Cells of the body are organized into four fundamental tissues; epithelial‚ connective‚ muscle and nerve. Epithelial tissues line all surfaces of the body: the skin‚ cavities‚ ducts‚ vessels. They are named according to the cell shape on the free surface. Cells of a tissue are held together by the basement membrane and intercellular fibbers. These tissues receive their nutrition by diffusion‚ for they are without blood vessels. Simple squamous epithelium lines all blood and lymphatic vessel‚ including
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The biggest mistake in America between 1865 and 1929 in my opinion was the Comprise of 1877. This Comprise set the civil rights for African Americans back for years to come. If only they had worked a better deal for the future of the African Americans in the Southern states. America could be whole different country today. When you go back to see what the civil war was truly about‚ it was too free the African American slaves and to give them the freedoms and rights they deserved. These people
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BioLab3 Bones and Muscles Summary Report Student Name: I. Skeletal system A. Long Bone Structure Define the following terms. Bone Organ of the skeletal system Cartilage Serves as a cushion Ligament Dense‚ regular connective tissue/bone to bone Tendons Dense‚ regular connective tissue/ bone to muscle Osteocytes Separated by an extracellular matrix hardened by deposits of calcium salts Diaphysis Long shaft of compact bone Compact bone Solid and dense
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the cell walls facing the cavity lumen or intracellular spaces. Sclerenchyma tissue is composed of cells with rigid cell walls and they function to support the weight of a plant organ. The main function is as supporting tissues that withstands various strains resulting from stretching and bending which makes the plant elastics. There are two types of sclerenchyma cells which are fibers andsclereids. They comprises a collection of cell types with uniformly and strongly thickened secondary walls
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Orthopedic - Muscular 1)The muscle that runs on a diagonal from the lower ribs to the iliac crest is the: A)rectus femoris muscle. B)external abdominal oblique muscle. C)latissimus dorsi muscle. D)rectus abdominis muscle. 2)The patient with cerebral palsy was described as having ataxia. This means that the patient: A)has slow skeletal muscle movements of his upper extremities. B)has slow‚ purposeless writhing of his hands. C)walks with an uncoordinated gait. D)has muscle jerking and spasms when
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The Tilted Arc and the Wrapping Reichstag Public art is considered an expression of nature‚ passion‚ freedom‚ or a reflection of the artist emotional state at the time of creation. It is visually stimulating to the public‚ where it is accessible to all. There are several elements of design that some may consider public art‚ such as; the building we live and work in‚ inanimate objects like the Eiffel Tower‚ fashion with it’s different season of what’s in and what’s not‚ and culinary cuisine. The
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There are three different types of epithelial tissues that are found inside the human body. There is the cutaneous membrane (tissue)‚ which we would refer to as “skin”. This part is the only epithelial tissue that is touched by air and is dry. The cutaneous membrane is composed of keratinizing stratified squamous epithelium. The second is the mucous membrane‚ which is the tissue used for absorption and secretion‚ protective lubricating mucus in the repertory and digestive system. This membrane
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Skeletal muscle moves because we want it to. It is controlled voluntarily (consciously). There is 2 types of contraction Isometric: As the muscle contracts‚ it remains the same length whilst the tension increases in an attempt to overcome the opposing force. Example: Holding a glass of water still in front of you. Isotonic: As the muscle contracts its length changes whilst the tension remains constant or develops to overcome the opposing force. Example: Lifting a glass of water to your mount and
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ring with nitrogen bonded to a carbonyl group. That ring is attached to another ring that is considered a cyclopentyl-thioether that is a cyclic ether with a sulfur atom instead of an oxygen atom. The last functional group is the Carboxylic acid‚ which is a carbonyl group bonded to an alcohol group. The beta-lactam ring and the cyclic thioether are‚ collectively‚ also considered a bicyclic compound. One can see that the lactam ring is highly strained: four near 90o angles create an instability
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THE STATUS OF RESEARCH ON THE REPAIR AND REGENERATION OF NERVOUS TISSUE OF THE CENTRAL NERVOUS STYSTEM The Status of Research On The Repair Of Nervous Tissue Of The Central Nervous System Lekisha Johnson Virginia College At Austin THE STATUS OF RESEARCH ON THE REPAIR AND REGENERATION OF NERVOUS TISSUE OF THE CENTRAL NERVOUS Today‚ most treatments for damage brain or spinal cord aim to relieve symptoms and limit further damage. But recent research into regeneration mechanism
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