| http://www.w3.org/ns/prov#value | - See also circadian rhythm. ??? ??? ??? calcitonin A hormone secreted by the thyroid gland that lowers blood calcium levels by promoting calcium deposition in bone and calcium excretion from the kidneys; nonessential in adult humans. ??? ??? ??? catecholamine Any of a class of neurotransmitters and hormones, including the hormones epinephrine and norepinephrine, that are synthesized from the amino
|
