Cells that transmit electrical message from one area of the body to another area?
What are neurons.
100
The junction or point of close contact between neurons.
What is synapse?
100
Spinal Nerves and Cranial Nerves are located
Where is Peripheral Nervous System
100
Chief positive ion found outside of the neuron during its resting state.
What is sodium?
100
How many neurons does the human have?
What is Billions
200
End of neuron that releases neurotransmitters away from the cell body.
What is axon
200
What are changes that occur within or outside the body, that affect nervous system functioning.
What is stimuli?
200
Involves Involuntary Responses to Internal Stimuli (breathing, digestion, etc)
What is Autonomic Nervous System
200
Which part of the nerve cell sends the impulse to the axon terminals?
What is the axon?
200
Name the two divisions of the Nervous System
What is CNS & PNS
300
End of neuron that conducts electrical currents toward the cell body.
What is the dendrite?
300
Chemicals released by neurons that stimulate other neurons, muscles, or glands.
What are neurotransmitters?
300
Carries impulse from skin, skeletal muscles, and joints to the brain
What are Sensory Neurons
300
The chief positive ion found inside a neuron during its resting state.
What is potassium?
300
The sense of touch is part of which division of the nervous system
What is PNS
400
White, fatty material that covers long nerve fibers, protecting and insulating the fibers, as well as increasing the speed of impulse transmission.
What is the myelin?
400
State in which the polarity of the neuron is reversed as sodium ions rush into the neuron.
What is depolarization?
400
Conscious control of skeletal muscles
What is Somatic Nervous system
400
The difference in electrical charge (voltage) across a cell's plasma membrane due to the differential distribution of ions.
What is membrane potential?
400
The purpose of the myelin sheath.
What conducts electricity to save ATP?
500
Specialized cells that myelinate the fibers of neurons found in the PNS.
What are Schwann cells.
500
Electrical condition of the plasma membrane of a resting neuron when it is inactive. Has fewer positive ions sitting on its inner face than on its outer face.
What is polarized?
500
Resting & Digesting, Fight or Flight
What is Sympathetic Division
500
Process by which ATP is used to move sodium ions out of the cell and potassium ions back into the cell; completely restores the resting conditions of the neuron.
What is the Sodium Potassium Pump?
500
The teenage brain has not yet developed this region, making it difficult to consider the consequences of their actions.