The origin of "a body full of tendons" comes from a common saying: Even if a horse is thin, its whole body is full of tendons. It is used to describe a person's strength.

The shank meat is the muscle on the thigh. It is wrapped by a meat membrane and contains tendons. It has moderate hardness and regular texture. It is most suitable for braised meat. To be precise, it should be a small piece of meat in the middle of the hind leg that is half meat and half tendon. Of course, this is what the company calls it. Generally, the hind leg meat on the market is considered tendon, with a large amount of connective tissue distributed between the muscles.

Ton meat is rich in protein, and its amino acid composition is close to the needs of the human body. It can improve the body's disease resistance. It is especially suitable for people who are growing, developing, and recovering from surgery and illness in terms of supplementing blood loss and repairing tissues. It has the effects of replenishing qi, nourishing the spleen and stomach, strengthening muscles and bones, resolving phlegm and wind, quenching thirst and salivation. It is suitable for people with weak qi, shortness of breath, physical weakness, weak muscles, anemia, chronic illness, and yellowish and dizzy complexion.

The difference between tendons and muscles is:

Muscles are a general term, while tendons specifically refer to the muscles on the upper thighs and arms. Both tendons and muscles can be used to describe a person's strength, such as: This person is covered in tendons/muscles.

The human body has 639 muscles. It is composed of approximately 6 billion muscle fibers, with the longest muscle fiber reaching 60 cm and the shortest only about 1 mm. Large muscles weigh about two kilograms, while small muscles weigh only a few grams. The average person's muscles account for about 35 to 45 percent of their body weight.

Reference for the above content: Baidu Encyclopedia - tendon meat