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Chapter 1: Anatomy of the Cardiovascular and Pulmonary Systems
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b9 Test Bank
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MULTIPLE CHOICE b9
1. Which of the following chest wall structures is located level with the second costal
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cartilage anteriorly and thoracic vertebra T4 and T5 posteriorly?
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A. Sternal angle b9
B. Jugular notch b9
C. Xiphoid process b9
D. Third costal cartilage b9 b9
ANS: A b 9 b 9
The sternal angle of the “angle of Louis” is level with the second costal cartilage anteriorly
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and thoracic vertebrae T4 and T5 posteriorly.
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PTS: 1
2. Pectus excuvatum is BEST described as:
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A. Deformity of the sternum caused by trauma b9 b9 b9 b9 b9 b9
B. Caved-in appearance of the chest b9 b9 b9 b9
C. Diminished rib angle anteriorly b9 b9 b9
D. Conical shape of the thoracic cage b9 b9 b9 b9 b9
ANS: B b 9 b 9
Pectus excuvatum is a common congenital deformity of the anterior wall of the chest, in
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which several ribs and the sternum grow abnormally; it produces a caved-in or sunken
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appearance of the chest.
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PTS: 1
3. The true ribs are BEST defined by which of the following statements?
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A. Vertebrochondral ribs b9
B. Vertebrosternal ribs b9
C. Ribs 11 and 12 b9 b9 b9
D. Ribs 8, 9, and 10 b9 b9 b9 b9
ANS: B b 9 b 9
The first seven ribs attach via their costal cartilages to the sternum and are called the true
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ribs (also known as the vertebrosternal ribs).
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PTS: 1
, Test Bank b9 1-2
4. Which of the following interventions is MOST appropriate for a patient with lower rib
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fractures?
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A. Short, shallow breaths b9 b9
B. Pursed lip breathing b9 b9
C. Deep breaths with splinting b9 b9 b9
D. Breathing with arms raised b9 b9 b9
ANS: C b 9 b 9
It is important for all therapists to recommend breathing (deep breathing), splinting (i.e.,
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pillow), and coughing strategies for patients with rib fractures.
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PTS: 1
5. Which of the following positions facilitates greater excursion of both hemidiaphragms at rest?
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A. Supine position b9
B. Sidelying position b9
C. Standing position b9
D. Sitting position b9
ANS: A b 9 b 9
In the supine position, without the effects of gravity, the level of the diaphragm in the
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thoracic cavity rises. This allows for a relatively greater excursion.
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PTS: 1
6. Which of the following muscles help to achieve the active process of inspiration at rest?
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A. Sternocleidomastoid
B. Diaphragm
C. Abdominal muscles b9
D. Trapezius
ANS: B b 9 b 9
The diaphragm and internal intercostals (intercartilaginous portion) are the essential muscles
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to achieve the active process of inspiration at rest. Abdominal muscles assist with
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expiration. The sternocleidomastoid and trapezius are accessory muscles and assist with a
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more forceful inspiration.
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PTS: 1
7. Which of the following accessory muscles of ventilation function to elevate and fix the
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first and second ribs?
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A. Sternocleidomastoid muscle b9
B. Serratus anterior b9
C. Latissimus dorsi b9
D. Scalene muscle b9
b9 ANS: b 9 D
, Test Bank b9 1-3
The scalene muscles lie deep to the sternocleidomastoid, but may be palpated in the
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posterior triangle of the neck. These muscles function as a unit to elevate and fix the first
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and second ribs. The sternocleidomastoid muscle elevates the sternum.
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PTS: 1
8. When the arms and shoulders are fixed, by leaning on the elbows or grasping onto a
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table, this muscle can use its insertion as its origin and facilitate an increase in the A-P
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diameter of the thorax.
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A. Upper trapezius b9
B. Pectoralis major b9
C. Sternocleidomastoid
D. Serratus anterior b9
ANS: B b 9 b 9
When the insertion and origin of the pectoralis muscle are reversed by leaning on a table
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to fix the arms, the muscle will pull on the anterior chest wall, lifting the ribs and
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sternum to increase the A-P diameter of the thoracic cage.
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PTS: 1
9. The serous fluid within the pleural space serves to provide which of the following functions?
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A. Create a constant negative pressure
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B. Assist with venous return of blood to the heart
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C. Reduce friction between the lungs and thoracic wall
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D. Serve to allow separation of the pleural layers
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ANS: C b 9 b 9
The serous fluid within the pleural space serves to hold the pleural layers together during
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ventilation and reduce friction between the lungs and the thoracic wall. The space creates
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the negative pressure to maintain lung inflation, not the fluid itself.
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PTS: 1
10. Irritation of the phrenic supplied pleura results in which of the following pain referral
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patterns?
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A. Thoracic wall b9
B. Abdominal wall b9
C. Mediasternal region b9
D. Lower neck and shoulder b9 b9 b9
ANS: D b 9 b 9
Irritation of the phrenic supplied pleura can result in referred pain in the lower neck and
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shoulder, whereas, irritation of the intercostally innervated pleura may result in referral of
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pain to the thoracic or abdominal wall.
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PTS: 1
11. An abnormal pleural friction rub on auscultation BEST indicates which of the following?
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A. Infection with a resultant inflammatory response within the pleura
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