a&p
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Function of the body membrane | Cover surfaces, lines body cavities and form protective sheets around body organs
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| 2 types of body membrane | epithelial and connective tissue
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| 5 Characteristics of epithelial tissue | fit closly together to form continuous sheets-always have one free surface or edge-lower surface rests on a basement membrane secreted by the cell-they have no blood supply-if well nourished will regenerate themselves easily
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| Classifications of epithelial cells | simple, stratified, squamous, cuboidal,columnar
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| Simple epithelia | are most concerned with absorption, secretion, and filtration. because it is usually very thin, protection is not one of its specialties.
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| Simple squamous epithelium | a single layer of cells resting on a basement membrane common in glands and thier ducts, usually forms membrane where filtration of exchange of substances by rapid diffusion occurs, ex air sacs of the lungs ventral body cavity
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| Simple cuboidal epithelium | one layer of cubbe shhaped cells resting on a basement membrane, common in glands and thier ducts, salivary glands,pancreas, walls of kidney tubules, surface of ovaries
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| simple columnar epithelium | tall cells single layer that fit closely together, goblet cells which produce a lubricating mucus are often seen in this type of epithelium, line the entire digestive tract from the stomach to the anus.
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| mucus membrane | membranes that line body cavities open to the body exterior are called______ such as those of hollow organs of the respiratory, digestive,urinary and reproduction tracts
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| Sratified epithelia | consists of 2 or more cell layers, being more durable than the simple epithelia, the epithelia function primarily to protect
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| Stratified squamous epithelium | the most common stratified epithelium in the body, consists of several layers of cells, found in sites that recieve a good deal of abuse such as the esophagus,mouth and outer portion of the skin
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| Stratified cuboidal epithelium | typically just 2 cell layers with at least the surface cells cube shape
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| Transitional epithelium | a highly modified, stratified squamous epithelium that forms the linning of only a few organs the urinary blader, ureters and urethra, properties elastic like
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| Glandular epithelium (Gland) | consists of on or more cells that make and secrete a particular product
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| Endocrine glands | lose there connection to the surface(duct) thus they are often called ductless glands, they secrete hormones directly into the blood vessels (thyroid,adrenals,and pituitary
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| Exocrine glands | retain thier ducts,thier secretion empty thru the the duct to the epithelial surface,examples sweat and oil glands,liver, and pancreas
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| Cutaneous membrane | skin,its superficial epidermis is composed of keratinizing stratified squamous epithelium, underlying dermis dense fibrous connective tissue,
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| Serous membrane | composed of layer of simple squamous epithelium resting on a thin layer of areolar connective tissue in contrast mucus membrane which line open body cavities ____ ______line body cavitiesthat are closed to the exterior
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| parietal layer | lines a specific portion of the wall of the ventral body cavity
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| visceral layer | parietal layer folds into itself to form the_____ ______ closest to the organ
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| Peritoneum | the serosa lining that covers the abdominal cavity
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| Pleura | Isolates the heart and lungs
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| pericardium | surrounds the heart
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