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Figure 4.7 - PowerPoint PPT Presentation


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Cell types. Extracellular matrix. Ground substance. Fibers • Collagen fiber • Elastic fiber • Reticular fiber. Macrophage. Fibroblast. Lymphocyte. Fat cell. Capillary. Mast cell. Neutrophil. Figure 4.7. Connective Tissue: Embryonic. Mesenchyme—embryonic connective tissue

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slide1

Cell types

Extracellular

matrix

Ground substance

Fibers

• Collagen fiber

• Elastic fiber

• Reticular fiber

Macrophage

Fibroblast

Lymphocyte

Fat cell

Capillary

Mast cell

Neutrophil

Figure 4.7

connective tissue embryonic
Connective Tissue: Embryonic
  • Mesenchyme—embryonic connective tissue
    • Gives rise to all other connective tissues
    • Gel-like ground substance with fibers and star-shaped mesenchymal cells
overview of connective tissues
Overview of Connective Tissues
  • For each of the following examples of connective tissue, note:
    • Description
    • Function
    • Location
slide4

Teratomas are made up of a variety of parenchymal cell types representing more than 1 germ layer. The most common location is sacrococcygeal (57%). Because some arise from totipotential cells, they are encountered commonly in the gonads (29%). By far, the most common gonadal location is the ovary.  Cells differentiate along various germ lines, essentially recapitulating any tissue of the body. Examples include hair, teeth, fat, skin, muscle, and endocrine tissue

epithelial membranes
Epithelial Membranes
  • Mucous membranes
    • Mucosae
      • Line body cavities open to the exterior (e.g., digestive and respiratory tracts)
slide8

Mucosa of

nasal cavity

Mucosa of

mouth

Esophagus

lining

Mucosa of

lung bronchi

(b) Mucous membranes line body cavitiesopen to the exterior.

Figure 4.11b

epithelial membranes1
Epithelial Membranes
  • Serous Membranes
    • Serosae—membranes (mesothelium + areolar tissue) in a closed ventral body cavity
    • Parietal serosae line internal body walls
    • Visceral serosae cover internal organs
slide10

Parietal

peritoneum

Parietal

pleura

Visceral

pleura

Visceral

peritoneum

Parietal

pericardium

Visceral

pericardium

(c) Serous membranes line body cavitiesclosed to the exterior.

Figure 4.11c