There are three muscles located in the anterior compartment of the upper arm â biceps brachii, coracobrachialis and brachialis. They are all innervated by the musculocutaneous nerve. A good memory aid for this is BBC â biceps, brachialis, coracobrachialis.
Calcitonin is a hormone secreted by the thyroid gland that reduces the concentration of blood calcium level when it has risen to an above normal level. This polypeptide hormone is made up of 32 amino acids and is produced mainly by the parafollicular cells (also known as C cells) of the thyroid gland.
thyroid hormone that lowers the levels of calcium in the blood by causing more calcium do be deposited in the bones and causing the kidneys to reabsorb less calcium from the urine pth hormone that raises blood calcium levels by stimulating the release of calcium by bones and increasing the uptake of calcium by the kidneys and small intestine