In dark meat, the red muscle fibers are red due to

Myosin heads move and as they move they pull the Actin Filaments over them. This is called

Brachial Plexus is C4-T1.

Myelin sheath is formed by

Cross bridges means that the Actin filament and the Myosin Filament are in contact with each other.

A collection of ventral rami of the spinal nerves, after leaving the spinal cord, will make a

Chemical Synapse is found in the

Each Fascicle is surrounded by Endomysium.

Treppe is staircase phenomenon

Absence of a reflex is hyporeflexia.