Boobies!!! Flashcards
(42 cards)
name 6 endocrine producing areas of body
pituitary thyroid adrenals gonads parathyroids pancreas
pathology associated with pituitary and hypothalamus (3)
hyperprotinaemia
hypopituitarism
pituitary tumours
pathology associated with adrenals (4)
addisons
cushings
conns
phaechromocytoma
different types of hormones (4)
polypeptides
glycoproteins
steroids
amines
sequence leading to polypeptide release
neural/endocrine stimulation of target cell > inc transcription from DNA to mRNA > peptide product > usually prohormone > golgi > hormone
4 hormone binding proteins
thyroxine-binding globin (TBG) cortisol-binding globin (CBG) sex hormone binding globin (SHBG) IGF-binding hormone (IGF-BP3) prealbumin and albumin
** first 4 very specific, high affinity with limited capacity, albumin is non specific and low affinity
paracrine is when
hormone acts locally
autocrine is
acts on self
lipid soluble hormones
steroids
thyroid hormones (T3 T4)
nitric oxide
therefore diffuse across membranes and mostly bound to proteins in serum
water soluble hormones
amines
peptides
eicosanoid (prostoglandins and leucotrines)
amine hormones include
catelamines - epinephrine, norepinephrin, dopamine
hitamines
seratonin and melatonin
example of peptide hormone
TSH
insulin does what to liver and adipose
to produce:
liver- glycogen
adipose - triglycerides
water soluble hormone pathway
binds receptor on outer membrane > activeates G protein > G protein activates adenylate cyclase > adenylate cyclase converts ATP into cAMP > cAMP acts as secondary messenger and activates protein kinase > protein kinase phosphorylates other enzymes
what deactivates cAMP
phosphodiesterase
synergenic is when
2 hormones work better together than 2 acting alone
which systems use positive feedback systems
oxytocin + contaction + oxytocin
LH + ovulation
pituitary sits where
in sella turcica of sphenoid bone
embryology: pituitary comes from
ectoderm
what is a tropic hormone
a hormone that influences another endocrine gland
7 anterior pituitary hormones
GH TSH FSH LH Prolactin corticotrophin melanocyte stimulating hormone
lipid soluble hormones work by
altering gene expression (diffuse into cell, bind receptor, attaches so DNA, mRNA, peptide)
nitric oxide does what
acts as vasodilator
posterior hormones
ADH (vasopressin)
oxytocin