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Chapter 13
The Endocrine System
60
Medical
Undergraduate 2
11/21/2011

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Term
acromegaly
Definition
abnomal enlargement of the extremeties (hands and feet) that is caused by excessive secretion of growth hormone AFTER puberty
Term
Addison's disease
Definition
occurs when the adrenal glands do not produce enough of the hormones cortisol or aldosterone
Term
adrenalitis
Definition
inflammation of the adrenal glands
Term
aldosteronism
Definition
abnormality of electrolyte balance caused by the excessive secretion of aldosterone
Term
antidiuretic hormone
Definition
maintains the water balance within the body by promoting the reabsorption of water through the kidneys
Term
calcitonin
Definition
*Source: Thyroid gland
*Functions: works with the parathyroid hormone to regulate calcium levels in the blood and tissues
Term
chemical thyroidectomy
Definition
the administration of radioactive iodine to destroy thyroid cells
Term
Conn's syndrome
Definition
disorder of the adrenal glands due to excessive production of aldosterone
Term
cortisol
Definition
*Source: Adrenal cortex
*Function: Regulates the metabolism of carbohydrates, fats, and proteins in the body
Term
cretinism
Definition
a congenital form of hypothyroidism
*Can cause arrested physical and mental development if not treated
Term
Cushing's syndrome
Definition
Caused by prolonged exposure to high levels of cortisol
*Causes "moon face"
Term
diabetes insipidus
Definition
caused by insufficient production of the antidiuretic hormone or by the inability of the kidneys to respond appropriately to this hormone
Term
diabetes mellitus
Definition
a group of metabolic disorders characterized by hyperglycemia resulting from defects in insulin secretion, insulin action, or both
Term
diabetes retinopathy
Definition
occurs when diabetes damages the tiny blood vessels in the retina, causing blood to leak into the posterior segment of the eyeball
Term
electrolytes
Definition
mineral substances, such as sodium and potassium, that are normally found in the blood
Term
epinephrine
Definition
(adrenaline) stimulates the sympathetic nervous system in response to stress or other stimuli
OR
synthetic hormone used as a vasoconstrictor to treat conditions such as heart dysrhythmias and asthma attacks
Term
estrogen
Definition
*Source: ovaries
*Functions: Develops and maintains the female secondary sex characteristics and regulates the menstrual cycle
Term
exophthalmos
Definition
an abnormal protrusion of the eyeball out of the orbit
Term
follicle-stimulating hormone
Definition
*Source: Pituitary gland
*Functions: In the female, stimulates the secretion of estrogen and the growth of ova (eggs). In the male, stimulates the production of sperm
Term
fructosamine test
Definition
measures average glucose levels over the past 3 weeks
Term
gestational diabetes
Definition
a form of diabetes mellitus that occurs during some pregnancies
Term
gigantism
Definition
abnormal overgrowth of the entire body that is caused by excessive secretion of the growth hormone *before* puberty
Term
glucagon
Definition
the hormone secreted by the alpha cells of the pancreatic islets in response to low blood sugar levels
Term
glucose
Definition
(blood sugar) the basic form of energy used by the body
Term
glycogen
Definition
the form in which the liver stores the excess glucose
Term
Grave's disease
Definition
autoimmune disorder that is caused by hyperthyroidism, characterized by goiter and/or exophthalmos
Term
gynecomastia
Definition
the condition of excessive mammary development in the male
Term
Hashimoto's thyroiditis
Definition
(chronic lymphocytic thyroiditis) an autoimmune disease in which the body's own antibodies attack and destroy the cells of the thyroid gland
Term
hypercalcemia
Definition
characterized by abnormally high concentrations of calcium circulating in the blood instead of being stored in the bones
Term
hypercrinism
Definition
a condition due to excessive secretion of any gland, especially an endocrine gland
Term
hyperglycemia
Definition
an abnormally high concentration of glucose in the blood
Term
hyperinsulinism
Definition
the condition of excessive secretion of insulin in the bloodstream
Term
hyperpituitarism
Definition
pathology resulting in the excessive secretion by the anterior lobe of the pituitary gland
Term
hyperthyroidism
Definition
imbalance of metabolism caused by the overproduction of thyroid hormones
Term
hypoglycemia
Definition
an abnormally low concentration of glucose in the blood
Term
hypothyroidism
Definition
(underactive thyroid) caused by a deficiency of thyroid secretion
Term
insulinoma
Definition
a benign tumor of the pancreas that causes hypoglycemia by secreting additional insulin
Term
interstitial cell-stimulating hormone
Definition
*Source: Pituitary gland
*Functions: Stimulates ovulation in the female. Stimulates the secretion of testosterone in the male
Term
laparoscopic adrenalectomy
Definition
a minimally invasive procedure to surgically remove one or both adrenal glands
Term
leptin
Definition
hormone secreted by apidocytes (fat cells)
Term
luteinizing hormone
Definition
*Source: Pituitary gland
*Functions: In the female, stimulates ovulation. In the male, stimulates testosterone secretion.
Term
myxedema
Definition
caused by extreme deficiency of thyroid secretion
Term
norepinephrine
Definition
Both a hormone and a neurohormone. Released as a neurohormone by the sympathetic nervous system and as a hormone by the adrenal medulla
Term
oxytocin
Definition
*Source: Pituitary gland
*Functions: Stimulates uterine contractions during childbirth. Also causes milk to flow from the mammary glands after childbirth
Term
pancreatalgia
Definition
pain in the pancreas
Term
pancreatitis
Definition
an inflammation of the pancreas
Term
pheochromocytoma
Definition
a benign tumor of the adrenal medulla that causes the gland to produce excess epinephrine
Term
pinealoma
Definition
a tumor of the pineal gland that can disrupt the production of melatonin
Term
pituitarism
Definition
any disorder of pituitary function
Term
pituitary adenoma
Definition
a slow-growing, benign tumor of the pituitary gland
*Two types, functioning and non-functioning
Term
polydipsia
Definition
excessive thirst
Term
polyphagia
Definition
excessive hunger
Term
polyuria
Definition
excessive urination
Term
progesterone
Definition
the hormone released during the second half of the menstrual cycle by the corpus luteum in the ovary.
Function: to complete the preparations for pregnancy
Term
prolactinoma
Definition
benign tumor of the pituitary gland that causes it to produce too much prolactin
Term
testosterone
Definition
*Source: Testicles
*Function: Stimulates the development of male secondary sex characteristics
Term
thymectomy
Definition
the surgical removal of the thymus gland
Term
thymitis
Definition
an inflammation of the thymus gland
Term
thymosin
Definition
*Source: Thymus
*Function: Plays an important role in the immune system
Term
thyroxine
Definition
*Source: Thyroid gland
*Function: Regulate the rate of metabolism
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