Chapter 25 Section 1 And 2 Flashcards
Peripheral nervous system
Is all the parts of you nervous system except for the brain and spinal cord
Neuron
Is a nerve cell that is specialized to transfer messages in the form of fast moving electrical energy
Nerve
Is a collection of axons bundled together with blood vessels and connective tissue
Brain
Is the main control center of the nervous system
Integumentary system
Protects the body form damage
Reflex
An involuntary and almost immediate movement in response to a stimulus
Feedback mechanism
Is a cycle of events in which information from one step controls or affects the previous step
Retina
A layer of light sensitive cells.
Cochlea
A coiled tube that is found in the inner ear and that is essential to hearing.
Central nervous system
Is your brain and spinal cord