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50 Cards in this Set
- Front
- Back
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1. Oxygenated blood from the placenta is transported to the embryo in the:
A. left umbilical artery B. right umbilical artery C. both D. neither |
D. neither
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2. The ductus venosus shunts blood from the:
A. hepatic portal vein to the inferior vena cava B. inferior vena cava to the umbilical vein C. hepatic sinusoids to the inferior vena cava D. umbilical vein to the inferior vena cava |
D. umbilical vein to the inferior vena cava
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3. After birth, functional closure of the foramen ovale is due to pressure changes in the atria.
A. true B. false |
A. true
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4. During development, the ductus arteriosus allows blood to bypass the:
A. liver B. lungs C. both D. neither |
B. lungs
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5. Structures of the embryonic heart are divided into left and right by the:
A. endocardial cushions B. septum primum C. both D. neither |
C. both
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6. The foramen secundum forms within septum:
A. primum B. secundum C. both D. neither |
A. primum
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7. The primitive endocardial heart tubes form within the:
A. ectoderm B. endoderm C. mesoderm |
C. mesoderm
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8. The trabeculated portion of the right ventricle is derived from the:
A. proximal portion of the bulbus cordis B. primitive ventricle C. both D. neither |
B. primitive ventricle
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9. The most common cause of congenital cyanotic heart disease is transpostion of the great vessels.
A. true B. false |
A. true
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10. Disruption of the endocardial cushions can result in:
A. atrial septal defect B. ventricular septal defect C. both D. neither |
C. both
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11. Unequal division of the truncus arteriosus results in a ventricular septal defect.
A. true B. false |
A. true
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12. In the tetralogy of Fallot, there is always an:
A. orverriding aorta B. atrial septal defect C. both D. neither |
A. orverriding aorta
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13. A persistent truncus arteriosus results in a:
A. single vessel draining both ventricles B. ventricular septal defect C. both D. neither |
C. both
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14. Which of the following is not true of the sinus venosus?
A. it is fixed in place by the septum transversum. B. it becomes incorporated in the wall of the left atrium. C. both are true D. both are false |
B. it becomes incorporated in the wall of the left atrium.
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15. The root of the great vessels arising from the heart is derived from the:
A. ductus arteriosus B. bulboventricular loop C. truncus arteriosus D. bulbus cordis |
C. truncus arteriosus
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16. The formation of the bulboventricular loop causes the ____ to lie dorsal to the ____.
A. ventricle, atrium B. bulbus cordis, sinus venosus C. atrium, sinus venosus D. atrium, truncus arteriosus |
D. atrium, truncus arteriosus
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17. Septum secundum forms in the ___ atrium.
A. left B. right |
B. right
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18. Which of the following contribute to the formation of the left atrium?
A. left horn of the sinus venosus B. primitive atrium C. both D. neither |
B. primitive atrium
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19. A patent foramen ovale may be due to a defect in septum:
A. primum B. secundum C. either D. neither |
C. either
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20. The most common ventricular septal defects are found in the _____ septum.
A. membranous B. muscular C. both occur with equal frequency |
A. membranous
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21. Collateral circulation normally develops in the presence of a _____ coarctation of the aorta.
A. preductal B. postductal C. both D. neither |
B. postductal
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22. Failure of the aorticopulmonary septum to spiral results in the defect known as:
A. Tetralogy of Fallot B. persistent truncus arteriosus C. coarctation of the aorta D. transposition of the great vessels |
D. transposition of the great vessels
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23. The vitelline arteries develop into vessels associated with the:
A. kidneys B. gut C. both D. neither |
B. gut
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24. The ___ recurrent laryngeal nerve recurs around the ductus arteriosus.
A. left B. right |
A. left
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25. The aortic sac develops into the:
A. brachiocephalic trunk B. arch of the aorta C. both D. neither |
C. both
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26. The intersegmental arteries contribute to the formation of the vertebral arteries.
A. true B. false |
A. true
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27. Complete closure of the ductus arteriosus after birth requires inflation of the lungs.
A. true B. false |
A. true
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28. Smooth muscle, cartilage and connective tissue of primary bronchi are derived from:
A. somatic mesoderm B. splanchnic mesoderm C. both D. neither |
B. splanchnic mesoderm
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29. The trachea is lined with PCCE derived from:
A. endoderm B. splanchnic mesoderm C. both D. neither |
A. endoderm
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30. The lobes of the lung are defined by the ____ bronchi.
A. primary B. secondary C. tertiary D. quartenary |
B. secondary
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31. Respiratory distress syndrome, seen in many premature infants is often associated with insufficient surfactant.
A. true B. false |
A. true
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32. Infants born before the development of alveoli are not viable.
A. true B. false |
A. true
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33. The primitive heart begins to beat by the end of week four.
A. true B. false |
A. true
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34. The developing pharyngeal arches anchor the _____ of the primitive heart tube.
A. sinus venosus B. ventricle C. bulbus cordis D. truncus arteriosus |
D. truncus arteriosus
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35. The endocardial cushions form in the dorsal and ventral walls of the:
A. sinus venosus B. ventricle C. bulbus cordis D. atrioventricular canal |
D. atrioventricular canal
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36. The muscular part of the interventricular septum forms between the primitive:
A. sinus venosus and atrium B. atrium and ventricle C. ventricle and bulbus cordis D. bulbus cordis and truncus arteriosus |
C. ventricle and bulbus cordis
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37. The right horn of the sinus venosus forms which of the following?
A. coronary sinus B. left atrium C. sinus venarum D. all of the above |
C. sinus venarum
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38. During fetal life blood passes directly from right atrium to left atrium.
A. true B. false |
A. true
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39. Which of the following normally follow a spiraling path as they develop?
A. septum primum B. endocardial cushions C. septum secundum D. truncal ridges |
D. truncal ridges
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40. The left horn of the sinus venosus develops into a structure that empties into the ____ atrium of the heart.
A. left B. right C. both D. neither |
B. right
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41. Failure of septum primum to fuse with the endocardial cushions results in a persistent foramen:
A. primum B. secundum C. ovale D. all of the above |
A. primum
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42. Which of the following contributes to the formation of the left subclavian artery?
A. arch 2 B. arch 3 C. arch 4 D. none of the above |
D. none of the above
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43. Aortic arch 4 contributes to the formation of the arch of the aorta.
A. true B. false |
A. true
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44. The pulmonary arteries are derived from arch:
A. 2 B. 3 C. 4 D. 6 |
D. 6
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45. Which of the following develop differently on the left and right side of the body.
A. aortic arch 1 B. aortic arch 2 C. aortic arch 3 D. aortic arch 4 |
D. aortic arch 4
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46. The ductus venosus is derived from arch:
A. 3 B. 4 C. 6 D. none of the above |
D. none of the above
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47. Which of the following contributes to the formation of the superior vena cava?
A. left anterior cardinal B. left posterior cardinal C. right common cardinal D. right posterior cardinal |
C. right common cardinal
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48. The ligamentum teres hepatis is a derivative of the:
A. umbilical vein B. umbilical artery C. vitelline vein D. ductus venosus |
A. umbilical vein
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49. The fetal left atrium is mainly derived from the:
A. primitive pulmonary vein. B. primitive atrium. C. sinus venarum. D. sinus venosus. |
A. primitive pulmonary vein.
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50. The remnant of the first aortic arch artery is:
A. stapedial artery. B. internal carotid artery. C. maxillary artery. D. common carotid artery. |
C. maxillary artery.
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