Integumentary System (skin)

Keratin plays a crucial role in the epidermis, which is the outermost layer of the skin. The epidermis serves as a protective barrier, preventing the loss of moisture and protecting the body from external elements, such as microorganisms, chemicals, and physical trauma. Keratin is a fibrous protein that contributes to the structural integrity and protective functions of the epidermis in the following ways:

1. **Formation of the Epidermal Barrier:** Keratinocytes, the primary cells of the epidermis, produce and accumulate keratin as they move from the deeper layers of the epidermis to the surface. As keratinocytes mature and fill with keratin, they become flattened and tightly packed, forming a tough and resilient barrier.

2. **Waterproofing:** Keratin is hydrophobic, meaning it repels water. The accumulation of keratin in the outer layers of the epidermis helps to create a waterproof barrier, preventing excessive water loss from the body and minimizing the absorption of water from the external environment.

3. **Protection from External Threats:** The tough, keratin-rich outer layer of the epidermis acts as a shield against harmful microorganisms, UV radiation, chemicals, and mechanical injuries. It helps to reduce the risk of infections, irritations, and damage to the underlying layers of the skin.

4. **Resistance to Wear and Tear:** Keratin is highly resistant to mechanical stress and abrasion. It provides strength and durability to the skin, allowing it to withstand everyday wear and tear.

5. **Hair and Nail Structure:** Apart from the epidermis, keratin is also a major component of hair and nails. In hair, keratin provides strength and elasticity, while in nails, it contributes to their hardness and protective function.

In summary, keratin is essential for maintaining the integrity and protective properties of the epidermis. It helps create a strong, waterproof barrier that shields the body from external threats and maintains proper hydration and homeostasis. Additionally, keratin is a key structural component of hair and nails, contributing to their strength and resilience.

Nails are made of up the protein called keratin, which is a tough and insoluble structual protein.

It is basically dead skin cells.

Dermal Papillae.

it allows sweat to go out through it's pores, which cools down your body, and it also keeps some heat in to keep you somewhat warm.

Anything that does not include the epidermis, dermis, subcutaneous layer or even basement layer is not a part of the skin layer. Also the lining of epithelial cells on the uterine.. or even gastrointestinal tract is considered part of the integumentary system.. (not skin).

The skin is considered a sense organ because skin conducts sensory nerve impulses which can made us response either feeling pain,cool,hot and so on
Meissners corpuscles sense light touch, Pacinian corpuscles sense deep touch and pain

subcutaneous layer. its the third layer of skin made up of adipose tissue (fat) which is made up of adipocytes. it lies benath the dermis which lies beneath the epidermis, your outermost layer of skin.

This is a second degree burn and will probably result in blistering. Once blisters have fomed do not pop them - breaking the epidermis will lead to infection. All burns should be cooled with running water, (please, if a garden hose is used, make sure all the heated water is drained first). Swimming pool water may be used as the water is neutral but do not throw the victim in the pool as this will increase chances of shock. Information from memory and paramedical training.

As best I can tell it seems to be a typo or OCR error for "stratum corneum," which is the outermost layer of skin cells.

The components of skin. Epidermis is the top layer. (Epi=above, -dermis=skin). The dermis is the true skin and middle layer. The hypodermis is below the dermis. (hypo=below)

Fat. also known as adipose tissue, is the connective tissue found in the subcutaneous layer that provides insulation.

The nervous system detects information inside and outside your body.

There are dozens of different cell type that make up skin.

The most plentiful are keratinocytes (outside) and fibroblasts (inside). However there are many others each with specialised functions, like sensation, pain, sweat, transport (blood vessels), hair follicles, immune defense, contraction.

It depends on which structures you are calling skin. The skin is made of dermis and epidermis. The outer thin layer is the epidermis, but it itself, is made of 4-5 layers depending on where it is located on the body. The most outer and the thinnest of the epidermal layers is called the coreum. It is the layer that we shed as it dies off and falls off.

The entire pelvis protects the organs in the lower abdomen. The spinal column protects the body by giving it structure or framework. When a person is in an accident that breaks the pelvis or hip bones, there is typically also damage or extensive injury to the lower abdominal organs.

The lower, reticular layer, is thicker and made of thick collagen fibers that are arranged in parallel to the surface of the skin. The reticular layer is denser than the papillary dermis, and it strengthens the skin, providing structure and elasticity. It also supports other components of the skin, such as hair follicles, sweat glands, and sebaceous glands.

hair follicles
follicles

Stratum Basale

stratum corneum with 20-30 layers

You should drink lots of water that helps with your skin. When you take a shower or bath you should always wash your hair and BODY. You should exercise but NOT TO MUCH. You should also go to BED also. You should always eat right but you can eat snacks too if you would like. When its cold you should either a heavy or small jacket depending on how cold it is and the degrees. That isbasically most of how you take care of your body in my case. THIS IS POSITIVELY TRUE..... (:

The variations of skin color are a result of the amount of melanin that is produced and how it is distributed. this is obvious when you are exposed to the ultraviolet rays of the sun. In order to protect your skin, melanocytes produce more melanin and, voila!, you've got a tan.

collagen fibers and resilient elastic fibers

The skin produces sweat, but this is not really an excretion. The main function of sweat is to help cool the body. However sweat also contains small amounts of urea, the main waste found in the urine. The concentration of urea in sweat is much less than that in the urine, so this is not a significant route for excretion. Sweat also contains samll amounts of salts (minerals), but again the urine is the main route for the elimination of excess salt. See: http://en.wikipedia.org/wiki/Skin http://en.wikipedia.org/wiki/Excretion S