last authored:
last reviewed:
Muscle accounts for over one-third of the body's mass and play a number of different key roles.
red muscle - lots of microtubules, weak, slow, sustained - S motorneurons
intermediate muscle - intermediated - FR motoneurons
white - few microtubules, strong, fast, fatiguable - FF motoneurons
Fasicles
Fibres
Fibrils
According to Dr Brownstone, the brain views muslces as against gravity - extensors.
extensor muscles are antigravity muscles - gastrocnemius
rest are flexors