How Does The Composition Of Hair Affect The Human Body?

• Short dark hairs in the bald patches that are wider at the top (exclamation point hairs).

The skin is divided into three different parts including the epidermis, dermis, and hypodermis. The epidermis is the outermost layer of the skin. This region of the skin has no blood cells or blood vessels running through it. All of the nutrients that the epidermis needs are received through diffusion from the dermis. The epidermis is made up of stratified squamous epithelial cells. The epidermis is made of five separate layers: the stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and the stratum corneum. Starting at the innermost layer, the stratum basale is where mitosis of keratinocytes takes place. This layer of the epidermis also contains melanocytes which give the skin it’s pigment. As mitosis takes place in the stratum

Hair: composed of columns of dead, keratinized cells bound together by extracellular proteins. Hair has two main sections: The shaft- superficial portion that extends out of the skin and the root- portion that penetrates into the dermis. Surrounding the root of the hair is the hair follicle. At the base of the hair follicle is an onion-shaped structure called the bulb Papilla of the hair and the matrix within the bulb

In addition, more attention is paid to the front hairline (often thought to be the most important part of a hair system).

There are three primary layers of the skin: the outer layer, the epidermis and the layer beneath, the dermis and the hypodermis. The epidermis is thin, tough and waterproof while protecting the body from outside bacteria invading the body. It also contains keratinocytes which are from the basal layer which is the deepest layer of the skin. The keratinocytes reach up to the epidermis, shed and new ones form again. The dermis is the second layer of the skin and is the thickest. It is made from fibrous and elastic tissues which are made from fibrillin, elastin and collagen to create the strength and flexibility. It also contains sweat and oil glands, nerve endings, blood vessels and hair follicles. Sweat glands help the body cool off during heat

Follicular Unit: Natural groupings of hair that grow together as a group in the scalp and share the same blood supply.

up of dead cells that turned into keratin. The hair shaft formed of three layers which are the

Diffusion from blood to the hair follicle is thought to be the primary mechanism for cortisol incorporation into hair (Davenport et al 2006) It is believed that the cortisol that enters the hair shaft is in direct portion to its free concentration of blood. This process only occurs during active hair growth in individual hair follicles. The cortisol concentration (HCC) in an intact hair shaft should represent an integrated measure of systemic HPA activity during the active growth phase of the hair sample being tested. MACBETH An increasing body of evidence has shown that hair cortisol levels reflect systemic plasma levels of the hormone over time, allowing estimation of chronic stress, both psychological and physiological,

Long ago in Ancient Greece there was a little town called Oldiron. This little town was ruled by King Alexandros the great. He was known for his heroic feats of courage and bravery. He had fought ferocious centaurs, women disguised as snakes, blood-thirsty vampires, fire-breathing dragons and many creatures considered impossible to defeat. There was one mythical creature that was really quite a headache to get rid of. This monster was Morpheus.

The hairs were examined for a variety of microscopic features such as: medulla, pigmentation, cortical fusi, ovoid bodies, cuticle, and root and tip characteristics. The hair cuticle patterns of

Human hair is a structure made up of several layers. These layers have many functions including protecting the hair, keeping its flexibility and maintaining the structure of hair (Chem 107). Inside of hair, past the outermost protective layer a layer of cells will be found that hold keratin and melanin. According to HowStuffWorks (2009), “the shade of your hair is determined by natural pigments called melanin that are produced by skin cells.” Melanin is a natural pigment created by skin cells, when the cells die the pigment remains in the cell that was converted into hair cells.

The cortex contains melanin, which colors the fiber based on the number, distribution and types of melanin granules. The shape of the follicle determines the shape of the cortex, and the shape of the fiber is related to how straight or curly the hair is. People with straight hair have round hair fibers. Oval and irregularly shaped fibers are generally more wavy or even curly. The cuticle is the outer covering. Its complex structure slides as the hair swells and is covered with a single molecular layer of lipid that makes the hair repel water.[4] The diameter of human hair varies from .017 to .18 millimeters (0.00067 to 0.00709 in).[6] There are two million small, tubular glands and sweat glands that produce watery fluids that cool the body by evaporation. The glands at the opening of the hair produce a fatty secretion that lubricates the

The next layer in the epidermis is the stratum Spinosum. In this layer the cells are connected to each other by desmosomes that appear as spines. The nuclei are also smaller that the nuclei in the Granulosum layer. This layer is about 20-100 µm below the skin surface. The last layer of the epidermis is the basal layer. In this layer the cells line up with each other and there are also melanocytes. Melanocytes are cells that produce melanin, which is the pigment that appears in skin. The cells in this layer often divide to replace the cells in the layers above it. Melanocytes appear as bright, round cells and basal cells are small and bright in RCM images. The next layer that appears in the skin is the dermal-epidermal junction. This is where the epidermis and the dermis meet. There are two parts to the dermis: the papillary dermis and the reticular dermis. The papillary dermis has finger like projections that touch the epidermis. This layer is around 100-150 µm below the skin surface. In RCM images, one can see blood flow. There are also collagen fibers in dermis and they appear very

At 2 weeks, Melanie’s cells first started the miraculous transformation process of changing into the specialized cells that form all the parts of her body. At magnificent speed, cells begin to migrate forming three layers. Each of the layers are assigned to build something, the top layer are the cells that make skin, hair, teeth, and brain. When the cells in Melanie’s surface

1) Diet: Healthy hair beings with your body. Dark green vegetables such as spinach and broccoli are an excellent source of vitamin A and vitamin C which is needed to produce sebum, the body’s natural hair conditioner. Coconut is also considered as an excellent food for hair. Dairy products such as fresh yoghurts and milk not only strengthen your hair but also add shine to it. Avoid processed and canned foods as they are not really helpful in providing nutrition to