Bio Bases of Behavior: Endocrine Disorders Flashcards
Fx of the Pituitary
Master endocrine gland b/c it releases hormones that activate other glands
Hypopituitarism
Undersecretion of pit hormones
Children- dwarfism, pubertal delay
Adults: Gonadal failure (impotence, infertility) & many other endocrine related disorders
Hyperpituitarism
Oversecretion of pit hormones, leading to skeletal overgrowth (acromegaly, gigantism)
Fx of the Thyroid Gland
Controls metabolism through secretion of thyroxin
Hyperthyroidism
Excessive secretion of thyroxin
Weight loss despite inc appetite, heat sensitivity, sweating, diarrhea, tremor, palpitations, fatigue, agitated depression, insomnia, impaired memory/judgment, halluc/delusions
Graves Disease
Most common form of hyperthyroidism
Hypothyroidism
Undersecretion of thyroxin
Weight gain, sluggish, fatigue, impaired memory/intellectual fxing, sensitivity to cold
Myxedematous symptoms
Progression of hypothyroidism charac by dry skin, puffiness, sparse hair, dec cardiac outpt)
parathyroid gland
Secretes calcitonin, plays role in calcium retention
Hyperparathyroidism
Hypercalcemia resulting in delirium, depression, apathy, personality changes, psychosis, stupor or coma
Hypoparathyroidism
Produces neuromuscular sxs, from parathesias (tingling) to tetany (cramps, convulsions), personality changes, delirium
Pancreas
Involved in secretion of insulin
Undersecreting or non-secreting pancreas results in _____
Diabetes Mellitus
Type I Diabetes
Juvenile onset, more serious, insulin dependent
Type II Diabetes
Adult onset, Non Insulin Dependent
Adrenal Cortex
Secretes corticosteroids involved in use of energy, inhibition of antibody formation, & inflammation
Addison’s Disease
undersecretion of corticosteroids/adrenal insufficiency; leading to: Apathy Weakness Irritability Depr GI disturbance
Cushing’s Disease
Oversecretion of corticosteroids; leading to:
Agitated depr
Irritability
Emotional lability
Diff w/memory
Possibly suicide
Adiposity (swelling) of face, neck, trunk
2 Adrenal Diseases
Addison’s & Cushing’s
Hypoglycemia
Abnormally low blood sugar Nervous Irritability trembling, cold fatigue rapid heart rate hunger headache
Hyperglycemia
High blood sugar; common in diabetes Thirst Increased urination Dehydration Fatigue Abdominal pain Nausea Loss of appetite
Idiopathic
term for when cause of disease is unknown
Iatrogenic
term for when illness or disease is contracted during course of medical tx for another illness
Nocebo
opposite of placebo; something that should be ineffective but causes sxs of ill health
