NURS 3366 - Exam Questions With || || || || || ||
Correct Answers || ||
the endocrine system is dependent on
|| || || || ||
negative feedback systems || ||
negative feedback system || ||
A reaction that causes a decrease in function in response
|| || || || || || || || || ||
to some kind of stimulus.
|| || || ||
negative feedback system: example 1|| || || ||
a HIGH blood level of a circulating hormone (a hormone is
|| || || || || || || || || ||
basically a chemicalmessenger) will
|| || || || ||
automaticallysuppress the gland that secreted it and/or || || || || || || ||
otherglands in the feedback loop, thusdecreasing || || || || || ||
secretion of that hormone || || ||
negative feedback system: example 2|| || || ||
a LOW blood level of a circulating hormone will
|| || || || || || || || ||
automatically stimulate the glandthat secreted it and/or || || || || || || ||
,other glands in the feedback loop.. the result is that
|| || || || || || || || || ||
therewill be MORE of the hormone in circulation
|| || || || || || ||
pituitary gland ||
AKA hypophysis AKA master gland located in brain near
|| || || || || || || || ||
base of skull|| ||
pituitary gland secretes || ||
1. antidiuretic hormone (ADH)
|| || ||
2. thyroid-stimulating hormone (TSH)
|| || ||
3. adrenocorticotropic hormone (ACTH)
|| || ||
ADH normally released when..
|| || ||
process that the body uses tocompensate for ("fix") low
|| || || || || || || || ||
fluid volume: when the pituitary detects that circulating
|| || || || || || || ||
fluid volume is low, (the body has a high osmolality or
|| || || || || || || || || || ||
high blood concentration) it secretes ADH > ADH "tells"
|| || || || || || || || ||
kidneys to "hang onto" water by decreasing urine output
|| || || || || || || || ||
> fluids are conserved and fluid volume in the body goes
|| || || || || || || || || || ||
up.
,normal ADH process:
|| ||
low volume/high osmolality alerts pituitary > ADH
|| || || || || || ||
released from the pituitary > ADH tells kidney to hang on
|| || || || || || || || || || ||
to water > ADH released from pituitary > kidneys sense
|| || || || || || || || || ||
low fluid volume, low BP, and high blood concentration >
|| || || || || || || || || ||
kidneys secrete renin (RAAS activated) > angiotensin I >
|| || || || || || || || ||
angiotensin II > peripheral vasoconstriction and || || || || || ||
aldosterone release from adrenal gland || || || ||
diabetes insipidus (DI) (ADH problem)
|| || || ||
undersecretion; means “to pass too much urine;” || || || || || || ||
insipidus means “flavorless” (refers to the fact that the
|| || || || || || || || ||
urine has no color because it is very dilute)
|| || || || || || || ||
two causes for diabetes insipidus (DI)
|| || || || ||
renal or CNS problems
|| || ||
, renal problems (diabetes insipidus)
|| || ||
"sick" kidneys often have adecreased response of renal
|| || || || || || || ||
tubules to ADH || ||
CNS problems (diabetes insipidus)
|| || ||
1. a lesion such as a pituitary tumor causes the gland
|| || || || || || || || || || ||
todiminishits secretion of ADH || || ||
2. acute abnormality in the brain such as head injury
|| || || || || || || || || ||
orother causes of cerebral edema & IICP in the brain
|| || || || || || || || || ||
canput pressure on the pituitary gland & cause it
|| || || || || || || || ||
todiminish ADH secretion || ||
decrease in ADH due to ____ whereas increase in ADH due
|| || || || || || || || || ||
to ____
|| ||
diabetes insipidus; SIADH || ||
decrease in ADH = || || ||
kidneys will allow more H2O in urine (polyuria) > increase
|| || || || || || || || ||
in UO > decrease in H2O in body > increase in osmolality
|| || || || || || || || || || || ||
Correct Answers || ||
the endocrine system is dependent on
|| || || || ||
negative feedback systems || ||
negative feedback system || ||
A reaction that causes a decrease in function in response
|| || || || || || || || || ||
to some kind of stimulus.
|| || || ||
negative feedback system: example 1|| || || ||
a HIGH blood level of a circulating hormone (a hormone is
|| || || || || || || || || ||
basically a chemicalmessenger) will
|| || || || ||
automaticallysuppress the gland that secreted it and/or || || || || || || ||
otherglands in the feedback loop, thusdecreasing || || || || || ||
secretion of that hormone || || ||
negative feedback system: example 2|| || || ||
a LOW blood level of a circulating hormone will
|| || || || || || || || ||
automatically stimulate the glandthat secreted it and/or || || || || || || ||
,other glands in the feedback loop.. the result is that
|| || || || || || || || || ||
therewill be MORE of the hormone in circulation
|| || || || || || ||
pituitary gland ||
AKA hypophysis AKA master gland located in brain near
|| || || || || || || || ||
base of skull|| ||
pituitary gland secretes || ||
1. antidiuretic hormone (ADH)
|| || ||
2. thyroid-stimulating hormone (TSH)
|| || ||
3. adrenocorticotropic hormone (ACTH)
|| || ||
ADH normally released when..
|| || ||
process that the body uses tocompensate for ("fix") low
|| || || || || || || || ||
fluid volume: when the pituitary detects that circulating
|| || || || || || || ||
fluid volume is low, (the body has a high osmolality or
|| || || || || || || || || || ||
high blood concentration) it secretes ADH > ADH "tells"
|| || || || || || || || ||
kidneys to "hang onto" water by decreasing urine output
|| || || || || || || || ||
> fluids are conserved and fluid volume in the body goes
|| || || || || || || || || || ||
up.
,normal ADH process:
|| ||
low volume/high osmolality alerts pituitary > ADH
|| || || || || || ||
released from the pituitary > ADH tells kidney to hang on
|| || || || || || || || || || ||
to water > ADH released from pituitary > kidneys sense
|| || || || || || || || || ||
low fluid volume, low BP, and high blood concentration >
|| || || || || || || || || ||
kidneys secrete renin (RAAS activated) > angiotensin I >
|| || || || || || || || ||
angiotensin II > peripheral vasoconstriction and || || || || || ||
aldosterone release from adrenal gland || || || ||
diabetes insipidus (DI) (ADH problem)
|| || || ||
undersecretion; means “to pass too much urine;” || || || || || || ||
insipidus means “flavorless” (refers to the fact that the
|| || || || || || || || ||
urine has no color because it is very dilute)
|| || || || || || || ||
two causes for diabetes insipidus (DI)
|| || || || ||
renal or CNS problems
|| || ||
, renal problems (diabetes insipidus)
|| || ||
"sick" kidneys often have adecreased response of renal
|| || || || || || || ||
tubules to ADH || ||
CNS problems (diabetes insipidus)
|| || ||
1. a lesion such as a pituitary tumor causes the gland
|| || || || || || || || || || ||
todiminishits secretion of ADH || || ||
2. acute abnormality in the brain such as head injury
|| || || || || || || || || ||
orother causes of cerebral edema & IICP in the brain
|| || || || || || || || || ||
canput pressure on the pituitary gland & cause it
|| || || || || || || || ||
todiminish ADH secretion || ||
decrease in ADH due to ____ whereas increase in ADH due
|| || || || || || || || || ||
to ____
|| ||
diabetes insipidus; SIADH || ||
decrease in ADH = || || ||
kidneys will allow more H2O in urine (polyuria) > increase
|| || || || || || || || ||
in UO > decrease in H2O in body > increase in osmolality
|| || || || || || || || || || || ||
