It is important to know how natural fibers are classified. Natural fibers are fibers from plant, animal and minerals. They are classified according to their origin.
Natural fibers are classified into three categories based on their origin: plant fibers derived from plants (e.g. cotton, linen), animal fibers obtained from animals (e.g. wool, silk), and mineral fibers which come from mineral sources (e.g. asbestos). Each type of natural fiber has its unique properties and characteristics which make them suitable for different purposes.
Man-made fibers such as nylon or rayon are classified as synthetic fibers. These fibers are created through chemical processes using raw materials such as petroleum or plant-based materials. Synthetic fibers often have specific properties such as durability, moisture-wicking, or stretchiness.
natural fibers are fibers gotten from natural sources like cotton. Natural fibers could be from both animal or plant sources. They are therefore classified under protein and cellulose fibers. They are usually shorter in length when compared to synthetic fibers. The longest natural fiber is silk.
Fibers can be classified based on their origin (natural or synthetic), composition (cellulose, protein, synthetic polymers), and structure (staple, filament, monofilament). They can also be classified by their physical properties, such as length, strength, and elasticity.
Pink-colored muscle fibers are typically classified as Type IIa fibers, also known as fast oxidative fibers. These fibers have a moderate resistance to fatigue and are capable of both aerobic and anaerobic energy production. They are well-suited for activities that require both strength and endurance, such as middle-distance running or swimming. The pink color is due to a higher myoglobin content compared to Type IIb fibers, which are more white and primarily anaerobic.
Natural fibres can be classified according to their origin. The vegetable, or cellulose-base, class includes such important fibres as cotton, flax, and jute.
Natural fibers are considered renewable resources because they are derived from plants and animals that can be regrown or replenished over time. Examples include cotton, wool, and hemp, which can be harvested without depleting the resources if managed sustainably. In contrast, nonrenewable resources are finite and cannot be replaced once depleted, such as fossil fuels and minerals. Therefore, natural fibers are not classified as nonrenewable.
Just a guess but the fibers in clothing. ( cotton fibers, polyester fibers, etc)
Fast twitch muscle fibers are characterized by their ability to generate quick, powerful bursts of strength and speed, making them ideal for activities like sprinting and weightlifting. They rely primarily on anaerobic metabolism for energy, which allows for rapid contractions but leads to quicker fatigue compared to slow twitch fibers. These fibers also have a lower density of mitochondria and capillaries, resulting in less endurance. Additionally, fast twitch fibers can be further classified into Type IIa (intermediate) and Type IIb (pure fast twitch) based on their oxidative capacity and fatigue resistance.
The fibers which are made by man are the synthetic fibers.
Andrenergic fibers release Norepinephrine and Cholinergic fibers release Acetylcholine.
Synthetic Fibers Manufactured Fibers