Homeostasis and response (Paper 2) Flashcards
Define homeostasis
Regulation of internal conditions of a cell or organism to maintain optimum conditions for function in response to internal or external changes
Homeostasis maintains…
Optimal conditions for enzyme action and all cell functions
What internal conditions does homeostasis control
- Blood glucose concentration
- Water levels
- Body temperature
What are Electronic responses
Nervous signal
What are Hormones
A chemical substance that controls and regulates the activity of certain cells, organs or processes
Homeostasis control systems
- Receptors
- Coordination centers
- Effectors
Receptor function
- Detect stimuli
Coordination center function
- Receive and process information from the receptors
Effector function
- Muscles or glands that bring about a response which restore optimum levels
The nervous system allows humans to…
react to their surroundings and coordinate their behavior
What is the central nervous system made up of
- The Brain
- The Spinal Cord
How does information from the receptors reach the Central Nervous System
Information passes along Neurons as Electrical Impulses
