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Embryology Chp 8
Tissues
11
Biology
Undergraduate 3
10/15/2009

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Term
Basement Membrane
Definition
thin, acelluar, chemical based structure between epithelium and connective tissue. Skin and oral mucosa
Term
Connective tissue
Definition
derrived from somites in prenatal development. Fewer cells larger matrix. Most abundant type. Vascular and renewable.
Term
Epithelium
Definition
comes in simple or stratified. rapid turnover. Little to no interstitial fluid. Cells capable of mitosis. Usually Avascular
Term
Granulation Tissue
Definition
Upon damage an immature layer of connective tissue is made fewer fibers and increased amout of blood vessels. Later is replaced by scar tissue.
Term
Rete Ridges (pegs)
Definition
Extensions of the epithelium into the connective tissue as they appear on a histological section
Term
Basal Layer of Oral Mucosa
Definition
deepest of the tissue layers. Single layer of cuboidal epithelial cells overlying the basement membrane.
Term
Osteons
Definition
centric layers of matrix into cylinders or "osteons" can also be called haversian canal. Unit of structure in compact bone "growth rings in tree trunk" Provide cellular nutrition for bone tissue.
Term
Periosteum
Definition
Outer portion of the bone. double layered dense connective tissue. Outer layer contains blood vessels and nerves. Inner layer contains single layer of cells that give rise to bone forming cells osteoblasts
Term

Monocytes

 

Definition
Most common WBC in the connective tissue proper. Macrophage after it migrates from the blood into tissues. Kidney Bean shaped nucleus 
Term
Immunoglobulin Production
Definition
formed by plasma cells in response to a specific immunogen, or antigen.
Term
Basil Lamina
Definition
Superficial portion of the basement membrane produced by epithelium consists of 2 layers - lamina lucida and lamina densa.
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