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Endocrine Disorders

Patho

QuestionAnswer
___ is from: congenital malformations, destruction from infection, ischemia, inflammation, autoimmune, and cancer, aging, and necessary hormone < hypofunction
___ is from: excessive stimulation, hyperplasia, and hormone secreting tumor hyperfunction
px originated with that particular gland primary
gland may be functioning; px originates with a def of a necessary hormone to function secondary
px is a result of hypothalmic activity tertiary
"master gland" pituitary gland
located at the base of the brain next to the hypothalmus pituitary gland
anterior pituitary secretes ____ (6 things) ACTH, TSH, GH, FSH, LH, prolactin
___ controls cortisol ACTH
___ controls thyroid hormone TSH
___ controls sex hormones LH
___ regulates fertility FSH
there are no s/s of hypopituitarism until ____ 70-90% destruction
____ def can be life-threatening b/c of its role with adrenal glane ACTH
what is the pattern of hypopituitarism? GH, then LH and FSH, then TSH, and then ACTH last
what are 4 things essential for growth and development? GH, insulin, thyroid hormone, and androgens
controls cell division and synthesis of protein GH
somatotropin GH
GH controls bone growth through ____ IGF- insulin-like growth factors
excessive amounts > glucose levels; < glucose being used for energy, uses protein and fat > GH
where is GH carried? plasma
ht is well below 5th% short stature
functional hypothyroidism + emotional deprivation psychosocail dwarfism
___ s/s: poor growth, potbelly, and poor eating/drinking habits psychosocial dwarfism
GH are normal, but have a defect in IGF production; rare laron-type dwarfism
has normal birth wt, normal intelligence, short stature, obesity, immature appearance, delay skeletal maturity and puberty congential GH def
soem causes of tall stature genetic/chrom (Marfan's), >GH, early release of estrogen/androgen
d/t excessive GH release prior to epiphyseal closure gigantism
often can reach 7-8ft tall and have acromegaly gigantism
what is the main cause of gigantism? pituitary tumor
> GH after epiphsis closure and is not very common acromegaly
what is the most common cause of acromegaly? pituitary tumor
___ s/s: large hands and feet, protrusion of hte lower jaw, coarse facial ft, HTN, CAD, CHF, enlarged adrenal thyroid, and parathyroid, HA, sweating, weakness acromegaly
located in the lower neck anterior to the trachea thyroid
produces, stores, and secretes hormones thyroid
responsible for cellular metabolism T4- thyroxine
responsible for regulating cellular metabolism T3- triiodothyronine
calcium regulation thyrocalcitonin- calcitonin
___ is necessary for the thyroid gland to synthesize and secrete hormones iodine
__ and ___ stimulate body growth, > metabolic rate, heart rate, and glucose T3 and T4
acts on the kidneys and bones to < serum Ca levels Calcitonin
functional units of the thyroid follicles
increase in thyroid size or hypertrophy goiter
thyroid's attempt to compensate for inadequate TH goiter
results in a hypometabolic state including < metabolism, O2 consumption, and heat production hypothyroidism
what are the primary cause of hypothyroidism? congenital defects, surgery, radiation, antithyroid meds, iodine def, and thyroditis
what are the secondary causes of hypothyroidism? peripheral resistance to thyroid hormones or pituitary TSH def
___ s/s: memory impairment, edema, hypotension, goiter, wt gain, cold intolerance, bradycardia hypothyroidism
with hypothyroidism everying < except for ___ and ___ wt and fluid
accumulation of protein in the interstitial spaces resulting in > interstitial fluids and non-pitting edema; can also lead to dilated cardiomyopathy myxedema (hypothyroidism)
hypothyroid crisis myxedematous coma
results from exteme or prolonged hypothyroidism and is rare, but life-threatening myxedematous coma
hypermetabolic state hyperthyroidism
___ s/s: emotional liability, agitation, exophtalmos, > reflexes, tachycardia, diarrhea, muscle weakness, fatigue, flushed skin, goiter, hyperthermia, wt loss, heat intolerance, diaphoresis hyperthyroidism
in hyperthyroidism everything goes up except for __ weight
extreme state of hyperthyroidism- is life-threatening and seen in undx cases thyroid storm
most common in women under 40 and the cause is unknown. it is associated with the human leukocyte antigen graves' disease
ocular px is the most prevalent s/s, but smoking does make it worse graves' disease
located posterior to the thyroid parathyroid
maintain serum Ca bby secreting PTH, which > bone, kidney, and intestinal reaborption of Ca parathyroid
activation of ____ is enhanced in the kidneys by PTH Vit D
leads to hypocalcemia, hyperphosphatemia, hyperreflexia, and altered sensorium hypoparathyroidism
rare, familial disorder with PTH resisitance pseudohypothyriodism
