Seven pairs of ribs articulate directly via costal cartilages with the sternum.

To what region of the vertebral column does this vertebra belong?

The number of egg cells that ultimately form from a primary oocyte undergoing meiosis is ________.

Multi-select (you must choose 2, 3 or 4 answers).  During the alarm stage of the stress response, sympathetic impulses:

The heart produces natriuretic peptides (ANP & BNP) to stimulate Na+ secretion in the urine.

Aldosterone promotes the homeostasis of ions by causing the kidneys to_________.

The thymus gland secretes hormones called_________ that_________.

The ________ is a layer of glycoproteins that forms between the oocyte and granulosa cells.

Compared to the nervous system, the endocrine system_________.

In the reproductive cycle, estrogens__________, whereas progesterone__________.