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HORMONES (TYPES OF HORMONES (AMINE (smaller than peptide, can cross the…
HORMONES
TYPES OF HORMONES
STEROID
derived from cholesterol
move carrier molecules in the blood
rececptors
membrane-bound
intracellular
example
testoterone
estrogen
cortisol
aldosterone
AMINE
smaller than peptide
can cross the membrane
derived from
tyrosine
catecholamines bind to surface receptor
thyroid hormone bind to intracellular receptor
PEPTIDE
bind to cell surface
mRNA
inactive form of peptide hormone
example
TRH
ACTH
GH
HYPOTHALAMIC/ PITUITARY PATHWAY
PITUITARY GLAND
connected to brain/hypothalamus by the infundibulum
posterior pituitary
hormones produced in the hypothalamus
released and stored in the pituitary
oxytoxin
:baby::skin-tone-2:
uterine contraction
milk ejection
vasopressin
:potable_water:
ADH
sodium and water retention
anterior pituitary
HORMONES
hypothalamus
anterior pituitary
target organ
TRH
TSH
THYROID GLAND
THYROID HORMONES
T3/T4
:hamburger:increase metabolism
activate specific genes in many cells of the body
CRH
ACTH
ADRENAL CORTEX
CORTISOL
in response to stress :scream:
:arrow_up: gluconeogenesis: :arrow_up: blood glucose level
GHRH
GH
Liver
insuline-like growth factors (IGFs)
:arrow_up: growth
:arrow_up: metabolism
:couple:: activate specific gene
GnRH
GONADOTROPHINS
FSH
LH
ENDOCRINE CELL OF THE GONADS
ANDROGEN :boy::skin-tone-2:
gamete production of gametes :man-boy:
secondary sex characteristics :woman-girl:
ESTROGENS
PROGESTERONE :girl::skin-tone-2: