Neurotransmitters
via chemicals called neurotransmitters, expressed at sites called synapses, which are tiny gaps between a neuron and another neuron or a muscle cell.
synapse
It is called involuntary muscle or smooth muscle.
Muscle fiber is another name for muscle cell. And each one is wrapped in connective tissue that is called endomysium.
synergist
The "movable" end of a muscle is called the insertion. The "immobile" end is called the origin. Shortening, or contraction, of a muscle causes the origin and insertion to become closer to one another.
There are two chemicals that would make the best muscle relaxant. The names of the two chemicals that would make the best muscle relaxant are Actin and Myosin.
heart This muscle is called cardiac muscle. Each cell can beat on its' own if in a sterile dish. If it touched another, they will beat together.
myofibril
skeletal muscle, smooth muscle, cardiac muscle
Another name for the human heart is a cardiac muscle.
Not in language. Cells communicate with other cells on a rudimentary basis by releasing various chemicals that reflect their condition and functioning. Nerve cells can directly signal other nerve cells, and the sensory or muscle cells they are linked to.