Changes

Cardiac muscle is striated but uninucleate and highly vascularized. There are gap junctions concentrated at intercalated discs.

Cardiac muscle is striated but uninucleate and highly vascularized. There are gap junctions concentrated at intercalated discs.

'''Myogenic Contraction''' spreads cell to cell and does not depend on nervous imput to individual cells. Areas of low electrical resistance allow rapid spread of action potentials. Contraction is regulated by autonomic neurons and circulating hormones. The contractile mechanism is similar to skeletal muscle, an increase in cytosolic Ca. There is a Ca influx across the plasma membrane AND the sarcoplasmic reticulum. The action potential has a prolonged plateau phase.

'''Myogenic Contraction''' spreads cell to cell and does not depend on nervous input to individual cells. Areas of low electrical resistance allow rapid spread of action potentials. Contraction is regulated by autonomic neurons and circulating hormones. The contractile mechanism is similar to skeletal muscle, an increase in cytosolic Ca. There is a Ca influx across the plasma membrane AND the sarcoplasmic reticulum. The action potential has a prolonged plateau phase.

==Tendon==

==Tendon==