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Medical Terminology
Endocrine System terms
59
Medical
Undergraduate 1
03/10/2007

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Term
growth hormone (GH)
Definition
regulates metabolism and body growth
Term
melanocyte-stimulating hormone
Definition
stimulates skin pigment production
Term
thydoid-stimulating hormone (TSH)
Definition
stimulates the thyroid gland
Term
prolactin
Definition
stimulates milk secretion
Term
oxytocin
Definition
stimulates uterus contractions and milk secretion
Term
antidiuretic hormone
Definition
stimulates water reabsorption in the kidneys - reduces urine volume
Term
thyroxine (T4)
Definition
regulates the breakdown of glucose and synthesis of most cells in the body
Term
triiodothyronine (T3)
Definition
works in conjunction with T4 to produce the same effects
Term
calcintonin
Definition
stimulates calcium to leave the blood and enter the bones, reducing blood calcium
Term
insulin
Definition
reduces blood sugar levels by stimulating the conversion of glucose to glycogen
Term
glucagon
Definition
increase blood sugar levels by stimulating the conversion of glycogen to glucose
Term
hormone
Definition
chemicals by which the endocrine system communicates with the body
Term
adrenal glands
Definition
produce "fight or flight" hormones (adrenalin)
Term
parathyroid glands
Definition
secrete parathyroid hormone (PTH) to increase calcium levels in the blood
Term
thyroid gland
Definition
butterfly-shaped, wraps around larynx
Term
islets of Langerhans
Definition
clusters of cells in the pancreas that secrete hormones
Term
pancreas
Definition
behind the stomach, secretes digestive enzymes and hormones
Term
pituitary gland
Definition
within the cranial cavity - directly below the brain - "master gland"
Term
adenohypophysis
Definition
anterior lobe of the pituitary
Term
neurohypophysis
Definition
posterior lobe of the pituitary
Term
exophthalmos
Definition
abnormal protrusion of the eyes
Term
goiter
Definition
abnormal enlargement of the thyroid gland
Term
hypersecretion
Definition
abnormal increase in hormone production (often from an inherited disease or a tumor)
Term
hyposecretion
Definition
abnormal decrease in hormone production (often from trauma to a gland - injury/infection)
Term
ketosis
Definition
excessive amount of ketone bodies in the blood and urine - abnormal metabolism of carbohydrates
Term
polydipsia
Definition
excessive thirst
Term
polyuria
Definition
excessive peeing (large volumes of urine)
Term
acromegaly
Definition
enlargement of bone structure most prominant in the face and hands - hypersecretion of growth hormone after puberty
Term
adenosis
Definition
abnormal condition of a gland
Term
adrenal virilism
Definition
excessive production of androgen (male hormones) by the adrenal cortex
Term
cretinism
Definition
congenital hypothyroidism - dwarfed physical stature, reduced mental development
Term
diabetes insipidus
Definition
hyposecretion of ADH (antidiaretic hormone) by the posterior lobe of the pituitary gland: excessive thirst and urination
Term
diabetes mellitus
Definition
chronic disorder of carbohydrate metabolism, includes type I
Term
hirsutism
Definition
excessive body hair
Term
hypercalcemia
Definition
abnormally high calcium levels in the blood
Term
hypocalcemia
Definition
abnormally low calcium levels in the blood
Term
hyperglycemia
Definition
abnormally high blood sugar levels
Term
hypoglycemia
Definition
abnormally low blood sugar levels
Term
hyperkalemia
Definition
abnormally high potassium levels in the blood
Term
hypokalemia
Definition
abnormally low potassium levels in the blood
Term
hyponatremia
Definition
abnormally low sodium levels in the blood
Term
hyperparathyroidism
Definition
hypersecretion of the parathyroid glands - causes calcium to leave the bones and enter the blood
Term
hypoparathyroidism
Definition
hyposecretion of the parathyroid glands - causes calcium to leave the blood and enter the bones
Term
hyperthyroidism
Definition
excess thyroid hormone production
Term
hypothyroidism
Definition
low thyroid hormone production
Term
myxedema
Definition
advanced hypothyroidism in adults, sometimes causing thyroid gland atrophy
Term
pancreatitis
Definition
inflammation of the pancreas
Term
pituitary dwarfism
Definition
hyposecretion of growth hormone at an early age - slowing growth; short but proportional stature
Term
pituitary giantism/gigantism
Definition
hypersecretion of growth hormone that begins before puberty, leading to abnormally large bones - very large stature
Term
tetany
Definition
deficiency of parathyroid hormone - producing low calcium levels - excitation of nerves and muscle spasms
Term
hyperthyroidism/thyrotoxicosis
Definition
excessive thyroid hormone levels - can be deadly very quickly (extreme hyperthyroidism)
Term
adrenalectomy
Definition
excision of the adrenal gland
Term
endocrinologist
Definition
someone who specializes in the treatment of endocrine disorders
Term
glucose tolerance test
Definition
a diagnostic test to confirm diabetes mellitus and other abnormalities
Term
radioiodine therapy
Definition
the use of radioactive iodine to treat a disease of the thyroid gland
Term
thyroidectomy
Definition
excision of the thyroid gland
Term
hormone replacement
Definition
the use of a drug that replaces a hormone to correct a hormone deficiency
Term
pancreatectomy
Definition
excision of the pancreas
Term
glycosuria
Definition
sugar in the urine
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