Parathyroid hormone affects the ________.

A) bones, heart, and blood
B) kidney, liver, and spleen
C) intestine, kidneys, and bone
D) liver, stomach, and small intestine
E) stomach, pancreas, and bone

Parathyroid Hormone

A hormone secreted by the parathyroid glands that regulates calcium levels in the blood, critical for maintaining bone health and function.

Kidney

An organ in vertebrates that filters waste products from the blood, regulates blood pressure, electrolyte balance, and red blood cell production.

Liver

Largest gland of the body, lying in the upper-right quadrant of the abdomen just inferior to the diaphragm; secretes bile and is of great importance in carbohydrate and protein metabolism and in detoxifying chemicals.