The dermis consists of blood vessels, connective tissue, nerves, lymph vessels, glands, receptors, hair shafts. The dermis has two layers, the upper papillary and lower reticular layers. The Papillary is the upper layer of the dermis, it has ridges and valleys causing finger prints. It contains receptors which communicate with the Central Nervous System, these include touch, pressure, hot, cold and pain receptors. These are not evenly distributed over the body, for example there are more on the lips and finger tips making them more sensitive. The reticular layer is made of dense elastic fibers (connective tissue), this houses hair follicles, nerves, and certain glands.
The protein keratin stiffens epidermal tissue to form finger nails. Nails grow from a thin area called the ‘NAIL MATRIX’ , growth of nails is about 1 mm per week on average. The lUNULA is the crescent shaped area at the base of the nail, this is a lighter colour as it mixes with the matrix cells.
The Dermis (thick inner layer of skin)
Internet Resources for Melanoma Basal Cell Carcinoma (BCC) This is where the basal cells become cancerous; basal cells are found in the epidermis (the outermost layer of skin). This is the most common type of skin cancer which is usually highly curable when detected early.
Integumentary System Overview
The skin has two main layers, the epidermis and the dermis :
Q. Does fish-oil helps exercise induced asthma? I was diagnosed with exercise induced asthma a couple of year ago, and since then had better and worse times with my asthma, although the treatment I get. I read in a newspaper that fish oil can help exercise induced asthma- is that true? Do I have to eat fish-oil specifically or can I eat fish instead (I really, really, hate fish-oil…)?
Q. if someone is allergic to olive trees, does that mean they are allergic to olive oil as well?
Q. I am wondering if any of you are ENTHUSED about the use of COCONUT OIL. I ask because it IS SATURATED FAT. I have trouble losing weight. That inculdes getting cold frequently, and was wondering if cocounut oil would help me maintain body temperture more easily. Also, I have notice that SOME claim that coconut oil has many health benefits not affiliated with polyunsaturates.
Acne: Localized skin inflammation as a result of overactivity of the oil glands at the base of specialized hair follicles. Acne happens when oil (sebaceous) glands come to life around puberty, when these glands are stimulated by male hormones that are produced in the adrenal glands of both boys and girls.
The oil glands, which are located just beneath the skin, continuously produce and secrete oil through openings in the skin. The oil lubricates and protects the skin. Under certain circumstances, cells that are close to the openings of the oil glands block the openings. This causes a buildup of oil underneath the skin.
Bacteria, which live in everyone’s skin but generally mind their own business, feast on this oil, multiply, and cause the surrounding tissues to become inflamed if the follicle ruptures.
If the inflammation is right near the surface, you get a pustule; if it’s deeper, a papule (pimple); deeper still and it’s a cyst. If the pore of the affected hair follicle is closed to the surface, the result is a ” whitehead.” If the pore is wide open, oil becomes oxidized (that is, acted on by oxygen in the air), the oil changes from white to black, and the result is a “blackhead.”