At the level of the first rib, the axillary vein becomes the ________ vein.
A) cephalic
B) azygos
C) subclavian
D) innominate
E) external jugular
Question 2
The period of gestation when organs and organ systems complete most of their development and the fetus looks distinctly human is the ________ trimester.
A) first
B) second
C) third