histology

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Author:
jmekyeung
ID:
272505
Filename:
histology
Updated:
2014-05-07 18:39:31
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histology
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Description:
Histology
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    • -Simple squamous
    • -(epithelial tissue)

    -single layer of flattened cells, disc-shaped
    • -Stratified squamous
    • -(epithelial tissue)

    -surface: squamous, basal: cuboidal/ columnar
    • -Columnar epithelial
    • -(epithelial tissue)

    -Single layer of tall cells with round nuclei, may have cilia layer
    • -Transitional epithelial
    • -(epithelial tissue)

    -surface: dome shaped/ squamouslike, basal:cuboidal/ columnar
    • -Bone
    • -(connective tissue)

    -Hard matrix containing many collagen fibers
    • -Mesenchyme
    • -(Connective tissue)

    -Irregular shaped cells spread out in a network of collagen fibers
    • -Areolar¬†
    • -(loose connective tissue)

    -Gel-like matrix with 3 fiber types: fibroblasts, macrophages, mast cells
    • -Adipose tissue
    • -(loose connective tissue)

    -fat cells with nucleus pushed to the side by fat droplet
    • -Nerve cells
    • -(nervous tissue)

    -cell processes extend from nucelus-containing cell body
    • -Hyaline cartilage
    • -(connective tissue)

    -Chondrocytes in lacunae in matrix of collagen fibers
    • -Skeletal muscle
    • -(skeletal tissue)

    -Long, cylindrical, multinucleate cells
    • -Simple cuboidal
    • -(kidney)
    • -(epithelial tissue)

    -Single layer of cube cells with large, spherical nuclei
    • -Elastic cartilage
    • -(connective tissue)

    -More elastic fibers in matrix than hyaline
    • -Dense regular connective tissue
    • -(white fibrous tissue)

    -Parallel collagen fibers, a few elastic fibers, cell type: fibroblast
    • -Pseudostratified columnar
    • -(trachea)
    • -(epithelial tissue)

    -Single layer of cells of differing heights, may contain mucus-secreting cells and bear cilia
    • -Dense irregular connective tissue¬†
    • -(hair shaft)

    -Irregularly arranged collagen fibers, some elastic fibers
    • -Reticular connective tissue
    • -(loose)

    -Network of reticular fibers in a loose ground substance
  1. Simple squamous
    -F: allow for diffusion, filtration

    -L: Kidney glomeruli, air sacs in lungs, lining of heart
  2. Simple cuboidal
    -F: secretion and absorption

    -L: kidney tubules, ducts, secretory surface of small glands
  3. Simple columnar
    -F: absorption, secretion of mucus, enzymes, ciliated types --> ciliary action

    -L: digestive tract, cilia --> small bronchi, uterine tubes
  4. Pseudostratified columnar
    -F: secretes mucus, propulsion of mucus via cilia

    -L: trachea, upper respiratory tract
  5. Stratified squamous
    -F: protects underlying tissues in areas subject to abrasion

    -L: esophagus, mouth, vagina, epidermis
  6. Transitional epithelium
    -F: stretches readily, permits storage of urine

    -L: lines ureters, bladder, urethra
  7. Areolar loose CT
    (CT proper)
    -F: wraps, cushions organs, has immune functions (macrophages)

    -L: under epithelia of body
  8. Adipose loose CT
    (CT proper)
    -F: provides reserve food fuel, insulation, support and protect organs

    -L: under skin in subcutaneous tissue, around kidney, eyeball, abdomen, breast
  9. Reticular loose CT
    (CT proper)
    -F: forms a soft internal skeleton that supports other cell types (WBCs, mast cells, macrophages)

    -L: Lymphoid organs (lymph nodes, bone marrow, spleen)
  10. Dense regular CT
    (CT proper)
    • -F: withstand tensile stress, attaches muscles to bone or to muscles
    • -L: tendons, most ligaments
  11. Dense irregular CT
    (CT proper)
    -F: withstand tension exerted in many directions, provides structural strength

    -L: fibrous capsules of organs and joints, dermis of skin
  12. Hyaline cartilage
    -F: supports and reinforces, serves as cushion

    -L: costal cartilages of ribs, nose, trachea, larynx
  13. Elastic cartilage
    -F: Maintain shape, while allowing flexibility

    -L: pinna of ear, epiglottis
  14. Bone tissue
    -F: supports and protects, levers for muscles, stores calcium, fat, hematopoiesis

    -L: bones
  15. Mesenchyme
    -F: gives rise to connective tissue

    -L: stem cells, embryonic tissue
  16. Skeletal muscle
    -F: voluntary movement, locomotion

    -L: skeletal muscles attached to bones
  17. Nervous tissue
    (motor neuron)
    -F: transmit electrical signals from receptors to effectors

    -L: brain, spinal cord, nerves

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