Human Nervous System Definitons Flashcards
Central Nervous System
The part of the nervous system where information is processed. It is made up of the brain and spinal cord
Hyperopia
Long sighted (can not see objects up close properly)
Motor neurones
Carry impulses from the CNS to the effector organs
Myopia
Short sighted (can not see far distances)
Nerve
Hundreds / thousands of neurones
Neurones
Basic cells of the nervous system that carry electrical impulses around the body (Nerve cells)
Reflex arcs
Bring about a reflex action. Involve the sense organ, sensory neurone, relay neurone and motor neurone
Reflexes
Rapid automatic responses of the nervous system - don’t involve conscious thought
Stimuli
Changes in the environment