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47 Cards in this Set

  • Front
  • Back
What are the clusters of cells in the pancreas called?
pancreatic islets (islets of langerhans)
What's the conversion of glycogen to glucose?
glycogenolysis
What is glucose formation from amino acids, lacate, etc?
gluconeogenesis
Low blood glucose?
hypoglycemic
High blood glucose?
hyperglycemic
What increases blood glucose level by "breakdown?"
Glucagon
What decreases blood glucose?
Insulin
What's the conversion of glucose to glycogen?
glycogenesis
What's the conversion of glucose or amino acids to fatty acids?
lipogenesis
sentarse
to sit down
insulin secretion may be normal or even increased, but skeletal muscle, adipose tissue, liver, are less sensitive than normal. (obesity)
Type II diabetes
Elevated blood glucose levels exceed the reabsorption capacity for glucose in the kidney leading to excretion of glucose in urine
glucosuria
Glucose in urine exerts an osmotic effect preventing reabsorption of water and leading to increased urine production
Polyuria
Excessive thirst
polydipsia
increased breakdown of fatty acids associated with insulin deficiency, and their use by liver results in excessive production of __________
ketone bodies (keto acids)
The resulting acidosis (__________) leads to electrolyte imbalance which affects the brain causing coma and death if untreated
Diabetic ketoacidosis
Chronic secondary complications of diabetes include effects on small blood vessels in circulation, which can cause_________
diabetic neuropathy and blindness, deteriation of glomerular filtration in kidneys, amputation of leg or foot
Consists of glandular epithelial tissue and is connected with the hypothalamus by blood vessels
Anterior Pituitary
Contains axon terminals whose cell bodies are located in the hypothalamus
Posterior Pituitary
Causes cells to grow and multiply by facilitating entry of amino acids into cells and conversion into proteins
Human growth hormone (hgH) -anterior pituitary
stimulates secretion of thyroid hormone and growth of the thyroid gland
Thyroid-stimulating hormone (TSH; Thyrotropin) A Pit
stimulates cortisol secretion by the adrenal cortex
Adrenocorticotropic Hormone (ACTH) A pit
has different functions in males and females. In females, stimulates the maturation of eggs within the ovarian follicles, and stimulates secretion of estrogen by the ovaries. In males, FSH is required for sperm production
Follicle-stimulating hormone (FSH) A pit
stimulates ovulation and other sexual and reproductive activities
Luteinizing hormone (LH) a pit
together with other hormones initiates and maintains milk production in mammary glands
Prolactin (PRL) a pit
increases skin pigmentation
Melanocyte-stimulating hormone (MSH) a pit
Control the secretion of hormones by other endocrine glands
Tropic Hormones
synthesis/secretion of thyroxine
thyrotropin (t hormones)
cortisol secretion
adrenocorticotropin (ACTH) (t hormones)
ovulation/sexual and reproductive activities
luteinizing hormone (LH) (t hormones)
egg maturation, estrogen secretion, needed for sperm production in males
Follicle-stimulating hormone (FSH)
What is anterior pituitary controlled by?
Neurohormones produced by cells in the hypothalamus
stimulates thyrotropin release
thyrotropin-releasing hormone (TRH) [released by hypothalamus]
secretes neurohormones ADH and oxytocin
Posterior pituitary
increases amount of water conserved by the kidneys
ADH
stimulates uterine contractions that deliver baby and brings flow of milk to breasts
oxytocin
located below the larynx in front of the trachea
thyroid gland
Produces thyroxine and calcitonin
thyroid gland
stimulates secretion of thyroxine (T4-contains 4 iodine atoms)
thyrotropin
increases body's basal metabolic rate and stimulates amino acid uptake and protein synthesis
T4
enlarged thyroid due to lack of iodine (can also be due to hyperthyroidism)
goiter
produced by thyroid and lowers blood calcium
calcitonin
produced by parathyroid glands, raises it
parathyroid hormone (parathormone: PTH)
Secrets 3 groups of steroid hormones (mineralocorticoids, glucocorticoids, sex steriods)
Outer Cortex (adrenal gland)
secretes catecholamines (epinephrine and norepinephrine,) which stimulate the liver to supply glucose to the blood, as well as other fight-or-flight reactions.
Inner medulla (adrenal gland)
Aldosterone stimulates the kidney to conserve sodium and to excrete potassium, increasing blood volume
Mineralocorticoids (adrenal cortex)
- Cortisol decreases glucose utilization by most cells increasing blood glucose - important role in adaptation to stress.
Glucocorticoids (adrenal cortex)