A&p 2 exam 1 Flashcards
Direct communication
Cells as GAP junctions
2 cells sharing cytoplasm
not very broad communication
has ions, small solutes, lipids, souble materials
ex: the heart
Paracrine communication
spits out a signal
Talks to cell close to it
not a broad communication
ex: the digestive tract
Endocrine communication
signals are sent through blood vessels
Goes through the whole body
Very wide communication
Has tons of hormones
synaptic communication
Includes the nervous system
it is both broad and short communication
-has neurotransmitters
Pars distalis
secretes pituitary hormones
pars intermedia
secretes MSH
hUMANS DONT HAVE THIS
What does the posterior lobe of the puitary gland do?
Releases ADH and oxytocin
Hypothalamic control of the PG
ADH and oxycotin are made in the hypothalamus
-hypo produce regulatory hormones/ tells anterior lobe to make its hormones
- control of sympathetic medullae
Releasing hormones
-TRH
-CRH
GnRH
TRH
Tells thyroid to do its job
- goes through the bloodstream
CRH
Tells pituitary gland to make ACTH
- IT IS CONNECTED TO ADRENELAN
Hormonal control of anterior lobe
- Releases hormone
- Tells pituitary gland to make hormone
- Goes to specific hormone
-makes hormones
-goes back to hypothalamus and PG (TELL IT TO COOL OFF)
Prolactin
Releases milk
-it is regulated by PRH (REGULATION)
-PIH (INHIBITORY)
-PIH is made from dopemine
Growth hormone
-keeps us healthy
allows cellular growth
-makes sure tissue is healthy and maintained
-liver produces IGF’S (PROTEIN) THAT SLOWS DOWN GnRH release (slows down puberity)
Anterior lobe of pituitary hormones
-TSH(TURNS ON METABOLISM KEEPS US WARM
-ACTH(TURNS ON ADRENAL GLAND)
-FSH/LH (REGULATION OF REPRODUCTIVE TRACT
-PROLACTIN (MILK AND GROWTH)
PARS INTERMEDIA OF PITUITARY HORMONES
MSH: HAPPENS EARLY ON, GIVES ANIMALS PIGMENTATION
POSTERIOR LOBE hormones of pituitary gland
ADH- Prevents you from peeing, your body needs enough water.
OXT- Tied to olympic system
WHAT IS thyroid follicle cells surrounded by
surrounded by simple cubiodial epethelial cells
what are thyroid cells produced by?
simple cubiodal cells
Tyrosine
amino acid in your protein
- helps communicate between nerve cells
-helps production of noreheprenephine and eprenephin e
-production of melanin