What Epithelial tissue is found in the Trachea?
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Epithelial tissue consists of cells that form membranes, which cover &\nline body surfaces. In addition, epithelial tissue forms glands, which\neither secrete chemicals outside the membrane (exocrine glands) or\nsecrete chemicals (hormones) into the blood (endocrine glands)\n\nThe type found in the trachea of mammals is pseudostratified surface epithelium and is composed of differentiated cell phenotypes including basal, secretory and ciliated cells.
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think about it, its the trachea and bronchial surfaces that contain the dust trapping mucus and the cilia which then transfer the dust to the throat to be swallowed.\n\nif these surfaces are damaged in any way (smoking being a big issue here) then any microbes inhaled will have more chance of getting past the defences and into oxygen rich, warm and moist environments deeper into the lungs
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The skin. Although it is tissue, organs are just groups of tissues.
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Pros-less chance of infection due to less surface area\nCons-if trachea is blocked or destroyed, there is no secondary source of getting oxygen...also, if we had more "tubes" or, like fish that breath through their entire body, we could get more oxygen to our bodies\nps-did you know that you also breath through your skin, but it is a minimal fraction compared to the oxygen you bring in through your trachea?  however, if you were to wrap plastic tightly around your back and close off all air supply, you could suffocate
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pulmonology text would have it.  find it at your local medical school.
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Trachea divides into bronchi, Bronchi divides into bronchioles and then inte alveoli. Alveoloi are called the air-sacs and they are involved in the air respiration process.\nSo the smallest branch of bronchi are the alveoli(plural)and alveolus(singular).
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lungs, mouth nose, heart
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There is a fleshy flap-like structure called epiglottis that is situated in the throat, behind the tongue, at the entrance to the larynx, that is, at the point where the larynx and trachea (conduct leading to the lungs) and the esophagus (conduct leading to the stomach) meet. The epiglottis works as a valve that covers the entrance to the lungs while food is passing down the pharynx and into the digestive system; it's a safety mechanism to ensure that food particles don't damage the delicate respiratory organs. \nSo while we swallow (deglutition is the technical name for swallowing), we cannot breathe (=we're in apnea), because the entrance to the trachea is closed. \n\nThis is a diagram showing the position of the epiglottis:\nhttp://www.emedicinehealth.com/images/4453/4453-4468-10013-23657.jpg\nand here's an animation showing the right path for food (green) and the wrong path that can make one choke (red):\nhttp://people.eku.edu/ritchisong/epiglottis.gif
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a group of cells form a tissue
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Feel around the top of your neck, around the line where you feel your pulse. If your glands are swollen you should feel two lumps on either side of where your trachea lies, protruding from your next.\n\nAnother place to feel them is in the armpit! \n\nIf your not sure exactly where too look, search lymph glands/nodes through Yahoo or Google and see what diagrams come back!
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The epiglottis is a thin, lid-like flap of cartilage tissue covered with a mucous membrane, attached to the root of the tongue, that guards the entrance of the glottis, the opening between the vocal cords. It is normally pointed upward, but when swallowing, solids or liquids stimulate sensors which folds down the epiglottis, and prevents food that should go into the esophagus and stomach from passing into the trachea (windpipe). The epiglottis is one of three large cartilaginous structures that make up the larynx (voice box).\n\nbasically it stops food from going down your throat the wrong way and choking you by getting into your lungs it sends food to the stomach
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"Any of a division (Tracheophyta) comprising green plants (as ferns and seed plants) with a vascular system that contains tracheids or tracheary elements."  \n\nTracheid: "a long tubular cell that is peculiar to xylem, functions in conduction and support, and has tapering closed ends and thickened lignified walls."\n\nKnow any more than you did before?
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The vocal cords are two bands or folds of mucuous covered, elastic muscle tissue. They are located side by side in the voice box (LARNNX) When we are silent, the cords remain open. This is the airway throught which we breathe. \nSound is created when air fro the lungs is pushed throught the closed vocal cords causing them to vibrate - faster for higer sounds and slower for lower pitched sounds.\n\nThe sound quality of the voice is the result of the vocal cords opening and closing smoothly. If air manages to pass throught your vocal cords when it's not supposed to, the voice will sound raspy, hoarse, lower or higher than usual. \nThere are several reasons why a person can lose their voice. The vocal cords are subject to infections (laryngitis), Irritations (repetive strain or use of unhealthy substances like tabacco and alcohol), trauma (a blow to the larynx) and tumours (nodules, polps and ulcers).
