Hormones Flashcards
Thyrotropin
Thyroid stimulating hormone (TSH)
Somatotropin
Growth Hormone (GH)
Corticotropin
Adrenocorticotropic hormone (ACTH)
Folliculotropin
Follicle stimulating hormone (FSH)
Luteotropin
Luteinizing hormone (LH)
Prolactin
PRL
Gonadotropic
FSH and LH
Glucagon
Origin: Alpha cells of the Pancreacs (islets of Langerhans)
Stimulus for Release: Lowering of blood sugar levels
TT: the Liver
Response for Stimulus: Raises blood sugar levels
Corticotropin (ACTH)
Origin: Anterior Pituitary (Andeohypophsis)
Stimulus for Release: CRH (Coritotripin Releasing Hormone)
TT: Adrenal Cortex
Response for Stimulus: Glucocortico
Aldosterone
Origin: Adrenal Cortex
Stimulus for Release: Ionic in balance (ACTH)
TT: Kidneys
Response for Stimulus: retains Na and water; removes K.
Oxytocin
Origin: Posterior Pituitary (Neurohypophysis)
Stimulus for Release: Baby in birth canal
TT: Uterus / Corpus Lutem
Response for Stimulus: Contractions
Corticotropin-Releasing Hormone (CRH)
Stimulates secretion of Adrenocorticotropic Hormone (ACTH)
Gonadotropin-Releasing Hormone (GnRH)
Stimulates secretion of Foliculotropin (FSH) and Luteotropin (LH)
Prolacin-Inhibithing Hormone (PIH)
Inhibits prolactin secretion
Somatostatin
Inhibits secretion of Somatotropin (GH)
Thyrotropin-Releasing Hormone (TRH)
Stimulates secretion of Thyrotropin (TSH)
Growth Hormome-Releasing Hormone (GHRH)
Stimulates Somatotropin (GH) secretion.
Mineralcorticoids
Aldosterone, most potent
Produced in the Zona Glomerulosa
Stimulates the kidneys to retain Na and water while excreting K in the urine.
Helps to increase blood volume and pressure and regulate the blood electrolyte balance.
Glucocorticoids
Cortisol, most predominate
Secreted by the Zona Fasciculata
Stimulated by ACTH from the Anterior Pituitary (Andohypohysis)
Regulates the metabolism of glucose and other organic molecules
Sex Steroids
DHEA, Dehydroepiandrosterone (weak androgens)
Derived from Cholesterol.
Different zones of the Adrenal Cortex
Supplements the androgens secreted by the gonads.
follicular cells
Synthesis the thyroxine
Parafollicular cells
secrete Calcitonin
Calcitonin
Regulates the Ca levels of the blood. Inhibits the dissolution of Ca-Phosphate crystals of the bone and stimulates the excretion of Ca in the urine by the kidneys.
Alpha Cells of the Pancreatic Islets (Islets of Langerhans)
Secrete Glucagon in response to fall in blood glucose concentration
Stimulates the liver to hydrolyze glycogen in to glucose (glycogenolysis), which causes the blood glucose level to rise.
Also stimulates the hydrolysis of stored fat (lipolysis)
Beta Cells of the Pancreatic Islets (Islets of Langerhans)
Secrete Insulin in response to a riese in blood glucose
Promotes entry of glucose into the tissue cells. and the conversion of glucose into energy stored molecules of glycogen and fat.
