Which of the following organs may be directly affected by malrotation of the caudal limb of the primary intestinal loop?
(A) Descending colon
(B) Stomach
(C) Spleen
(D) Fourth part of the duodenum
(E) Ascending colon
Ans: (E) Ascending colon
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The esophagus is in the gastrointestinal system.
Answer the following statement true (T) or false (F)
Which of the following will become the primary structure for exchange of material between the mother and the fetus?
a) Chorionic villi of the placenta b) Amnion c) Amnionic fluid d) Embryonic disc e) Endoderm
The outermost extraembryonic membrane that eventually helps form the placenta is the
A. amnion. B. chorion. C. yolk sac. D. hypoblast.
Transcription factors are proteins whose binding to the ________ region for a gene can ________ (increase) or ________ (decrease) expression of that gene.
Fill in the blank(s) with the appropriate word(s).