Homeostasis P1 Flashcards
What does homeostasis do?
Maintains optimal conditions for enzyme action and cell functions
What does homeostasis control?
Blood glucose concentration, body temperature and water levels
What is involved in the nervous system?
The brain and spinal cord
What is the peripheral nervous system?
Nerves that carry information to or from the central nervous system
Define homeostasis
Maintenance of a constant internal environment in the body
What do receptors do?
Detect changes in the environment
What is the coordination centre?
Things like the brain which processes information from receptors around the body
What are effectors?
Muscles or glands which the coordinator generates a response in
What is a negative feedback loop?
Process where optimum levels are restored
What is the optimum body temp?
37°C
What do all control systems include?
Cells called receptors, the coordination Centre and effectors
What are some examples of coordination centres?
The brain, spinal cord or pancreas
What are nerve cells called?
Neurons
What are nerve cells adapted to do?
Carry electrical impulses
What is a bundle of neurones called?
A nerve