nervous system membrane action potential
Muscles and glands Neurons communicate with other neurons and stimulate both ___ and ___.
Synapses, cell bodies, dendrites Signals from other neurons are received at junctions called ___, located primarily on the ___ ___and ___, the receptive and integrative regions of the neuron.
Axon hillock, action potential The area where the axon emerges from the soma (cell body) is called the ___ ___.
This is also where the outgoing signal, called a/an ___ ___ is generated.
Collaterals, terminals An axon can branch, forming many axon ___. At the end, axons branch to form many axon ___.
Schwann cells What support cell forms the myelin sheath?
Integral proteins What structures in the cell membrane function as ion channels?
1) Charge
2) Size
3) How much water the ion can attract and hold What three characteristics of ions are important for selectivity?
Nongated Channels can be classified as either gated or nongated channels. A Na+ channel that is always open would be classified as a/an ___ channel.
Into Would Na+ ions move into or out of the neuron through these cannels?
1) Found along the axon
2) Important for action potential
3) Opened and closed by gates What are the characteristics of voltage-gated Na+ channels?
130mV Voltage-gated K+ channels open at what voltage?
Cell bodies, dendrites, axons Where are nongated channels located on the neuron?
Cell bodies, dendrites Where are chemically-gated channels located on the neuron?
Axon Hillock, Nodes of Ranvier Where are voltage-gated channels located on the neuron?
Resting What potential type is dependent on nongated ion channels?
Synaptic What potential type is dependent on chemically-gated ion channels?
Action What potential type is dependent on voltage-gated ion channels?
The axon Myelin is found around which part of the neuron?
Electrically insulates, protects The tightly wound cell membrane around the axon forms the myelin sheath and
Synapses, cell bodies, dendrites Signals from other neurons are received at junctions called ___, located primarily on the ___ ___and ___, the receptive and integrative regions of the neuron.
Axon hillock, action potential The area where the axon emerges from the soma (cell body) is called the ___ ___.
This is also where the outgoing signal, called a/an ___ ___ is generated.
Collaterals, terminals An axon can branch, forming many axon ___. At the end, axons branch to form many axon ___.
Schwann cells What support cell forms the myelin sheath?
Integral proteins What structures in the cell membrane function as ion channels?
1) Charge
2) Size
3) How much water the ion can attract and hold What three characteristics of ions are important for selectivity?
Nongated Channels can be classified as either gated or nongated channels. A Na+ channel that is always open would be classified as a/an ___ channel.
Into Would Na+ ions move into or out of the neuron through these cannels?
1) Found along the axon
2) Important for action potential
3) Opened and closed by gates What are the characteristics of voltage-gated Na+ channels?
130mV Voltage-gated K+ channels open at what voltage?
Cell bodies, dendrites, axons Where are nongated channels located on the neuron?
Cell bodies, dendrites Where are chemically-gated channels located on the neuron?
Axon Hillock, Nodes of Ranvier Where are voltage-gated channels located on the neuron?
Resting What potential type is dependent on nongated ion channels?
Synaptic What potential type is dependent on chemically-gated ion channels?
Action What potential type is dependent on voltage-gated ion channels?
The axon Myelin is found around which part of the neuron?
Electrically insulates, protects The tightly wound cell membrane around the axon forms the myelin sheath and