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Quiz

Module 3

Eric Suchanec 9 Fragen

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Fragen in diesem Quiz (9)

  1. 1Which is correct concerning the mediastinum?
    1. AThe trachea is only found in the inferior mediastinum.
    2. BThere are two brachiocephalic arteries but only one brachiocephalic vein.
    3. CThe left recurrent laryngeal nerve courses through the superior mediastinum, the right recurrent laryngeal nerve does not.
    4. DThe phrenic nerves course through the superior and posterior divisions of the mediastinum to reach the diaphragm.
    5. EParts of the aorta are found in the middle and posterior, but not in the superior subdivision of the mediastinum.
  2. 2Which is correct concerning the mediastinum?
    1. AThe narrow points of the esophagus are its origin from the pharynx in the neck and at the esophageal hiatus of the diaphragm.
    2. BThe arch of the aorta and the azygous vein arch over the right and the left main bronchus, respectively.
    3. CThe esophagus may be compressed by the right main bronchus.
    4. DThe vagus nerves innervate the smooth muscle of the esophagus and not the skeletal muscle of the esophagus.
    5. EThe esophagus may be compressed by the ascending aorta.
  3. 3Which is correct concerning the mediastinum?
    1. AThe esophagus courses through the superior and the middle mediastinum.
    2. BThe thymus or its remnants are found between the right brachiocephalic vein and the trachea.
    3. CThe heart chambers are found in the inferior mediastinum.
    4. DThere are three branches of the arch of the aorta, one on the right and two on the left.
    5. EThe trachea is posterior to the esophagus.
  4. 4Which is correct concerning the mediastinum?
    1. AThe thoracic duct courses through the posterior and superior mediastinum to drain into the origin of the right brachiocephalic vein.
    2. BThe thoracic duct drains all lymph from above the diaphragm.
    3. CThe azygous vein receives posterior intercostal veins from the left side of the thorax, and one or two hemiazygous veins from the right.
    4. DLymph from structures on the right side of the body above the diaphragm drain into the right lymphatic duct.
    5. EThe pulmonary veins course in the superior and middle mediastinum.
  5. 5Which is correct concerning the mediastinum?
    1. AThe right superior intercostal vein drains into the hemiazygous vein.
    2. BThe accessory hemiazygous vein drains intercostal spaces 9-12; the hemiazygous vein drains intercostal spaces 5-8.
    3. CThe phrenic nerves course posterior to the roots of the lung.
    4. DAnterior intercostal veins drain into a pair of internal thoracic veins.
    5. EThe vagus nerves course through the mediastinum anterior to the root of each lung.
  6. 6Which is correct concerning the diaphragm?
    1. AA single phrenic nerve innervates the diaphragm.
    2. BDuring active inspiration, abdominal muscles push up the diaphragm.
    3. CThe diaphragm descends when it contracts and elevates the lower ribs.
    4. DThe diaphragm consists of smooth muscle.
    5. EThe diaphragm is a secondary muscle of inspiration.
  7. 7Which is correct concerning the diaphragm and its innervation?
    1. AWhen the diaphragm contracts, the superior to inferior dimension of the thorax is decreased.
    2. BThe phrenic nerves that innervate the diaphragm consist of ventral rami from the C4, C5 and C6 spinal cord segments.
    3. CThe phrenic nerves and intercostal nerves provide the sensory innervation of the diaphragm.
    4. DIf a phrenic nerve is lesioned, the affected side of the diaphragm will descend during inspiration.
    5. EThe phrenic nerves contain only motor fibers.
  8. 8Which is correct about muscles of respiration?
    1. AThe external intercostal muscles are deep to the internal intercostal muscles.
    2. BThe ribs are immobile where they attach to the thoracic vertebrae.
    3. CThe internal intercostal muscle fibers are perpendicular to the innermost intercostal muscle fibers.
    4. DThere are two overlapping layers of intercostal muscles.
    5. EThe main mechanism of quiet expiration is elastic recoil of the rib cage.
  9. 9Which is correct about muscles of respiration?
    1. AThe anterior parts of the ribs elevate in a bucket handle fashion.
    2. BDuring active expiration, anterior abdominal muscles push down the diaphragm.
    3. CActive expiration utilizes the internal intercostal muscles to elevate the ribs.
    4. DThe sternum moves in a pump handle fashion to increase the transverse dimension of the thorax.
    5. EThe external and anterior fibers of internal intercostal muscles elevate the ribs and sternum for inspiration.

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Quiz am Module 3, erstellt von Eric Suchanec am 04/08/2022.
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