Metabolism Flashcards
endocrine gland that secretes: growth hormone prolactin TSH (thyroid stimulating hormone) ACTH (adrenocorticotropic hormone) LH (lutenizing hormone) FSH (follicle stimulating hormone)
anterior pituitary
endocrine gland that secretes:
ADH (antidiuretic hormone)
oxytocin
posterior pituitary
endocrine gland that secretes:
T4 (thyroxine)
T3 (triiodithyronine)
calcitonin
thyroid gland
endocrine gland that secretes:
PTH (parathyroid hormone)
parathyroid gland
endocrine gland that secretes:
epinephrine
norepinephrine
adrenal medulla of the adrenal glands
endocrine gland that secretes:
mineralocorticoids (aldosterone)
glucocorticoids (cortisol, cortisone)
adrenal cortex of the adrenal glands
endocrine gland that secretes: alpha cells > glucagon beta cells > insulin delta cells > somatostatin F cells > pancreatic polypeptide
pancreas
- chemical messengers secreted by the endocrine system and transported throughout the body
- do not cause reactions directly, regulate tissue responses
hormones
-the process of biochemical reactions occuring in the body’s cells that are necessary to produce energy, repair cells and maintain life
metabolism
-system that controls the cellular activity that regulates growth and body metabolism
endocrine system
how are hormones transported in the body?
- via the bloodstream (from endocrine glands or neuroendocrine route – thyroid, pancreas, adrenals)
- directly to target cells (hypothalmus – nerve cell extension)
- diffuse through interstitial fluid (paracrine method)
how are receptor sites for hormones organized?
they respond only to a specific hormone
- when the product of a process has an effect on the rate of the process
- occurs when the rate of the process decreases as the concentration of the product increases
negative feedback system
- when the product of a process has an effect on the rate of the process
- occurs when the rate of a process increases as the concentration of the product increases
positive feedback system
what are the stimuli for hormone release? (3)
- hormonal (ie hypothalmus secretions stimulate anterior pituitary and ant. pit. secretions stimulate another gland…)
- humoral (conditions in the body stimulate a gland to release hormones)
- neural (SNS nerve fibers stimulate a gland to release hormones)