Which of the following is not a paranasal sinus?
A. Sphenoidal
B. Maxillary
C. Temporal
D. Frontal
E. Ethmoidal
Answer: C
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In the blastocyst, the ________ is destined to become the __________
a. trophoblast; fetus b. trophoblast; fetal portion of the placenta c. trophoblast; inner cell mass d. blastocoele; digestive system, lungs, and kidneys for the fetus e. blastocoele; fetus
Identify the embryonic germ layers. (Check all that apply.)
A. Epiderm B. Mesoderm C. Ectodem D. Endoderm E. Exoderm
The heart is confined within a double-walled serous membrane sac. The part of the membrane that is in contact with the heart is the ________ layer.
A. serous B. visceral C. synovial D. parietal E. mesothelial
Which of the following is NOT an effect of pregnancy on the mother?
A. Increase in weight B. Increase in constipation and heartburn C. Increase in blood volume from 5 liters to 7 liters D. Decrease in vital capacity