Unit 7: Animal Form and Function
Neurons, Synapses, and Signaling
coordinate information transfer within the body of a multicellular animal and often make up a
with different types of
Neuron Structure exercise:
Neurons maintains a voltage across its plasma membrane called a
of about -70 mV.
A stimulus may trigger a
that can yield an
of about 30 mV.
An action potential is
to a synaptic terminal.
Action Potential tutorial:
Many axons are insulated by a
sheath formed by Schwann
allowing action potentials to jump in a process called
Most neurons communicate with other cells at chemical
, where a presynaptic neuron releases chemical
stored in the synaptic
and can be either
postsynaptic potentials (EPSPs) or
postsynaptic potentials (IPSPs).
Jul 14, 2009