leads to hypercalccemia, hypophosphatemia, bone damage, and renal damage hyperparathyroidism
in ___ see > bicard and < acid---leading to hypokalemia and metabolic acidosis hyperparathyroidism
located superior in each kidney adrenal gland
outer layer of the adrenal gland cortex
secretes mineralcorticoids (aldosterone), glucocorticoids (cortisol, testosterone, and estrogen) adrenal cortex
secretes epi, norepi, and dopamine adrenal medulla
inner layer of adrenal gland medulla
stimulates glucose production, < glucose in the tissue glucose metabolism
> plasma levels and breakdown of proteins protein metabolism
> mobilization and utilization of fatty acids fat metabolism
prevention of inflammatory mediators, suppressing immune response anti-inflammatory action
contributes to emotional instability psychic effect
facilitates humoral and neural influences permissive effect
chronic adrenal suppression with meds leads to ___ atrophy
autosomal recessive trait that effects both genders--- def of enymes necessary for the synthesis of cortisol congenital adrenal hyperplasia
___ leads to > levels of ACTH and mineralocoticoids congenital adrenal hyperplasia
___ s/s: abiguous genitalia, hyponatermia, hyperkalemia, vomiting, dehydration, shock congenital adrenal hyperplasia
rare, primary adrenal cortical insufficiency where the adrenal cortical hormones are < and ACTH is > addison's disease
chronic metabolic disease where all of the adrenal cortex is destroyed addison's disease
___ s/s: related to hormone def and ACTH elevation but do not become apparent until 90% adrenal destruction addison's disease
life-threatening---s/s include N/V, muscular weakness, hypotension, dehydration, vascular collapse acute adrenal crisis
hypercorticolism Cushing's Syndrome
what are the 4 forms of Cushing's syndrome? cushing's disease, adrenal tumor, ectopic cushings, and iatrogenic
excessive ACTH from the pituitary Cushing's disease
caused by a nonpituitary ACTH secreting tumor ectopic cushing's
cushings syndrom from that is from long-term glucocorticoid iatrogenic
___ s/s: neuro, CV, GI, MS, skin, renal, repriductive, metabolic PX cushing's syndrome
a lack of or inadequate secretion of insulin, or insulin resistance resulting from hyperglycemia DM
most common chronic endocrine disorder DM
___ works with the liver to maintain blood sugar levels pancreas
6-carbon molecule glucose
used especially bbyt he brain and the NS efficient fuel
describe the tract and process glucose takes when it enters the body enters: GI tract, travels: the portal vien into th liver, liver sends: circulatory system, tissue retrieves it from bl strem
how does the live adjust blood glucose levels glycogen synthesis, glycogen breakdown, and synthesis for glucose from noncarbohydrate source (amino acids, lactic acids, triglycerides)
3 sources of energy metabolism glucose, fat, and protein
the most efficient form of fuel storage fat
all cells but ___ and ___ use fat brain and RBC
where does the inital breakdown of fat occur? liver
what is fat released as? ketones
3/4 of the body's solids are __ proteins
__ are essential for genes, enzymes, muscles, bone, and Hgb proteins
building blocks amino acids
excess protein does not get stored as protein but as... fat, ketones, or glucose
secretes digestive juices into the duodenum acini
secretes glucose-regulating hormones into the blood islets of langerhans
acini and islets of langerhans are apart of the ___ pancreas tissue
islets of langerhans----synthesis and secretion of glucagon alpha
islets of langerhans----synthesis and secretion of insulin beta
islets of langerhans----secretes somatostain delta
inhibits the release of insulin and glucagon, < GI absorption, extends the use of nutrients by the tissues somatostatin (secreted by delta of islets of langerhans)
promotes glucose uptake by target cells and provides for glucose storage as glycogen insulin
prevents fat and glucose breakdown and inhibits gluconegenesis insulin
> protein synthesis insulin
> transport of glucose into fat cells insulin
facilitates trig synthesis from glucose in fat cells insulin
inhibits intracellular breakdown of stored trig insulin
binds to and activates a membrane receptor of the target cells insulin
cell membranes are impermeable to ___ so ___ must be actively transported in glucose
polypeptide molecule glucagon
> during hypoglycemic times and initates glucose release from the liver glucagon
maintain glucose during stress catecholamine (epi and norepi)
catecholamines epi and norepi
> protein synthesis and mobilizes fat from adipose GH
antagonizes insulin-> blood glucose GH
critical to survive starvation and fasting glucocorticoid
stimulates gluconegensis by the liver glucocorticoid
____ released during times of stress will > glucocorticoid cortisol
Created by: TayBay15
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