A 32-year-old woman delivered a large (4800 g) baby vaginally after some difficulty with her labor. Her prenatal course was complicated by diabetes, which occurred during pregnancy. At delivery, the infant’s head emerged, but the shoulders were “stuck” behind the maternal symphysis pubis, requiring the obstetrician to apply some effort and maneuvers to free up the infant’s shoulders and complete the delivery. The infant was noted to have a good cry and pink color but was not moving its right arm. What is the likely anatomical mechanism for this disorder?
A 32-year-old woman delivered a large (4800 g) baby vaginally after some difficulty with her labor. Her prenatal course was complicated by diabetes, which occurred during pregnancy. At delivery, the infant’s head emerged, but the shoulders were “stuck” behind the maternal symphysis pubis, requiring the obstetrician to apply some effort and maneuvers to free up the infant’s shoulders and complete the delivery. The infant was noted to have a good cry and pink color but was not moving its right arm. What is the likely anatomical mechanism for this disorder?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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A 32-year-old woman delivered a large (4800 g) baby vaginally after some
difficulty with her labor. Her prenatal course was complicated by diabetes, which
occurred during pregnancy. At delivery, the infant’s head emerged, but the
shoulders were “stuck” behind the maternal symphysis pubis, requiring the
obstetrician to apply some effort and maneuvers to free up the infant’s shoulders
and complete the delivery. The infant was noted to have a good cry and pink color
but was not moving its right arm.
What is the likely anatomical mechanism for this disorder?
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