What is the ovarian structure labeled 7 in this image?

All of the following are regions of the small intestines except

In fetal circulation, the__________ bypasses the liver and the__________ bypasses the lungs.

Male infertility (sterility) refers to__________.

Which of the following hormones exerts its effect primarily upon the reproductive organs? 

To form a zygote, 

The two collecting ducts that drain the lymphatic trunks are the 

The secretion of the parathyroid hormone is controlled primarily by the 

All of the following are functions of the nose except

A primary function of lymphocytes is to