describe dcharcterstics of d defenses of each of thse portals: Feco-oral, skin,sexual, respirtory, mucosa?
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Ok obviously this is for a class - so why don't you consult your text book.  The answer will be in there.  Think about it logically too - your skin, in an of itself is a natual barrier.  It is made of tightly packed cells that are keratinized to prevent too much water getting in.  Get the drift...??
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Yes, try to this!\n\nhttp://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=3906008
698284
Mouth, esophagus, stomach, small intestine, large intestine, colon, rectum, anus are the parts the food or the waste from food travel through.  Side line contributors are glands such as\nsaliva glands, liver, gall bladder, pancreas.
972612
biffidus digestivum..anything that contains it loike that danone yoghurt...erm cant remember what its called
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outer three coverings are renal fascia(outermost fibrous membrane), adipose capsule(middle fatty layer which absorbs shock), renal capsule(inner fibrous layer).\nlearn it as F.A.C and F is farthermost and C as closest(and pronunce as f**k)
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A few sites on immunology here
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pharynx is the general term:\n            nasopharynx to the nose\n            oropharynx to the mouth\n            laryngeopharyx to the larynx-voicebox\n\nbut the eustacean tubes are also in this area. They are another passageway off the pharynx
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Blood vessels nourish all parts of the digestive system from mouth to anus, but the circulation to the small intestines is probably one of the most importantfor distribution of nutrients. The small intestine is the site of both digestion and absorption of PFC nutirents from the food taken in at our mouth; protein is broken down into smaller subunits called amino acids, complex carbs are broken down into smaller monosaccharides, lipids are broken down into glycerol and fatty acids, and nucleic acids are broken down into nucleotides.  These smaller molecules are more easily absorbed from the lumen in the intestine to the villi. Thus the nutirents are more readily available for the many chemical reactions for misc cells metabolism.  The intestines are lined with epithelial tissues that have a unique arrangement of intestinal projections called "villi".  These villi increase the surface area for absortion of these molecules digested for us.  The villi have blood vessels (capillary) and lacteals in them so that the nutrients we ate, digested and absorbed can be transported to the blood or lymph vessel in the villi and then eventually go to to-thru blood stream so that any cells throughout the body that need nutrients can be "fed," esp so that cell respiration can take place. The blood vessels in the stmach make it easy for some molecules to even be absorbed in the stomach.  Same is true in the  mouth. Water, misc drugs, sugar and ions can be absorbed into the blood vessels located under the tongue.\n\nOne of the most COMPLEX sites connecting the circulatory system and the digestive system is the hepatic portal system (and all associated vessels) that help to transport and process MANY molecules-nutrients as they go thru the sinuses in the liver. The liver has hundreds of functions related to the complex metabolism and processing of proteins, fats and carbs.
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external barriers, then mucous membrane, then nonspecific, then specific.
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cervix -----> cervical\nfemur -----> femoral\ncor -----> cordial \ndigitus -----> digit, digital
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Hi there !\nWhat do you mean by the question ? \nYou expect somebody to describe the "entire digestion" and the "metabolism mechanism" of the Human body in this column ?\nBetter verify the "Book of Physiology by Guyton" or "Chatterjee"..they have given beautiful descriptions ! \nbest wishes !
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The mucosa, the skin that covers (among many others) your mouth, nose and throat, produces mucus to protect istself from bacteriae and viridae. If there is an infection in your body, the mucosa decides it has to protect itself more and broduces more mucus. that's all there is.
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hahaha! So you'd rather play with words such as \nsquamous cells,\northopharyngeal\nnasogastric\nrheology\npolyethyleneglycol\nglycogenolysis\nglyconeogenesis...\n\ngood for you!!
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Reservoirs are:\nsemen (testicle)\nurethra\nbladder\n\nFor more info:\nhttp://www.sfaf.org/treatment/beta/b34/b34anal.html
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http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=169017\n\nhttp://www.cbcb.umd.edu/~salzberg/appendixa.html\n\nhttp://bioweb.pasteur.fr/seqanal/interfaces/mfold-simple.html\n\nhttp://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1579236\n\nSome of the links above might help in solving your query. All the best.
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Well, I assume you are talking about the defences of the body. The first line of defence is protective structures that form barriers. The main structure is your skin. Also, there are protective reflexes, such as coughing and sneezing.
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Mouth:(consists of teeth; tongue; salivary gland) the basic organ needed to chew food and mix saliva into the food for primary breakdown of food:\nOesophagus: (food pipe) it helps as a pipe to transfer food from mouth to stomach,\nStomach: a big bag which is the basic organ for digestion of food and mass;\nDuodenum: an organ at the end of stomach which breaks proteins into peptides;\nSmall intestines: organ for absorption of food materials\nLarge Intestine: organ for further break down of food mass and absorption of materials\nRectum: an organ at the end of intestines which store end mass of food.\nAnus organ for excretion of the end mass of food.