Neurons
This part of the neuron receives incoming signals.
Dendrites
These neurons carry information from receptors to the CNS.
sensory (afferent) neurons
An action potential is this type of signal.
Electrical impulse
The primary function of myelin is to do this.
insulate the axon
The tiny space between neurons at a synapse.
Synaptic Cleft
This region contains most organelles.
These neurons carry commands from the CNS to muscles and glands.
motor (efferent) neurons?
Maintains the resting membrane potential
Sodium Potassium Pump
These gaps in the myelin sheath are critical for rapid conduction.
Nodes of Ranvier
These structures store nuerotransmitters
Synaptic Vesicles
Action potentials are typically initiated at this structure.
Axon Hillock
These neurons are found entirely within the CNS.
Potassium has a ______ charge
Positive
The jumping of action potentials from node to node is called this.
saltatory conduction
After release, neurotransmitters move across the synapse by this process.
Diffusion
This structure carries signals away from the cell body.
Axon
The most common type of neuron because they process information.
Interneuron
During depolarization, this ion enters the neuron.
Sodium (Na+)
A larger axon diameter generally causes this effect on conduction speed.
Faster conduction
Neurotransmitters bind to these structures on the postsynaptic membrane.
Receptors
This structure sends signals to the next cell by releasing neurotransmitters.
Axon Terminal
These sensory neurons detect information from skin, muscles, and joints.
Somatic Sensory Neurons
What is potassium (K⁺)?
potassium (K⁺)
Hyperpolarization occurs because too much of this ion leaves the cell.
During the absolute refractory period, this amount of stimulus can trigger another action potential.
None