endocrine and exocrine Flashcards
what system had glands and no ducts?
endocrine
what system has glands and ducts?
exocrine
what are examples of steroid hormones (lipids)?
aldosterone, cortisol, testosterone, estrogen
what do steroid hormones consist of?
derived from cholesterol, sex hormones, adrenal cortex hormones
what are the types of non-steroidal hormones?
-amines
-proteins
-peptides
-glycoproteins
what is an example of an amine hormone?
epi/norepi (aa)
what is an example of a protein hormone?
parathyroid (aa>10)
what is an example of a peptide hormone?
oxytocin (aa<=10)
what is an example of a glycoprotein hormone?
follicle stimulation hormone, leutinizing hormone (aa,carbs)
where does FSH act?
oogenesis, spermatogenesis
where does LH act?
ovulation, progesteron and testosterone secretion
where are FSH and LH found?
anterior pituitary
what stimulates FSH and LH?
gonadotropin releasing hormone GRH
where is GHR found?
hypothalamus
where is thyrotropin releasing hormone found TRH?
hypothalamus
where is TSH found?
anterior pituitary
what does TSH do?
release of T3 and T4 from thyroid gland
where is the corticotropin releasing hormone found CRH?
hypothalamus
where is adrenocorticotropic hormone found ACTH?
anterior pituitary
what does ACTH do?
release of cortisol from adrenal cortex (zone fasciulata)
where is the prolactin inhibiting hormone found?
hypothalamus
where is prolactin (in absence of prolactin inhibitor) found?
anterior pituitary
what does prolactin do?
milk production
increase sensitivity to LH
where is the GHRH found?
hypothalamus
where is the GH found?
anterior pituitary
what does the GH do?
tissue growth
where is oxytocin found?
posterior pituitary
where is ADH/vasopressin found?
posterior pituitary
what does oxytocin do?
causes milk production
love hormone
uterine contraction (+ feedback loop)
what does ADH do?
H2O retention
what are the types of negative feedback?
action, hormone, plasma
what is action feedback?
change in vital signs provide - feedback
what is hormone feedback?
levels of hormone provide - feedback
what is plasma feedback?
level of substance in plasma provides - feedback
what are the normal levels for Ca++?
8.5-10.2 mg/dL
what are the normal levels for blood sugar?
100mg/dL
where is melatonin found?
pineal gland
what does the pineal gland regulate?
melatonin
circadian cycle
circa lunar cycle
what are the major endocrine glands?
hypothalamus
Pituitary
pineal
parathyroid
thyroid
thymus
adrenal
kidney
Pancreatic
ovary
testis
