Nervous Flashcards
What does ATP do?
Power contractions
ATP
Adenosine triphosphate
What are spinal nerve bundles of?
Nerve fibers which are axons and dendrites
What is synapse?
Structure that allows neurons to pass signals on
What happens when impulse reaches axon?
Releases chemical neurotransmitters into synapse
Where is a stimulus picked up?
Dendrites which sent through cell body along axon terminal branches
What is an axon?
Extension that says impulse from neuron body to axon terminal
What is a dendrite?
Receptor that gets nerve impulses
Anatomy of a neuron
Cell body nucleus, most organelles and nerve fibers
Neurons
Electrical impulses that gather processed info
Autonomic division
Involuntary controls muscles, smooth muscles and glands of organs systems
Somatic division
Voluntary controls skeletal muscles
What is the spinal cord compared to?
Multiple lane highway, which connects to brain
How does the brain get a motor response?
Internal and external environments
What does the CNS contain?
Brain and spinal cord