Oocytes are viable for _____ post-ovulation.

Cardiac muscle contains _____ that anchor cardiac cells together and encourage the movement of ions across the membrane. 

The chorion:

Please the following structures/vessels in order beginning with the left ventricle. 

Mammary glands:

Pregnant females usually experience an increase in blood volume, blood pressure, and body temperature due to _____.

Which of the following types of white blood cells kills parasitic worms; destroys antibody complexes; and inactivates some inflammatory chemicals of allergy?

The endoderm:

Cretinism involves:

In order for the thyroid gland to efficiently produce thyroid hormone (TH) the human body must have adequate amounts of _____.