WGU D446 ENDOCRINE SYSTEM HOURLY
ROUNDS RESULTS COMPREHENSIVE STUDY
GUIDE WITH SOLUTIONS
◉ hyperglycemic effect
Answer: since Growth hormone promotes the use of lipids for
energy, glucose accumulates in the blood; animal has to have a
normal production of insulin to counteract hyperglycemia
◉ prolactin
Answer: helps trigger and maintain lactation in females; secretion of
milk by mammary glands; when prolactin stimulation stops: milk
production stops, mammary gland shrinks to nonlactating size;
continues to make milk if it is stimulated (positive feedback)
◉ Thyroid Stimulating Hormone (TSH)
Answer: stimulates growth/development of thyroid gland and
causes thyroid to produce hormones; negative feedback; levels too
low TSH production increases; levels too high TSH production
diminishes
◉ Adrenocorticotropic hormone (ACTH)
, Answer: stimulates growth/development of adrenal cortex and the
release of its hormones; regulated by levels of cortisol
◉ when cortisol is low or patient is stressed
Answer: the hypothalamus will produce CRF which causes anterior
pituitary to release ACTH
◉ When cortisol is elevated
Answer: negative feedback will cause CRF and ACTH levels to be
reduced
◉ Why is administering steroids a bad thing?
Answer: they mimic the effects of cortisol can cause negative
feedback and will make the adrenal glands atrophy
◉ Follicle Stimulating Hormone (FSH)
Answer: Females: stimulates growth/development of ovarian
follicles; also stimulates the cells lining the follicles to
produce/secrete estrogen; used to superovulate
Males: stimulates spermatogenesis in the testes
◉ Luteinizing Hormone (LH)
Answer: completes follicular development in ovary; increased
amounts of estrogen feedback to the anterior pituitary and cause
ROUNDS RESULTS COMPREHENSIVE STUDY
GUIDE WITH SOLUTIONS
◉ hyperglycemic effect
Answer: since Growth hormone promotes the use of lipids for
energy, glucose accumulates in the blood; animal has to have a
normal production of insulin to counteract hyperglycemia
◉ prolactin
Answer: helps trigger and maintain lactation in females; secretion of
milk by mammary glands; when prolactin stimulation stops: milk
production stops, mammary gland shrinks to nonlactating size;
continues to make milk if it is stimulated (positive feedback)
◉ Thyroid Stimulating Hormone (TSH)
Answer: stimulates growth/development of thyroid gland and
causes thyroid to produce hormones; negative feedback; levels too
low TSH production increases; levels too high TSH production
diminishes
◉ Adrenocorticotropic hormone (ACTH)
, Answer: stimulates growth/development of adrenal cortex and the
release of its hormones; regulated by levels of cortisol
◉ when cortisol is low or patient is stressed
Answer: the hypothalamus will produce CRF which causes anterior
pituitary to release ACTH
◉ When cortisol is elevated
Answer: negative feedback will cause CRF and ACTH levels to be
reduced
◉ Why is administering steroids a bad thing?
Answer: they mimic the effects of cortisol can cause negative
feedback and will make the adrenal glands atrophy
◉ Follicle Stimulating Hormone (FSH)
Answer: Females: stimulates growth/development of ovarian
follicles; also stimulates the cells lining the follicles to
produce/secrete estrogen; used to superovulate
Males: stimulates spermatogenesis in the testes
◉ Luteinizing Hormone (LH)
Answer: completes follicular development in ovary; increased
amounts of estrogen feedback to the anterior pituitary and cause
