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36 Cards in this Set

  • Front
  • Back
Melatonin: source and action
Pineal gland. Circadian rhythm, possible sleep regulation, regulation of reproduction, anti-oxidant.
Serotonin: source and action
Neurons of CNS and endochromaffin cells of GI tract. Regulation of anger, aggression, body temperature, mood, sleep, vomiting, sexuality, and appetite. Neurotransmitter
Thyroxine(T4): Source and action
Follicular cells of thyroid. Involved in controlling the rate of metabolic processes and influencing physical development.
Triiodothyronine(T3): Source and action
Thyroid. Affects almost every process in the body, including body temperature, growth, and heart rate.
Epinephrine: source and action
Adrenal medulla. Boosts the supply of oxygen and glucose to the brain and muscles, while suppressing other non-emergency bodily processes eg digestion. Neurotransmitter.
Norepinephrine: Source and action
Adrenal medulla. Directly increases heart rate, triggering the release of glucose from energy stores, and increasing skeletal muscle readiness. Neurotransmitter.
Dopamine: Source and action
Hypothalamus. Inhibits the release of prolactin
Adrenocorticotropic hormone (ACTH): Source and action
Anterior pituitaty gland. Stimulates the cortex of the adrenal gland and boosts the synthesis of corticosteroids, mainly glucocorticoids but also sex steroids (androgens).
antidiuretic hormone (ADH) (Vasopressin): Source and action
Neurosecretory cells in the hypothalamas, secreted by posterior pituitary. Increases the permeability of the distal tube to water and thus allows water reabsorption, increases arterial blood pressure
Calcitonin: Source and action
parafollicular cells of thyroid. Inhibits osteoclastic bone resorption, which decreases serum Ca
Cortico-releasing hormone (CRH): Source, target, and action.
produced by neuroendocrine cells of hypothalamus, carried to anterior pitutiarty. Stimulates ACTH release. Also secreted by placenta. Neurotransmitter.
Erythropoietin: Source and action.
EPO is produced mainly by peritubular fibroblasts of the renal cortex. Regulates red blood cell production.
Follicle-stimulating hormone (FSH): Source and action
Anterior pituitary. In women, stimulates growth follicles. follicle growth releases inhibin, which shuts off FSH production.
In men, spermatogenesis.
Gastrin: Source and action
Produced by G cells of the duodenum and in the pyloric antrum of the stomach. Released into blood stream. Stimulates parietal cells of the stomach to secrete hydrochloric acid
Glucagon: Source, target and action
alpha cells of islets of langerhans. Bind to glucagon receptors causing the liver to release glucose (glycogen)throughglycogenolysis
Gonadatropin-releasing hormone (GnRH1):source, target, and action.
Synthesized and released by the hypothalamus. Responsible for the release of FSH and LH from the anterior pituitary
Growth hormone (GH): Source and action.
Anterior pituitary. Stimulates growth and cell reproduction.
Inhibin: Source and action.
Ovaries or testes. Inhibits FSH production.
Insulin: Source and action.
Beta cells of the islets of Langerhans. Causes liver and muscle cells to take in glucose and store it in the form of glycogen.
Luteinizing hormone (LH): Source and action.
Anterior pituitary. Surge triggers ovulation and converts follicle to corpus luteum.
Melanocyte-stimulating hormone: Source and action
Intermediate pituitary. Skin pigmentation
Oxytocin: Source, target and action.
Hypothalamus, posterior pituitary. Positive feedback in labor. Breastfeeding.
Parathyroid hormone (PTH): Source and action.
Parathyroid glands. Acts antagonistically to calcitonin, Increase blood ca2+
Prolactin: Source and action
Anterior pituitary. Milk production. Represses dopamine.
Secretin: Source and action.
S cells of the duodenum. Reduces acid secretion from stomach by inhibiting gastrin release from G cells. This helps neutralize the pH of the digestive products entering the duodenum from the stomach.
Somatostatin, growth hormone inhibiting hormone (GHIH): Source and action.
Hypothalamus. Inhibits release of: GH, TSH, Gastrin, Secretin, Insulin, ang Glucagon. Opposes the effects of Growth Hormone-Releasing Hormone (GHRH)
Thrombopoietin: Source and action
Produced by liver and kidneys. Stimulates bone marrow cells that produce platelets.
Thyroid Stimulating hormone (TSH): Source and action.
Anterior Pituitary. Stimulates T3 and T4 secretion. Controlled by TRH.
Thyrotropin-releasing hormone (TRH): Source, target and action
Hypothalamus. Stimulates the release of TSH and prolactin by the anterior pituitary
Cortisol: Source and action
Adrenal Cortex. It increases blood pressure, blood sugar levels and has immunosuppressive action
Cortisol: Source and action
Adrenal Cortex. It increases blood pressure, blood sugar levels and has immunosuppressive action
Aldosterone: Source and action
Adrenal Cortex. Regulates sodium and potassium balance in the blood. Increases permeability of distal tube to K+, thus promoting Na+ and water resorption
Testosterone: Source and action
Testes. Secondary sexual characteristics
Estrogen: Source and action
Ovarian follicles, corpus luteum, and placenta. Secondary sexual characteristics.
Progesterone: Source and action
Ovaries, placental and post corpus luteum. Involved in the female menstrual cycle, pregnancy (supports gestation) and embryogenesis
precursor in the biosynthesis of the adrenal hormone cortisol. Steroid hormone.