Some Hormones That Use the Adenylyl CyclasecAMP Second Messenger System

Adrenocorticotropic hormone (ACTH) Angiotensin II (epithelial cells) Calcitonin

Catecholamines (ß receptors) Corticotropin-releasing hormone (CRH) Follicle-stimulating hormone (FSH) Glucagon

Human chorionic gonadotropin (HCG) Luteinizing hormone (LH) Parathyroid hormone (PTH) Secretin Somatostatin

Thyroid-stimulating hormone (TSH) Vasopressin (V2 receptor, epithelial cells)

cAMP is not the only second messenger used by the different hormones. Two other especially important ones are (1) calcium ions and associated calmodulin and (2) products of membrane phospholipid breakdown.

Extracellular fluid

Hormone

Extracellular fluid

Hormone

Hb 2

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