Endocrine Physiology

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HintAnswer
17-alpha hydroxylase is needed to produce what hormone?
Cortisol levels in Cushing's disease (High/Low)
Pacemaker for most circadian rhythms
Pituitary hormone responsible for secretion of thyroid hormone.
Hormone carried in the blood from the adrenal cortex to the adrenal medulla that stimulates conversion of NE to epinephrine.
ACTH levels in Cushing's disease (High/Low)
Serum levels of TSH with hypothyroidism due to iodide insufficiency. (High/Low)
Effect of beta adrenergic agonists on cortisol secretion (Inhibits/Stimulates)
The concept that a receptor can bind a given hormone (and agonists and antogonists) but not others.
Effect of sleep-wake transition on cortisol secretion (Inhibits/Stimulates)
Enzyme that cleaves the transitional block from the preprohormone
Serum levels of TSH with primary hypothyroidism. (High/Low)
Pituitary cell type that produces prolactin.
ACTH dependent hypercortisolism caused by a pituitary microadenoma
Effect of somatostatin on cortisol secretion (Inhibits/Stimulates)
Derived from the diencephalon, composed mostly of nervous tissue.
Hypersecretion of cortisol
This substance accounts for most of the body’s calcium stores.
Pituitary hormone responsible for the secretion of cortisol from the adrenal gland.
ACTH levels in ectopic ACTH secreting tumor (High/Low)
Effect of stress, hypoglycemia, surgery and trauma on cortisol secretion (Inhibits/Stimulates)
Disorder characterized by decreased GH levels prior to puberty.
Part of adrenal gland that is of neuroectodermal origin
Pituitary hormone responsible for sperm production in men.
Hypothalamic product that inhibits secretion of growth hormone (along with others).
Pituitary cell type that produces ATCH.
How tight a hormone binds to its receptor
Part of adrenal gland with mesodermal origin.
Effect of PTH on blood calcium (increases/decreases)
Antibody that stimulates thyroid hormone receptors in Grave's Disease.
Enzyme that converts T4 to rT3 peripherally.
Cortisol levels in adrenal tumor (High/Low)
Hormonal response to danger, uncertainty or change.
Location of cortisol synthesis
One hormone causes the loss of receptors for another hormone thus decreasing the effectiveness of the other hormone.
Part of adrenal gland that makes up 20% of the gland
Pituitary hormone responsible responsible for body growth and metabolism.
Hypothalamic product that inhibits secretion of prolactin.
HintAnswer
Enzyme that converts T4 to T3 peripherally.
Part of adrenal gland that is sympathetically innervated
Serum levels of T3/T4 with secondary hypothyroidism. (High/Low)
Hormone that stimulates growth and vascularity of the thyroid gland.
Cortisol levels in ectopic ACTH secreting tumor (High/Low)
Most commonly deficient enzyme in congenital adrenal hyperplasia
What enzyme activates vitamin D?
T4 converting enzyme that predominates in freezing states.
Hypothalamic product that stimulates secretion of ACTH.
Rathke's pouch grows up from the mouth to form....
Serum levels of TSH with secondary hypothyroidism. (High/Low)
Serum levels of TSH with secondary hyperthyroidism. (High/Low)
Derived from the roof of the mouth, composed of glandular tissue.
Disorder characterized by increased GH secretion that starts after puberty leading to coarse features and metabolic problems.
Pituitary hormone responsible for growth of ovarian follicles and secretion of estrogen in women.
This substance needs only to be hydroxylated in the kidney to become fully active vitamin D.
Disorder caused by a primary GH insensitivity or resistance that causes a lack of cell response to GH.
Effect of psychiatric disturbances on cortisol secretion (Inhibits/Stimulates)
Most common cause of primary hyperthyroidism.
Serum levels of TSH with hyperthyroidism due to a hypersecreting thyroid tumor. (High/Low)
Pituitary cell type that produces thyroid stimulating hormone.
Second most potent mineralocorticoid.
The combined effect of several hormones in greater than the sum of each individual effect.
Neural downgrowth of the diencephalon becomes...
Enzyme that oxidizes iodide and incorporates it into thyroglobulin.
PTH is secreted from ___________ cells.
Membrane protein that transports iodide into the lumen on the apical surface of thyroid cells.
Effect of opioids on cortisol secretion (Inhibits/Stimulates)
Hormone specific binding protein for cortisol
Most common cause of hypothyroidism.
Part of adrenal gland that makes steroid hormones.
Serum levels of T3/T4 with hyperthyroidism due to a hypersecreting thyroid tumor. (High/Low)
Part of adrenal gland that is essential for life.
Serum levels of TSH with primary hyperthyroidism. (High/Low)
Primary site of steroid inactivation
Pituitary cell type that produced growth hormone.
Effect of increased blood cortisol on cortisol secretion (Inhibits/Stimulates)
This substance is the most important regulator of calcium absorption from the gut
HintAnswer
Part of the adrenal gland that makes amine hormones
Pituitary cell type that makes up the lowest percentage of pituitary cells.
ACTH levels in adrenal tumor (High/Low)
Effect of vitamin D on blood calcium (increases/decreases)
Effect of vitamin D on blood phosphate (increases/decreases)
Hypothalamic product that stimulates secretion of luteinizing hormone and follicle stimulating hormone.
Number of receptors on a cell surface
Serum levels of T3/T4 with primary hyperthyroidism. (High/Low)
T4 converting enzyme that predominates in fasting states.
Disorder characterized by increased GH levels prior to puberty.
Pituitary hormone responsible for ovulation, formation of corpus luteum, secretion of estrogen and progesterone in females.
Pituitary cell type that produces luteinizing hormone and follicle stimulating hormone.
Anatomical seat of the pituitary.
Pituitary hormone responsible for testosterone production in men.
Hypothalamic product that stimulates secretion of thyroid stimulating hormone and prolactin
Effect of ADH on cortisol secretion (Inhibits/Stimulates)
Serum levels of T3/T4 with hypothyroidism due to iodide insufficiency. (High/Low)
This substance can be converted to cholecalciferol by the sun
Concept that one hormone must be present in adequate amounts for the full effect of another hormone.
Effect of low blood cortisol on cortisol secretion (Inhibits/Stimulates)
Hypothalamic product that stimulates secretion of growth hormone.
Effect of calcitonin on blood phosphate (increases/decreases)
Effect of alpha adrenergic agonists on cortisol secretion (Inhibits/Stimulates)
This substance does not participate in minute-to-minute regulation of plasma Ca+2 in humans and may not even have a physiologic role in regulating plasma Ca+2
Effect of calcitonin on blood calcium (increases/decreases)
Part of the adrenal gland that makes up 80% of the gland.
Effect of PTH on blood phosphate (increases/decreases)
Thyroid hormone product made after combining two DIT side chains.
Thyroid hormone product of combining MIT and DIT side chains.
Pituitary hormone responsible for breast development and milk production in women.
Effect of seratonin on cortisol secretion (Inhibits/Stimulates)
Hypothalamic product that stimulates secretion of prolactin
Serum levels of T3/T4 with primary hypothyroidism. (High/Low)
Region of the adrenal gland in which the cells don't have 17-alpha hydroxylase.
Serum levels of T3/T4 with secondary hyperthyroidism. (High/Low)
Pituitary cell type that makes up the largest percentage of pituitary cells.

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