Hair Shaft
A single hair is called a "hair follicle" when referring to the structure from which the hair grows. The visible part of the hair itself is known as the "hair shaft." Each hair is composed of a protein called keratin and is part of the integumentary system in mammals.
The hair shaft extends from the hair papilla to the body surface. It is made up of keratinized cells that form the visible part of the hair.
No, people do not have "hair bones." Hair is primarily made of a protein called keratin and does not contain any bones. The structure of hair includes the hair shaft, which is the visible part, and the hair follicle, which is embedded in the skin, but neither part has any bony structure.
Actually, the part of the electromagnetic spectrum that we can see is called visible light, not ultraviolet light. Ultraviolet light is outside the visible spectrum and is not visible to the human eye.
No, the visible part is called visible light. Ultraviolet is invisible to the human eye.
The two parts of a mature strand of human hair are the shaft, which is the visible part of the hair that grows out of the scalp, and the root, which is the part of the hair that lies beneath the scalp and anchors the hair in place.
The hair shaft.
The visible part of the nail is called the nail plate or nail body. It is the hard, protective outer covering of the nail.
The innermost layer of the hair is the Medulla.
The part of the tooth that is visible above the gum line is called the crown. This is the part of the tooth that is typically covered with enamel and is responsible for chewing food.
The visible traits are called phenotypic traits. These are the traits that affect an individual's' appearance like their eye and hair color.
The part of the hair below the skin's surface is called the follicle. The hair follicle is essentially the root of the hair where it begins to grow just beneath the surface of the skin.