GENERAL HISTOLOGY

Detailed explanation-1: -Skeletal muscles contract most quickly and also get fatigued that quickly.

Detailed explanation-2: -Type IIb (Fast-Twitch Low-oxidative Muscle Fibers) These fibers are larger in size, have a decreased blood supply, have smaller mitochondria and less of them, contract more rapidly, and are more adapted to produce energy anaerobically (without the need for oxygen) than slow-twitch muscle fibers.

Detailed explanation-3: -A Muscle Contraction Is Triggered When an Action Potential Travels Along the Nerves to the Muscles. Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a type of nerve cell called a motor neuron.