Release of prostacylin (PGI2) by endothelial cells to inhibit blood clotting is an example of what type of hormone secretion?

Target organ is the anterior pituitary

Also known as thyroxine

Decreased urine production

Secretes erythropoietin

Indentation of the right atrium, formerly the opening between the right and left atria

Collects deoxygenated blood from the heart

Most significant factor in determining the thickness of the heart wall

Can be seen from the anterior of the sheep heart

Open and close heart valves