Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN:9781337794909
Author:Des Jardins, Terry.
Publisher:Des Jardins, Terry.
Chapter10: Fetal Development And The Cardiopulmonary System
Section: Chapter Questions
Problem 9RQ: In the fetal circulation, once blood enters the right atrium, most of the blood enters the left...
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Question
Transcribed Image Text:45. Which of the following forms the margin of a physiologic communication between the right and left atria before birth?
O A) Crista supraventricularis (supraventricular crest)
O B) Crista terminalis
C) Pars membranacea (of the interventricular septum)
OD) Septum secundum
O E) Truncal ridge
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