Homeostasis Flashcards
condition in which body’s internal environment remains constant within physiological limit
Homeostasis
proper functioning of body cells depending on the equilibrium
Homeostasis
Each body system contributes to the maintenance of this
Homeostasis
What systems controls the Homeostatic Mechanism
Nervous and Endocrine
detects imbalance and send messages in the form of nerve impulse
Nervous System
correct imbalance by secreting hormones
Endocrine System
Monitored/ re-monitored
Controlled Condition
Three Basic components of feedback mechanism
Receptor
Control Center
Effector
detect changes in a controlled condition
Receptor
send information to the control center
Receptor
brain/specific organ
Control Centre
set the range for a particular “controlled condition”
Control Center
evaluate input received from receptor and generate output commands
Control Centre
receive output from the control centre
Effectors
produce response that changes the controlled conditions
Effectors
either muscle (contraction) or glands (secretion)
Effectors
a response that reverses or eliminates the change in a controlled condition
Negative Feedback
response that strengthens and enhances the change
Positive feedback
Childbirth (Oxytocin stimulates contractions)
Positive feedback
