JOBS OPPORTUNITIES IN SAUDI ARABIA

Required Urgently For a Leading  Construction Company in SAUDI ARABIA CONCRETE LAB TECHNICIAN : ITI/Diploma with min. 3 years experience. HVAC ENGINEER : (Hindu/Christian/ Muslim) Gulf exp Candidate preferable. INDIAN COOK: Minimum 5 yrs exp required, (Muslim) CONCREET BATCH PLANT SUPERVISOR CIVIL ENGINEER :Degree with 5 yrs exp in construction DUCT FABRICATOR : 5TO 7 Yrs Exp &able read drawings and should handle the job independedly. DIESEL MECHANIC Min 5 yrs. exp. in heavy vehicles. VISA READY IMMEDIATE DEPARTURE: Right candidates should contact with complete Testimonials to;  Tel ; 67023439/65767897 Email; rajaniexports1947@yahoo.com

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ANATOMY&PHYSIOLOGY FOR NURSES

GLANDS.A gland is a secretory organ which may exist as a separate organ such as the liver, pancreas, and spleen; or may be simply a layer of cells as the simple tubular glands of the alimentary canal, body cavities, etc. All glands have a rich blood supply. Their special function is to select from the blood stream certain substances, which they then elaborate into their important juices or secretions. There is a tremendous variety of glands, each with its different function, making a collective description and classification difficult. A simple classification might be attempted as follows; Glands which pour their sewcretion directly on to the surface include the sweat glands, sebaceous glands, and the gastric and intestinal glands. Glands which pour their secretion indirectly, by means of ducts, on to the durface include the saslivary glands, pancreas, and liver. Ductless glands.  These form the group described as endocrine organs. These are the glands of internal secretion.  A great deal of the well- being of the body depends on these glands, which through their secretions excert an important chemical control on the functions of the body.

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ANATOMY&PHYSIOLOGY FOR NURSES

FUNCTIONS OF EPITHELIAL TISSUE Protective. The epithelial tissue which forms the covering of the body, the skin and the lining of the cavities which open on to the surface is mainly protective. It prevents injury to the underlying tissues, prevents the loss of fluid from these tissues and also prevents the passage of fluid into the structures which are covered by skin.  Micro- organisms cannot pass through healthy skin but they can and do pass through abraded skin. Secretory.  Most of the secreting glands and their ducts are composed of columnar epithelium. Very often the epithelium lining the gland and its duct is continuous with that of the surface in which the glands lie. Simple tubular and simple saccular glands are just involutions from the surface such as thesimple tubular glands of the intestine as shown in When these involutions branch, the structure becomes more complicated , as in the formation of compound tubular glands such as those of the kidney, and compound racemose or saccular glands  such as the salivary glands and the pancreas.         The endocrine glands are also composed of epithelial cells which may be massed together or may line hollow vesicles as occurs in the thyroid gland where the vesicles are lined by columnar epithelial cells, cubical in shape. These cells produce their secretion-colloid- but there is no duct from these glands and therefore the secretion reaches the blood stream either directly or through the lymphatics.

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