Homeostasis and Feedback Mechanisms in the Body

Set Points

Values for physiological conditions the body maintains.

Normal Range

Fluctuation limits around a set point.

Set Points

Values for physiological conditions the body maintains.

Normal Range

Fluctuation limits around a set point.

Homeostasis

Stable internal conditions in an organism.

Feedback Loops

Mechanisms for maintaining homeostasis.

Stimulus

Variable causing a physiological response.

Receptor/Sensor

Organs detecting stimuli for response.

Effector

Muscle or gland responding to stimuli.

Response

Change that modifies the effect of a stimulus.

Negative Feedback

Reduces stimulus effect to maintain balance.

Positive Feedback

Increases stimulus effect for specific outcomes.

Body Temperature Set Point

Normal temperature is 98.6℉ with a range.

Sweat Glands

Effectors that cool the body through sweat.

Muscles

Effectors that generate heat through shivering.

Oxytocin

Hormone stimulating contractions during childbirth.

Signal Transduction Pathways

Cell communication methods for maintaining homeostasis.

Homeostatic Imbalance

Failure to maintain stable internal conditions.

Genetic Disorders

Inherited conditions affecting homeostasis regulation.

Drug Abuse

Substance misuse impacting physiological balance.

Cancer

Disease from uncontrolled cell growth.

Diabetes

Inability to regulate blood glucose levels.

Child Labor

Positive feedback mechanism during childbirth.