Chapter - Two Flashcards
(13 cards)
What are the two basic divisions of the nervous system
Central nervous system (cns) and peripheral nervous system (phs)
The brain and spinal cord are a part of
The central nervous system (cns)
Everything outside the brain and the spinal cord is known as
The peripheral nervous system (pns)
What are the three types of neurons
Sensory neurons, motor neurons and interneurons
Name the order of neurons to pick up a glass of water
Sensory neuron, interneuron, and then motor neuron
What 4 structures are in a neuron
Soma, dendrites, axon, terminal buttons
What contains the nucleus
The soma (the cell body)
What are branched, treelike structures attached to the soma of a neuron; receive information transmitted across a synapse
Dendrites
What are long, thin, cylindrical structures
Axons
Axons carries information forms cell body to what
Terminal buttons
What surrounds axons and insulates them
Myelin sheath
What are buds at the end of a branch of an axon; form synapses with another neuron
Terminal buttons
Secrete chemicals are called
Neurotransmitters
