Chondrocyte
Crosslinking agents, such as formaldehyde or glutaraldehyde, are often used to harden compounds around protein fibers by forming chemical bonds between the protein molecules. This process helps to stabilize the structure of the protein fibers and prevent degradation.
The solid protein fibers, which form a mesh over wounds, are called "fibrin".
Regenerated fibers are typically made from natural materials such as cellulose (e.g. viscose, lyocell) or protein (e.g. soy or milk protein). These fibers undergo a process of dissolving the raw material and spinning it into fibers, offering a sustainable alternative to synthetic fibers.
Elastic fibers made of the protein elastin has a coiled structure which allows it to stretch and recoil. Fibers can stretch up to 150 percent of their relaxed state length without breaking.
muscle fibers
Protein fibers help to build and to repair body tissues.
collagen
Collagen
Spindle fibers.
Nucleus
Rabbit muscle fibers are classified as white due to their high content of fast-twitch muscle fibers, which are adapted for quick, powerful bursts of activity. These fibers contain less myoglobin, the oxygen-binding protein that gives muscles a darker color, and have fewer blood vessels than slow-twitch fibers. As a result, white muscle fibers rely more on anaerobic metabolism, enabling rapid contractions but leading to quicker fatigue. This adaptation is advantageous for activities like sprinting or jumping, which are common in rabbits.
Fibrous protein