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In the Human body:\n\nKeratinizing epithelial cells:\n\nEpidermal keratinocyte (differentiating epidermal cell)\n Epidermal basal cell (stem cell) \nKeratinocyte of fingernails and toenails \nNail bed basal cell (stem cell) \nMedullary hair shaft cell \nCortical hair shaft cell \nCuticular hair shaft cell \nCuticular hair root sheath cell \nHair root sheath cell of Huxley's layer \nHair root sheath cell of Henle's layer \nExternal hair root sheath cell \nHair matrix cell (stem cell) \nProkaryotic cell (bacteria) Eukaryotic cell (plant and animal cell)\n\n[edit] Wet stratified barrier epithelial cells:\n\nSurface epithelial cell of stratified squamous epithelium of cornea, tongue, oral cavity, esophagus, anal canal, distal urethra and vagina \nbasal cell (stem cell) of epithelia of cornea, tongue, oral cavity, esophagus, anal canal, distal urethra and vagina \nUrinary epithelium cell (lining urinary bladder and urinary ducts) \n\nExocrine secretory epithelial cells:\n\nSalivary gland mucous cell (polysaccharide-rich secretion) \nSalivary gland serous cell (glycoprotein enzyme-rich secretion) \nVon Ebner's gland cell in tongue (washes taste buds) \nMammary gland cell (milk secretion) \nLacrimal gland cell (tear secretion) \nCeruminous gland cell in ear (wax secretion) \nEccrine sweat gland dark cell (glycoprotein secretion) \nEccrine sweat gland clear cell (small molecule secretion) \nApocrine sweat gland cell (odoriferous secretion, sex-hormone sensitive) \nGland of Moll cell in eyelid (specialized sweat gland) \nSebaceous gland cell (lipid-rich sebum secretion) \nBowman's gland cell in nose (washes olfactory epithelium) \nBrunner's gland cell in duodenum (enzymes and alkaline mucus) \nSeminal vesicle cell (secretes seminal fluid components, including fructose for swimming sperm) \nProstate gland cell (secretes seminal fluid components) \nBulbourethral gland cell (mucus secretion) \nBartholin's gland cell (vaginal lubricant secretion) \nGland of Littre cell (mucus secretion) \nUterus endometrium cell (carbohydrate secretion) \nIsolated goblet cell of respiratory and digestive tracts (mucus secretion) \nStomach lining mucous cell (mucus secretion) \nGastric gland zymogenic cell (pepsinogen secretion) \nGastric gland oxyntic cell (hydrochloric acid secretion) \nPancreatic acinar cell (bicarbonate and digestive enzyme secretion) \nPaneth cell of small intestine (lysozyme secretion) \nType II pneumocyte of lung (surfactant secretion) \nClara cell of lung \n\nHormone secreting cells:\n\nAnterior pituitary cells \nSomatotropes \nLactotropes \nThyrotropes \nGonadotropes \nCorticotropes \nIntermediate pituitary cell, secreting melanocyte-stimulating hormone \nMagnocellular neurosecretory cells \nsecreting oxytocin \nsecreting vasopressin \nGut and respiratory tract cells secreting serotonin \nsecreting endorphin \nsecreting somatostatin \nsecreting gastrin \nsecreting secretin \nsecreting cholecystokinin \nsecreting insulin \nsecreting glucagon \nsecreting bombesin \nThyroid gland cells \nthyroid epithelial cell \nparafollicular cell \nParathyroid gland cells \nParathyroid chief cell \noxyphil cell \nAdrenal gland cells \nchromaffin cells \nsecreting steroid hormones (mineralcorticoids and gluco corticoids) \nLeydig cell of testes secreting testosterone \nTheca interna cell of ovarian follicle secreting estrogen \nCorpus luteum cell of ruptured ovarian follicle secreting progesterone \nKidney juxtaglomerular apparatus cell (renin secretion) \nMacula densa cell of kidney \nPeripolar cell of kidney \nMesangial cell of kidney \n\n(Gut, Exocrine Glands and Urogenital Tract):\n\nIntestinal brush border cell (with microvilli) \nExocrine gland striated duct cell \nGall bladder epithelial cell \nKidney proximal tubule brush border cell \nKidney distal tubule cell \nDuctulus efferens nonciliated cell \nEpididymal principal cell \nEpididymal basal cell \n\nMetabolism and storage cells:\n\nHepatocyte (liver cell) \nWhite f
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See\nhttp://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/Pulmonary.html
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cheek cells are stratified squamous epithelia they protect against abrasion
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It is The Trachea or the wind pipe that allows the air movement to and from lungs.If the cartilage rings are not there the wind pipe will collapse and one would suffocate.We can feel it if we press our throat a little.The Adam's apple is located there.