AIMC Anatomy and Physiology 1: Cells & Tissues
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Primary Tissues | show 🗑
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show | Complex multicellular organisms, groups of cells have differentiated in special ways to form tissues, organs and systems.
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Tissue | show 🗑
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show | Ectoderm, Mesoderm, Endoderm
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show | smooth - involuntary, cardiac-uni/binucleate, branched, striated, involuntary, only in heartskeletal-multinucleate, unbranched, striated
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show | distribution in the body, striated, number of nuclei in the cell, whether cells are branched or unbranched, voluntary or involuntary
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show | striated, voluntary. multinucleate, unbranched,
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show | striated, involuntary, only in heart. uni/binucleate, branched,
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show | Viceral, non striated and involuntary . Can also occurs at body periphery in eyes and skin. Cells are uninucleate, unbranched, and smooth (not striated). Involuntary
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Connective Tissue (general) | show 🗑
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Nerve Tissue (General) | show 🗑
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Functions of Connective Tissue | show 🗑
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Characteristics of Connective tissue | show 🗑
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show | Ground Substance, Fibers, Cells. Cells=living portion. GS and fibers occur between cells = extracellular matrix
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show | Unstructured material that fills the space bet. the cells and contains the fibers. Contains GAGs
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show | Contain many acid sugar molecules, get entangled in each other and trap water, varying fluidity, fx like sponges. Examples: Chondroitan sulfate, Keratan sulfate and HA
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show | Provide support. Collagen (strong and provide consistency and support for the tissues - they bind cells together) and Elastic (resiliant and stretchable found where additional elasticity is required i.e. in skin, blood vessels and lungs)
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Cells | show 🗑
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show | Includes Loose and Dense connective tissue
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Loose Connective Tissue | show 🗑
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show | Gel like structure with 3 fiber types, widely distributed under epithelia, packages organs/capilaries, GS is semi fluid/gelatinous (HA), fluid resovior
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show | Gel like matrix w/ 3 fiber types. Many closely packed adipocytes (fat cells). Focuses on storing energy for future use
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Adipocytes | show 🗑
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show | contains closely packed bundles of collagen, have few cells other than fibroblasts, poorly vascularized
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Dense Regular Connective tissue | show 🗑
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show | major fiber is collagen, fibers randomly arranged, some elastin is present (resiliency), i.e. dermis of the skin and fiberous capules of organs and joints
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Cartilage (General) | show 🗑
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show | protiens containing sugar molecules - charged polysaccharides. stick out from the protein core like bristles on bottlebrush. They intertwine, - charges attract and hold water, forming a fluid matrix w/ varied consistency. Sponge. ie. HA
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show | contains up to 80% water (due to GAGs i.e. HA and chondroitin), enables cartilage to rebound, most structures are covered by perichondrium & matrix is heavily invested with collagen fibers for strength and sometimes elastic fibers of resiliency
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show | a dense irrecular connective tissue capsule, that surrounds most cartilage structures (i.e. like the bone is surrounded by a periosteum). Nutrients diffuse via perichondrium
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show | the immature form of a cell that is responsible for secreting the particular extracellular matrix > connective tissue proper
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Chrondoblasts | show 🗑
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Osteoblasts | show 🗑
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show | the immature form of a cell that is responsible for secreting the particular extracellular matrix > blood
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