What extends from the pelvis into the medulla?

The hormone responsible for the powerful contractions of the uterus during childbirth is ______________________.

Absorption is best described as the __________________________.

Which hormone is responsible for milk production?

From what do both lanugo and vernix caseosa protect the fetus?

The pulmonary circuit involves blood flow from the heart to the _____________________________.

The cusps of the atrioventricular valves attach directly to _________________________________.

Steroid hormones are made from __________________________.

The mucosa of the carina (last cartilaginous ring of the trachea,) contains sensory receptors that trigger:

All red blood cells in an adult originate in the _____________________________-.