Two classes of electrodes are employed in muscles, intramuscular
electrodes and epimysial electrodes. Both electrode types
are in direct contact with the muscle but usually separated
by muscle tissue from the innervating motor nerves.
Intramuscular Stimulating Electrodes.
Photograph of two intramuscular electrodes with helical
leads, mounted in hypodermic needles, on with multistranded
lead wire (Top) and with single strand wire (Bottom)
Tissue Sections.
Schematic of location of tissue sections taken from the implanted muscle relative
to the position of the electrode lead and tip.