P-type ('P' for purkinje fibers) calcium channels play a similar role to the N-type calcium channel in neurotransmitter release at the presynaptic terminal, but are found in purkinje fibers in the electrical conduction system of the heart.
P-type ('P' for purkinje fibers) calcium channels play a similar role to the N-type calcium channel in neurotransmitter release at the presynaptic terminal. P-type ('P' for purkinje fibers) calcium channels are found in purkinje fibers in the electrical conduction system of the heart.