√ Definition of Hair and Hair Structure (Full Discussion)
Definition of Hair and Hair Structure (Full Discussion) – There are so many parts of the human body and all of them are important for the human body because one another is interrelated and helps each other.
Parts of the human body are diverse and have various functions, some are inside the body or some are outside the body. The part of the human body that we often see everyday is the hair.
Definition of Hair and Hair Structure (Full Discussion)
Hair has its own role for the body and its role is also very important. Here is the meaning of hair.
Definition of Hair
Hair is an organ of the human body that has a shape like strands of thread that grows on the skin and contains lots of keratin. Hair can emerge from the epidermis or the outer layer of skin.
Even though it has a thin shape, hair has many functions for the animal or human body.
Hair Structure
Hair has many structures consisting of:
Hair follicles
Hair root (follicle) is part of the hair that is in the skin of humans or animals. The hair root itself consists of several parts including:
-
Bulp
This is the base of the enlarged hair, shaped like a ball with the function of protecting the hair papilla. -
Papillae of Hair
This is the part that is protected by the bulb which is located at the very bottom of the hair follicle. The hair papillae originate from a collection of skin cells or the corium and also the aria skin or epidermis. -
Melanocytes
These are cells that produce pigments or coloring agents for the hair which are then distributed mainly into the hair shaft and then into the hair medulla. Melanocytes are located between the papilla cells. -
Hair Follicles
This is the hair follicle which is the place where hair grows. This bag consists of an outer layer and an inner layer. The inner layer is derived from epidermal cells and the outer layer is derived from dermis cells. -
Hair Upholding Muscles
This is a muscle that can make fine hair or what is often called goosebumps stand up when receiving stimuli from outside or from within such as feeling warm, cold, or hot. -
Matrix
This is the hair bulb or the most fertile part of the hair which functions as growth for the hair.
Hair Stem Layer
The hair shaft itself has 3 parts:
cuticle
This is the layer of the hair shaft that has a shape like fish scales and has a function as a protective layer of hair. This is also known as the hymen. This layer is on the outside and is a protective head and hair.
Cortex
This is the very large part of the hair and is a layer under the curticula that functions as a the layer that determines the color because this layer can contain a lot of pigment or dye hair. This is also called the epidermis.
Medulla
This is the part that is in the very center of the hair shaft. This is also known as the hair shaft.
Hair Shape
The shape of the hair can be grouped as follows:
Straight, not wavy and not curly
This form can provide convenience to the owner in terms of hair styling in hair cutting and when in a bun.
choppy
This shape is like a bubble shape in the hair. This can be caused by a forlicle that is curved and has an oval or oval cross section. This hair is also easy to style.
Curly
This shape is like lots of small or medium waves in the hair. This can be caused by the very curved shape of the follicle but the cross section is flat. This hair is a little complicated in the styling.
Here's an explanation about Definition of Hair and Hair Structure (Full Discussion), hopefully can add to your insight and knowledge. Thank you for visiting and don't forget to read other articles.
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