- Human Skin Histology.

-Human skin is considered the largest organ of the body and form  about 16% of the body weight (1) with a surface area somewhat less than 1.5 m² (2).
-The skin form the external surface of the human body.At the orifices of the mouth,nose and the anal canal, the skin join the mucous membrane at the muco-cutaneous junction (3).

-Types of human skin (1):-

1. Thick skin (Non-Hairy) which has thick epidermis and found only in the palms and soles as they are the most sites subjected to abrasions and trauma and thick skin shows characteristic parallel ridges and grooves which are called "Finger prints".
2. Thin skin (Hairy) which has thin epidermis and covers the rest of the body.
   

-Histological structure of the skin :-

skin is composed of 3 layers

1. Epidermis
2. Dermis
3. Hypodermis (Subcutaneous fatty layer) 

1- Epidermis:-

• It is the outer superficial epithelial layer of skin.
• It is composed of Stratified squamous keratinized epithelium.
• The thickness of the epidermis varies in different types of skin. It is the thinnest on the eyelids and the thickest on the palms(0.8mm) and soles(1.4mm).
• The epidermis is ectodermal in origin.
  
• The epidermis is devoid of blood vessels and gets its nutrition through diffusion.
  
  
  

- What are the symptoms of pleural mesothelioma?

What are the symptoms of pleural mesothelioma?

Mary Hesdorffer, MS, APRN, nurse practitioner with the Mesothelioma Applied Research Foundation discusses symptoms of pleural mesothelioma.

- What does a pleural mesothelioma diagnosis mean?

What does a pleural mesothelioma diagnosis mean?

Mary Hesdorffer, MS, APRN, nurse practitioner at the Mesothelioma Applied Research Foundation talks about the importance of consulting with a pleural mesothelioma expert when discussing a diagnosis.

- Pickwickian syndrome.

Pickwickian syndrome

-Def :- It is a condition in which severely overweight people fail to breathe rapidly enough or deeply enough, resulting in low blood oxygen levels and high blood carbon dioxide (CO2) levels.

-Synonyms:- Obesity hypoventilation syndrome(OHS).
-In 1836, Charles Dickens drew in his novel "The posthumous paper of the Pickwick Club" what would be, certainly, the best characterization of an obese subject with respiratory disorders(1).
 

- Breast feeding.

Breast feeding

(International Breastfeeding Symbol)

- Breastfeeding is the feeding of an infant or young child with breast milk directly from human breasts.

Advantages of Breast Feeding
( the breast is the best)

(1)For Infants:-

"Human breast milk is the healthiest form
of milk for human babies" (1) How?

*It is biochemically the most suitable for infant feeding at any stage (colostrum,transitional and mature milk).
*It contain various elements required for nutrition of infant.
*It is hypoallergic (2) and may reduce subsequent atopic diseases .
*Naturally stored at room temperature.
*Available whenever needed and automatically adjusted to infant needs.
*Anti infective properties how?
- It is naturally sterile as no preparation nor contamination.
- It contain various antimicrobial factors :-