The large vessels that return blood to the heart are called
A) arteries.
B) arterioles.
C) capillaries.
D) venules.
E) veins.
Question 2
The pituitary hormone that stimulates the interstitial endocrine cells to secrete testosterone is
A) FSH.
B) LH.
C) ACTH.
D) GnRH.
E) GH.