Deck 5: Thorax

Question 1

The descending aorta is in the right posterior mediastinum.

Answer 1

False

Question 2

The pectoralis major and minor and subclavius muscles are part of the posterior thoracic region group of muscles.

Answer 2

False

Question 3

The vessel associated with the left ventricle is the aorta.

Answer 3

True

Question 4

The pectoralis major and minor and subclavius muscles are part of the anterior thoracic region group of muscles.

Question 5

The pectoralis major and minor and subclavius muscles are part of the lateral thoracic region group of muscles.

Question 6

The chamber of the heart forming the apex is the right atrium.

Question 7

The coronary sinus drains into the right atrium via the thebesian valve.

Question 8

The chamber of the heart forming the apex is the left ventricle.

Question 9

The left lung is shorter than the right.

Question 10

The carina is located at T3/T4.

Question 11

The only muscle in the lateral thoracic region is the serratus anterior.

Question 12

The internal and external intercostal muscles run parallel to each other.

Question 13

A vessel associated with the left atrium is the coronary sinus.

Question 14

The azygos and hemizygos veins are a continuation of the right and left ascending lumbar veins.

Question 15

The carina is at the location of the bifurcation of the trachea into the right and left primary bronchi.

Question 16

The azygos vein empties directly into the right atrium.

Question 17

The mitral valve is situated between the left atrium and left ventricle.

Question 18

The thickest myocardium is in the left ventricle.

Question 19

The root of each lung enters through the cardiac notch.

Question 20

The most anterior chamber of the heart is the right ventricle.

Question 21

The aortic arch sweeps from right to left in a posterior direction.

Question 22

The layer of pleura in direct contact with the lungs is the visceral layer.

Question 23

The trapezius, levator scapulae, rhomboid minor and major, serratus posterior superior and inferior, splenius capitis, and colli are all muscles in the posterior thoracic region.

Question 24

The vessels merging to form the SVC are the right and left subclavian veins.

Question 25

An alternative term for the tricuspid valve is mitral valve.

Question 26

The bicuspid valve is situated between the left atrium and left ventricle.

Question 27

The chamber of the heart forming the apex is the left atrium.

Question 28

The most posterior chamber of the heart is the left ventricle.

Question 29

The vessels associated with the right atrium are the pulmonary veins.

Question 30

The apex of the heart projects posteriorly and to the right.

Question 31

Muscles of the thorax include the internal and external intercostal and diaphragm.

Question 32

The outermost lining of the heart is the fibrous pericardium.

Question 33

The right lung has two lobes, and the left lung has three lobes.

Question 34

The innermost lining of the chambers of the heart is the epicardium.

Question 35

Which is not seen on axial images below the level of the right atrium?

A)IVC
B)esophagus
C)descending aorta
D)SVC

Question 36

The left hemidiaphragm is usually higher than the right.

Question 37

The vessel associated with the right ventricle is the pulmonary trunk.

Question 38

The portion of the sternum first seen on CT axial images arranged in descending order is the manubrium.

Question 39

The chamber of the heart forming the apex is the right ventricle.

Question 40

The epicardium is the visceral layer of the serous pericardium.

Question 41

The bony thorax does not include the

A)sternum.
B)ribs.
C)clavicle.
D)scapula.
E)All of the above are included.

Question 42

The number of secondary left bronchi is

A)1.
B)2.
C)3.
D)4.

Question 43

Which portion of the aorta is wider?

A)ascending
B)descending
C)They are similar in size.

Question 44

The capillaries of the pulmonary circulatory system

A)deposit carbon dioxide into the alveoli.
B)receive oxygen from the alveoli.
C)surround the alveoli.
D)All of the above

Question 45

The trapezius, levator scapulae, rhomboid minor and major, serratus posterior superior and inferior, and splenius capitis and colli are all part of which group?

A)anterior thoracic
B)lateral thoracic
C)posterior thoracic
D)muscles of the thorax

Question 46

Which of the following is not a muscle in the posterior thoracic region?

A)trapezius
B)levator scapulae
C)rhomboid minor and major
D)serratus posterior superior and inferior
E)All of the above are muscles in the posterior thoracic region.

Question 47

Which ribs are floating ribs?

A)1-7
B)8-12
C)11-12
D)None of the above

Question 48

The opening of the pericardium

A)is at the apex of the heart.
B)adheres to the great vessels.
C)adheres to the diaphragm.
D)is composed of the endocardium.

Question 49

The pulmonary trunk divides into the

A)pulmonary veins.
B)pulmonary arteries.
C)right and left primary bronchi.
D)right and left brachiocephalic veins.

Question 50

The number of pairs of ribs articulating with the manubrium is

A)0.
B)1.
C)1.5.
D)2.
E)2.5.

Question 51

The aortic sinus

A)is the first branch off the ascending aorta.
B)gives rise to the right and left coronary arteries.
C)contains oxygenated blood.
D)All of the above

Question 52

The valve seen on sectional images separating the right atrium from the right ventricle is the

A)pulmonic semilunar.
B)tricuspid.
C)aortic semilunar.
D)mitral.
E)thebesian.

