A membrane fusion event that releases enzymes from the head of the sperm to facilitate fertilization. ACTH Adrenocorticotropic hormone - a peptide hormone secreted from the anterior pituitary that stimulates secretion of glucocorticoids from the adrenal glands . Having a short and relatively severe course. Addisons disease An endocrine disease resulting from a deficiency of adrenal steroids, particularly aldosterone . An enzyme and integral membrane protein that converts ATP to cyclic AMP .
Adipose tissue is composed predominantly of adipocytes.
A pair of hormone-producing organs located near the kidneys. A peptide hormone secreted from the anterior pituitary that stimulates secretion of glucocorticoids from the adrenal glands . The opposite of antagonist. A steroid hormone produced by the adrenal cortex that participates in control of sodium, potassium and water balance. A type of cell in the endocrine pancreas that secretes the hormone glucagon .