Skin, Biology

SKIN -

  1. Largest organ of body. It is covered by hairs or pelage i.e. pillifera.
  2. Study of skin is dermatology. Outermost covering of body.
  3. Skin is elastic and water proof. It is thick, dry & impermeable.
  4. Under skin, layer of adipose tissue are present directly attached to muscles by areolar tissue or tella subcutanea as lymph sinuses are absent.
  5. As age is increased, lymph sinuses are formed. So skin becomes loose.
  6. Histamine are present in skin. Maximum energy is lost from skin.
  7. Thinnest skin in eye lid. Thickest skin in sole.
  8. Skin is first of all affected by nuclear radiation.
  9. In summer, skin becomes red due to vasodilation.
  10. In winter shivering takes place i.e. by muscle contraction extra energy is released peniculus carnosus muscle is responsible for it.
  11. Preservation of skin is texidermy.
  12. Preservation of skin at low temperature is cryopreservation.
  13. Due to sweat gland, skin is pupulary known as uncoiled kidney.
  14. In skin 2 parts are clear -    

                      1. Epidermis                

                       2. Dermis

Posted Date: 10/1/2012 4:28:56 AM | Location : United States







Related Discussions:- Skin, Assignment Help, Ask Question on Skin, Get Answer, Expert's Help, Skin Discussions

Write discussion on Skin
Your posts are moderated
Related Questions
Radiographic Evaluation - criteria for endosteal implants Surgical and interventional imaging involves imaging the patient  during and immediately after surgery and during the

Many common methods are employed for the removal of impurities from water. Some of them are: Sedimentation Filtration Reverse osmosis Electro dialysis Aeration

Explain the Swab Method? Swab method is the oldest and widely used method in food and dairy industry and was developed by W.A. Manheimer and T. Ybanez in 1917. A sterile cotton

Why have biologists and bioinformaticians embraced the Web as a vehicle for disseminating data so quickly, whereas clinicians and clinical informaticians have been more hesitant to

Define the Criteria for Assessment of Thiamin Status? Thiamin status has been assessed by measuring urinary thiamin excretion under basal conditions or after thiamin loading, t

what is the difference between nitrogen fixation, nitrification ,assimilation and denitrification processes

What are the physical propertie of sol Sols resemble liquids in their main physical properties - that is, they flow and they do not show rigidity of form. However, when a sol a

Q. What is plutonium reprocessing? Why is it a big environmental issue? The Plutonium is the highly radioactive chemical element produced from uranium by nuclear plants. The Pl

classification of organisms in phylum protozoa according to their class,order,family,genus,species.

What is Pulmonary Artery Banding ? Banding of pulmonary trunk is done to reduce pulmonary flow in a baby. It is seldom done for isolated ventricular septa] defect. Multiple mu