1 / 14

Connective Tissue Proper Cartilage Bone

Connective Tissue Proper Cartilage Bone. Connective Tissue Proper: Loose Connective Tissue Dense Connective Tissue Adipose Tissue. Loose Connective Tissue: Locations: -Space between skin and internal body parts -adventitia of blood vessels -surrounds gland parenchyma (epi)

abigail-ewing
Download Presentation

Connective Tissue Proper Cartilage Bone

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Connective Tissue Proper Cartilage Bone

  2. Connective Tissue Proper: Loose Connective Tissue Dense Connective Tissue Adipose Tissue

  3. Loose Connective Tissue: Locations: -Space between skin and internal body parts -adventitia of blood vessels -surrounds gland parenchyma (epi) -lamina propria of GI tract

  4. Loose Connective Tissue contains: -ground substance -fibroblasts -adipose cells -macrophages -mast cells -undifferentiated cells -collagen, elastic and reticular fibers

  5. Dense Connective Tissue: Dense Irregular CT Dense Regular CT Dense Regular Collagenous CT Dense Regular Elastic CT Reticular Tissue Adipose Tissue

  6. Dense Connective Tissue: • -same components as LCT • -fewer cells, more fibers • Dense Irregular CT - fiber arrangement is irregular • dermis of skin, nerve sheaths, capsules of spleen, • Testes, kindney, lymph nodes

  7. Dense Regular Collagenous CT – coarsely packed collagen bundles densely packed - parrallel or sheet like orientation • little space for cells and ground substance • Thin, sheet-like fibroblasts between collagen bundles • Tendons and ligaments

  8. Dense regular elastic connective tissue • Around large blood vessels • In the vertebral column • Has course branching elastic fibers • Few collagen fibers • Elastic fibers are arranged parallel to each other, forming thin sheets of fenestrated membranes

  9. Elastic fibers • Found in LCT and as course bundles and sheets in dense regular elastic connective tissue • Made by fibroblasts of CT and by smooth muscle cells in blood vessels • Fibers contain the protein elastin (lots of glycine, proline, aa’s desmosine, isodesmosine cross-link elastin molecules.

  10. Elastic fibers • Fibers contain the protein elastin (lots of glycine, proline, aa’s desmosine, isodesmosine cross-link elastin molecules and impart elasticity (can stretch) • Elastin in fiber core • Sheath of microfibrils (10 nm), a glycoprotein

  11. Reticular Tissue • Framework (scaffolding) for liver, adipose tissue, bone marrow, lymph nodes, spleen etc. • Fibroblasts make type II collagen

  12. Adipose Tissue • White (unilocular) • single lipid droplet, capillaries go into ct septa between fat cells. • Receptors for insulin, growth hormone, norepinephrine, glucocorticoids • Subcutaneous, in masses around the body

  13. Adipose Tissue • Brown (multilocular) • Multiple droplets • Many mitochondria with cytochromes, lots of bv near the adipocytes • In human infants around the neck and interscapular region (?around eyes?)

  14. Formation of adipocytes • Mesenchyme, may be a specific adipocyte precursor cell • Early Fetal: epitheloid precursors • Late fetal: secondary fat formation from fusiform precursor cells in ct.

More Related