Homeostasis Flashcards
What is homeostasis?
maintaining a stable internal environment. e.g temperature
What is a stimulus
A change in the environment e.g Candle
Explain how a negative feedback helps to maintain a stable internal environment
When the level of something is too high or too low your body uses negative feed to bring it back to normal. It counteracts change.
What makes up the CNS and what does it do?
Made up of the brain and spinal cord
What is a synapse?
A gap between neurons
What is the purpose of a reflex action?
In order for a very quick response.One that does not need the involvement of the brain. This is a reflex action.
What is a reaction time?
The length of time taken for a person or system to respond to a given stimulus or event.
Give one thing the cerebral cortex is responsible for
Conscious activities . E.g intelligence, memory etc.
