Cell Communication Flashcards
Extracellular fluid (ECF)
Body fluid that is not contained in cells
Homeostasis
Tendency of organisms to regulate internal environment
Homeostatic control
Stabilization of the stasis
Variable
Change in a stable parameter
Stimulus
Signal in reaction to an event occurring which produces a change in a variable
Receptor
Protein that detects the signal
Control center
Determines set point for a variable, analyzes the signal and then coordinates the response
Effector
Carries out the response determined by the control center
Paracrine secretions
Chemicals that work locally by affecting all cell types other than those secreting them
Autocrine secretions
Chemicals that work on the same cell that release them
Hormones
Chemical signals used for long distance communication