Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
CNS |
the part of the nervous system that consists of the brain and spinal cord
|
|
peripheral nervous system |
the neurons that connect the central nervous system to the rest of the body, including the muscles and glands |
|
Neurons |
A nerve cell; the basic building block of the nervous system |
|
Cell Body |
the part of a neuron that produces the energy needed for the activity of the cell |
|
Dendrites |
the branchlike extensions of a neuron that receive impulses and conduct them toward the cell body |
|
Axon |
a long tube like structure attached to a neuron that transmits impulses away from the neuron cell body |
|
Myelin |
a white, fatty substance that insulates axons and enables rapid transmission of neural impulses |
|
Axon Terminals |
small fibers branching out from an axon |
|
Synapse |
the junction between the axon terminals of the sending neuron and the dendrites of the receiving neuron |
|
Neurotransmitters |
a chemical messenger that carries impulses across the synaptic gaps between neurons
|
|
Spinal Cord |
a column of nerves within the spine that transmits messages to and from the brain |
|
Somatic Nervous System |
the division of the peripheral nervous system that connects the central nervous system with sensory receptors, muscles, and the skin |
|
Autonomic Nervous System |
the subdivision of the peripheral nervous system that regulates body functions, such as respiration and digestion |