3.24.25 lecture: gonadocorticoids and catecholamines

the main secretions of gonadocorticoids are ___________________

androgens

androgens are immediate precursors to ____________

testosterone

the 2 main androgens that are precursors to testosterone are _____________________ and ___________________

androstenedione and DHEA

where are gonadocorticoids produced?

adrenal cortex

adrenogenital syndrome is the ________________ of androgens, and is generally caused by ___________________

hypersecretion; a tumor on the adrenal cortex

in males, adrenogenital syndrome results in

early-onset puberty

in females, adrenogenetal syndrome results in

masculinization (irreversible)

what hormone increases the production of androstenedione and DHEA?

ACTH, still relatively lower than what the gonads can do though

the catecholamines are __________________ and ___________________

epinephrine and norephinephrine

the catecholamines are a part of a _____________ pathway and are ______________ regulated

stress; neurally

catecholamines are a _____________-term stress pathway, whereas cortisol is the _____________________-term stress pathway

short; long

________________ tend to secrete more norepinephrine, the ______________________ secrete more epinephrine

neurons; adrenal glands

the difference between epinephrine and norepinephrine are one _____ molecule

CH3

what does epinephrine do?

binds to adrenergic receptors to increase heart rate and blood pressure, promotes the breakdown of glycogen in the liver and skeletal muscle, promotes dilation of the bronchioles, and increases metabolic rate

producing excessive amounts of catecholamines is called ______________________

pheochromocytoma

what are the symptoms of pheochromocytoma?

chronically elevated heart rate, metabolic rate, blood pressure, and body temperature

what causes pheochromocytoma?

a tumor within the adrenal gland