Question 53

The pectoralis major and minor and subclavius muscles are part of which group?

A)anterior thoracic
B)lateral thoracic
C)posterior thoracic
D)muscles of the thorax

Question 54

The number of secondary right bronchi is

A)1.
B)2.
C)3.
D)5.

Question 55

In the heart, the interatrial and interventricular septa

A)prevent blood exchange between the atria and ventricles.
B)allow blood to flow in only one direction between the atria and ventricles.
C)act as the pacemaker of the heart.
D)are the gatekeepers for the pulmonary and systemic circulatory systems.

Question 56

The vessel(s) associated with the left ventricle is/are the

A)pulmonary trunk.
B)SVC, IVC.
C)aorta.
D)pulmonary veins.

Question 57

Which of the following contains/contain oxygenated blood?

A)pulmonary trunk
B)pulmonary arteries
C)pulmonary veins
D)brachiocephalic veins
E)SVC

Question 58

The aortic arch sweeps

A)from right to left in a posterior direction.
B)from left to right in a posterior direction.
C)from right to left in an anterior direction.
D)from left to right in an anterior direction.

Question 59

The gladiolus is an alternative term for the

A)manubrium.
B)body of the manubrium.
C)xiphoid process.
D)ensiform process.

Question 60

Which statement regarding the ascending aorta is not true?

A)It arises from the superior left ventricle.
B)It is seen on all cuts of the mediastinum.
C)The aortic sinus is an immediate branch off it.
D)All of the above statements are true.

Question 61

Which statement regarding the IVC is not true?

A)It drains all the deoxygenated blood from below the level of the heart.
B)It is formed at L5.
C)It is formed by the union of the right and left common iliac veins.
D)It empties into the right atrium.

Question 62

The vessel(s) associated with the right atrium is/are the

A)pulmonary trunk.
B)SVC, IVC, and coronary sinus.
C)aorta.
D)pulmonary veins.

Question 63

Which statement regarding the hila of the lungs is not true?

A)The right hilum is slightly superior to the left.
B)The hila are found on the medial lungs.
C)The roots of the lungs enter and exit the hila of the lungs.
D)None of the above statements is true.
E)All of the above statements are true.

Question 64

The coronary arteries are branches off the

A)pulmonary trunk.
B)descending aorta.
C)arch of the aorta.
D)ascending aorta.
E)None of the above

Question 65

The systemic circulatory system

A)begins at the left ventricle.
B)is responsible for distributing blood to the entire body.
C)ends at the right atrium.
D)All of the above

Question 66

The pulmonary veins

A)contain deoxygenated blood.
B)leave the hilum at a slightly lower level than the bronchi and pulmonary arteries.
C)are considered part of the systemic circulatory system.
D)All of the above

Question 67

The most superior aspect of the sternum is the

A)ensiform process.
B)body.
C)xiphoid process.
D)manubrium.

Question 68

The thickest myocardium is in the

A)right atrium.
B)right ventricle.
C)left atrium.
D)left ventricle.

Question 69

The vessel(s) associated with the right ventricle is/are the

A)pulmonary trunk.
B)SVC, IVC.
C)aorta.
D)pulmonary veins.

Question 70

The number of pairs ribs articulating with the xiphoid process is

A)0.
B)1.5.
C)2.
D)2.5.

Question 71

The function of valves in the heart is to

A)permit blood to flow in either direction.
B)permit alternating flow of blood forward and backward.
C)prevent backflow.
D)act as a pacemaker.

Question 72

Which chamber of the heart forms the apex?

A)right atrium
B)right ventricle
C)left atrium
D)left ventricle

Question 73

The most anterior chamber of the heart is the

A)right atrium.
B)right ventricle.
C)left atrium.
D)left ventricle.

Question 74

The most posterior chamber of the heart is the

A)right atrium.
B)right ventricle.
C)left atrium.
D)left ventricle.

Question 75

Which is not in the mediastinum?

A)great vessels
B)esophagus
C)thymus
D)trachea
E)All of the above are in the mediastinum.

Question 76

The hilum of the left lung

A)is higher than the hilum of the right lung.
B)is lower than the hilum of the right lung.
C)Both hila are at the same level.

Question 77

The vessel central to the four chambers of the heart on axial CT images is the

A)SVC.
B)ascending aorta.
C)pulmonary trunk.
D)IVC.

Question 78

The jugular notch is

A)where the manubrium meets the sternal body.
B)where the clavicles articulate with the manubrium.
C)where the ribs articulate with the sternum.
D)on the superior manubrium.

Question 79

The vessel draining the deoxygenated blood from the heart itself is the

A)SVC.
B)IVC.
C)aortic sinus.
D)coronary sinus.

Question 80

The thymus is located posterior to the

A)manubrium of the sternum.
B)body of the sternum.
C)xiphoid process of the sternum.
D)None of the above; the thymus is anterior to the thyroid gland.