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Describe the types of epithelial and connective tissues

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Describe the types of epithelial and connective tissues found in the epidermis and dermis of the skin.
Describe the process by which the skin cools the body when warm and warms the body when cold.
Nurse72 : I'm happy to do this for you. When is it due and what is the word count?
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just a couple of paragraphs each question today if you can. Thanks for your help.


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ok thank you


Customer: replied 5 years ago.
Do you have this ready know?
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Describe the types of epithelial and connective tissues found in the epidermis and dermis of the skin. The layers of the skin include: an outer layer of stratified squamous keratinized epithelium, the epidermis and an inner layer of dense irregular connective tissue, the dermis. The dermis is composed of two layers: the papillary dermis closest to the epithelium, is composed of less dense connective tissue and is vascularized with capillary networks penetrating the papillae and the underlying reticular dermis composed of avascular, dense irregular connective tissue.
Describe the process by which the skin cools the body when warm and warms the body when cold. The nervous system is the real regulator of the body temperature, but the work is done by means of the three organs: the muscles, the blood vessels, and the sweat glands.
The process of heat-making which is carried on in the muscles is regulated by certain nerve centers in the brain and spinal cord, which are connected with the muscles by nerves, so that the making of heat is under constant and perfect control. When the body is exposed to cold air or water or is in any way cooled so that the temperature of the blood is lowered, nerve centers in the brain incite increased activity in the heat-making organs and more fuel is burned in the cells. In this way the heat-making process is adjusted to the needs of the body.
When the cooling of the body is continued to such a point as to produce a considerable fall in the temperature of the blood, one usually feels chilly and begins to shiver. "Shivering" consists in a rapid contraction of the muscles in which nearly all the muscles of the body take part. As muscular action is always accompanied by the making of heat, this is an automatic method of warming the body. Shivering is simply a natural method by which the body is exercised in order to increase the amount of heat production.
References:
http://www.healthguidance.org/entry/8891/1/How-The-Temperature-Of-The-Body-Is-Regulated.html
http://lifesci.rutgers.edu/~babiarz/integ.htm
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