77. The type of feedback that estrogen and progesterone are exerting on the gonadotropins after month 1 in this figure is ________________ and after month 2, _______________ is secreting these two hormones. A. Positive ; growing fetus B. Positive ; placenta C. Positive ; corpus luteum D. Negative ; growing fetus E. Negative ; corpus luteum F. Negative ; placenta
77. The type of feedback that estrogen and progesterone are exerting on the gonadotropins after month 1 in this figure is ________________ and after month 2, _______________ is secreting these two hormones. A. Positive ; growing fetus B. Positive ; placenta C. Positive ; corpus luteum D. Negative ; growing fetus E. Negative ; corpus luteum F. Negative ; placenta
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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77. The type of feedback that estrogen and progesterone are exerting on the gonadotropins after month 1 in this figure is ________________ and after month 2, _______________ is secreting these two hormones.
A. Positive ; growing fetus
B. Positive ; placenta
C. Positive ; corpus luteum
D. Negative ; growing fetus
E. Negative ; corpus luteum
F. Negative ; placenta
Transcribed Image Text:Copyright © McGraw-Hill Education. Permission required for reproduction or display.
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Human chorionic gonadotropin
Progesterone
Estrogen
0 1 2
4
7
8
9
10
Months after beginning of last menstruation
Maternal concentrations
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