercalated discs.

A)The cells would pull apart with each contraction.
B)The cells would be unable to contract.
C)They would not be able to move materials between cells.
D)The cardiac muscle cells would not be able to contract as a unit.

Question 30

Which is the function of an intercalated disc?

A)Contains gap junctions that allow rapid communication between cells
B)Contains both desmosomes for tensile strength and gap junctions for communication
C)Uses desmosomes to hold cells together
D)Uses tight junctions to snap cells together for great tensile strength

Question 31

What causes striations in the cardiac muscle cells?

A)The overlapping of the actin and myosin proteins of the myofilaments
B)The abundance of mitochondria
C)The presence of myofibril contractile organelles
D)The presence of the intercalated discs