Building Blocks
Part of the neuron that synthesizes neurotransmitters.
What is soma/cell body?
Point of contact/site of communication between two neurons.
What is synapse.
Allows a small number of ions through at a slow, continuous rate.
What is a leak channel.
These generate myelin in the CNS and wrap around axons for conduction/protection.
What are oligodendrocytes.
Site where action potential is initiated.
Part of the neuron that facilitates rapid conduction of nerve impulses.
What are nodes of ranvier.
Receives signals (NTs) from presynaptic terminal.
What is postsynaptic membrane.
Opens in response to a stimulus and closes when stimulus is removed.
What is a gated channel.
Myelinating cells in the PNS that fight bacteria and provide protection.
Period immediately following an action potential.
What is absolute refractory period.
Receives input from other neurons.
What are dendrites.
Transmission site of the neuron.
What is presynaptic terminal.
Opens in response to chemicals, temperature changes, or mechanical forces.
What is a modality-gated channel.
Specialized cells that clean up extra potassium and signal blood flow for smooth muscle and blood vessels.
What are astrocytes.
Period after absolute refractory period.
What is relative refractory period.
Sends information to other neurons.
What is axon.
Swollen end of the axon and home of synaptic vesicles.
What is axonal bouton.
Opens when a neurotransmitter binds to a channel receptor on a postsynaptic cell membrane.
Cells that clean up debris and produce neurotrophic support.
What are microglial cells.
Depolarization occurs in small area of cell membrane.
Space between neurons.
What is synaptic cleft.
Provides storage for neurotransmitters.
What are synaptic vesicles.
Opens when electrical potential changes across the cell membrane.
What is voltage-gated channel.
Voltage-gated Na+ and K+ channels are closed.
What is resting potential.