Homeostasis Flashcards
the ability of the human body to stabilize internal conditions
homeostasis
the ideal value of a given variable
set point
the range in which a variable fluctuates normally as it maintains homeostasis
normal range
a sensory receptor detects a change, that information is sent to control center, control center sends information back to decrease production
negative feedback
hormones are released by what 4 tissues
epithelial, muscle, connective, neural
neurohormones effect the body on a ____ scale
global
neurotransmitters effect the body on a ___ scale
local
chemical messenger that targets cells different than itself but in the same area
paracrine
chemical messenger that effects either the same cell or the same type of cell as itself
autocrine
chemical messenger that is located on the plasma membrane of a cell and two cells must come in contact with each other
juxtacrine signaling
a sensory receptor detects a change, that information is sent to control center, the control center sends information back to area to increase production
positive feedback
a stimulus causes a response before a change in the variable
feedforward regulation
adjusting to a change that is prolonged
acclimation/acclimatization
any biological process with a 24 hour cycle–usually trained by light cycle
circadian rhythm
when gain equals loss it is a ___ balance
stable