cell communication
Cell to Cellcommunication is criticalfor the function growth of cells
DirectContact communicationthroughcelljunitions Materials in the cytoplasm dissolve
freelybetween adjacentcells GapJunctions in AnimalsPlasmodesmata in plants
Localsignaling asecreting cell releases a chemicalmessage ligand that travels a
short distancethrough theextracellularfluid
Paracrinesignalingsecretory cellreleaselocalregulators
viaexocytosis to anadjacentcell
SynapticSignaling occursinanimalnervoussystems
Neurons secreteneurotransmitters
chemicals diffuseacrossthe synaptic cleft
spacebetween nerve targetcell
stimulates thetargetto dosomething
Juxtaposition signaling chemicalmessengerpassed
between 2 connectedcells
LongDistanceSignaling hormones areused forlongdistancesignaling
Plantsreleasehormones through vasculartissue air
Endocrine signaling someligandstravel a long distancebetweensending relieving
cells Ex Insulin
SetPoints valuesfor various physiological conditionsthat the body tries tomaintain
ex BodyTemperature
homeostasis thestate of relatively stableinternalconditionsthroughfeedbackloops
VegativeFeedback reducestheeffectofthestimulus mostcommon
ex Stimulus Heat Receptortemp receptors Effector SweatGlands Response swea
stimulus Cold Receptortemp receptors Effector muscles Response Shivering
PositiveFeedback increasestheeffect
of astimulus
ex laborduringchildbirth fruitripening
Stimulus babypushes on cervix Diseasewhenthe
body isunable to maintai
Receptor nerve cells incervix homeostasis
Effector Pituitarygland releases oxytocin cancer Bodylannotregulatecelldivision
Diabetes
Response Oxytocin stimulatescontractions Bodycannotregulatebloodglucos
levels
Inordertomaintainhomeostasis cellsinmulticellular organisms mustcommunicate
Communication occursin signal transduction pathways
Cell to Cellcommunication is criticalfor the function growth of cells
DirectContact communicationthroughcelljunitions Materials in the cytoplasm dissolve
freelybetween adjacentcells GapJunctions in AnimalsPlasmodesmata in plants
Localsignaling asecreting cell releases a chemicalmessage ligand that travels a
short distancethrough theextracellularfluid
Paracrinesignalingsecretory cellreleaselocalregulators
viaexocytosis to anadjacentcell
SynapticSignaling occursinanimalnervoussystems
Neurons secreteneurotransmitters
chemicals diffuseacrossthe synaptic cleft
spacebetween nerve targetcell
stimulates thetargetto dosomething
Juxtaposition signaling chemicalmessengerpassed
between 2 connectedcells
LongDistanceSignaling hormones areused forlongdistancesignaling
Plantsreleasehormones through vasculartissue air
Endocrine signaling someligandstravel a long distancebetweensending relieving
cells Ex Insulin
SetPoints valuesfor various physiological conditionsthat the body tries tomaintain
ex BodyTemperature
homeostasis thestate of relatively stableinternalconditionsthroughfeedbackloops
VegativeFeedback reducestheeffectofthestimulus mostcommon
ex Stimulus Heat Receptortemp receptors Effector SweatGlands Response swea
stimulus Cold Receptortemp receptors Effector muscles Response Shivering
PositiveFeedback increasestheeffect
of astimulus
ex laborduringchildbirth fruitripening
Stimulus babypushes on cervix Diseasewhenthe
body isunable to maintai
Receptor nerve cells incervix homeostasis
Effector Pituitarygland releases oxytocin cancer Bodylannotregulatecelldivision
Diabetes
Response Oxytocin stimulatescontractions Bodycannotregulatebloodglucos
levels
Inordertomaintainhomeostasis cellsinmulticellular organisms mustcommunicate
Communication occursin signal transduction pathways
