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Target cell activation by hormone receptor
interaction depends on
Affinity b/t hormone and receptor blood levels of hormones relative # of receptors TERM 2
Pituitary Gland
DEFINITION 2 Hypophysis secretes 9 hormones infundibulum attaches to hypothalamus TERM 3
Posterior Pituitary
DEFINITION 3 Composted of pituicytes neurohypophysis not true endocrine, stores hormones Oxytocin/ADH TERM 4
Hypothalamic-hypophyseal tract
DEFINITION 4 Primary/secondary capillary plexus that Oxytocin/ADH travel down to get to posterior pituitary TERM 5
ADH
DEFINITION 5 prevents wide changes in water balance osmoreceptors monitor this
Anterior Pituitary
adenohypopysis granular 6 hormones produced....4/6 tropic TERM 7
Thyroid Stimulating Hormone
DEFINITION 7 Tropic Stimulates development and secretory actions of thyroid gland Release from cells called thyrotrophs by the TRH Rising blood levels of thyroid hormones inhibit TSH secretion TERM 8
ACTH
DEFINITION 8 Secretes corticotrophins TERM 9
Thyroid Hormone
DEFINITION 9 T3/T4 Increases metabolic rate/bodies heat production regulates blood pressure/blood volume TERM 10
Calcitonin
DEFINITION 10 Produced by parafollicular cells lowers Ca levels in the blood Targets skeletal sys.
Neutrophils
Most numerous Contain hydrolytic enzymes( lysosomes) defensins TERM 17
Basophils
DEFINITION 17 least common histamine containing granules mast cells TERM 18
Platelets
DEFINITION 18 fragments of megakaryocytes form temp. plug Anucleat essential for clotting formation regulated by thrombopoietin TERM 19
Vascular Spasm
DEFINITION 19 Damage blood cell respond to injury by constricting Chemical released by endothelial cells TERM 20
Platelet Plug Formation
DEFINITION 20 aggregating together to form a temp. plug platelets adhere to collagen fibers, swell become sticky and release: ADH/Serotonin/Thromboxane A2 1 minute clot is formed
