Is hair dead cells? Or living cells? What about nails?

1. Hair is a dead cell, which is an organic matter that grows from the keratinization of the hair roots.

2. The nail is composed of two parts, living cells and dead cells, which grow out and break away from the finger capillaries.

The parts of the web (the parts that are bloodless, whitish, and can be cut off) and the nail deck are dead cells, and the rest of the parts are living cells.

Hair is dead cells. 1.The main component of hair is keratin, which accounts for about 97%.

Keratin, on the other hand, is made up of amino acids. 2.Oriental hair is coarse and black, hard and heavy, because it contains more carbon and hydrogen particles, so the color is dark.

Western hair is light and soft, and its color is lighter because it contains less hydrocarbon. 3.The keratin that makes up the epidermis of hair is made up of more than 20 amino acids arranged vertically.

4.Structure of the hair: Each hair is composed of the epidermal scales, cortex, and medulla.

The epidermal scale layer is the outermost layer of the hair and usually consists of 2 or 4 layers of scales. The epidermis is usually translucent or colorless, so it allows natural hair color to shine through; The cortex makes up 80% of the hair, and natural pigmentation is caused here, and the natural hair color is due to it; The medullary layer is located in the center of the head and is made up of many small bubbles.

The nail has two parts, living cells and dead cells, which grow out and are separated from the capillary network of the finger (the part that is not bloody, whitish, and can be cut off), and the surface layer of the nail is dead cells; The rest are living cells.

Hair is a living cell that can be regenerated, while nails are a type of human bone that belongs to connective tissue and its main component is keratin.

1. Hair is a dead cell, which is an organic matter that grows from the keratinization of the hair roots.

2. The nail is composed of two parts, living cells and dead cells, which grow out and are separated from the capillary network of the finger (the part that has no blood color, is whitish, and can be cut off), and the nail deck is dead cells, and the other parts are living cells.

Hair is a living cell, formed by the keratinized growth of scalp cells, and apoptotic hair falls out. The hair is composed of cortex, epidermis and medulla, and the fur cortex is the main component of hair, which is composed of elongated cells parallel to the long axis of the hair, in which there are about 10 mm of tense filaments and interfibrous matrix, which determine the main physical and chemical properties of the hair. The filaments are made of fibrous eggs.

50% of the proteins are helical and the matrix consists of non-spirochete proteins rich in cystine. These proteins are synthesized at the lower end of the hair follicle, and cysteine, the final stage of synthesis, is converted to cystine.

Hair is almost purely protein-based, with very little lipid.

1. Hair is a dead cell, which is an organic matter that grows from the keratinization of the hair roots.

2. The nail is composed of two parts, living cells and dead cells, which grow out and are separated from the part of the capillary network of the finger (the part that is not bloody, whitish, and can be cut off), and the nail plate is dead cells, and the other parts are living cells.