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22 Cards in this Set
- Front
- Back
Structural Elements
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3 Primary
How elements are put together defines characteristics of tissue Ex. tendons - rope like, add strength |
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Ground Substance
Composition CAPS? proteoglycans? |
-unstructured material fills spaces between cells
-composed of fluids, cell adhesion prot. -CAPS: act as connective glue, attaches cells to matrix -proteoglycans - consist of proteincore which molecules are attaches to. Cags traps water to make viscious fluid |
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Fibers
Description Function Types |
-Proteinaceous
-Provide support & strength Types -Collagen (fibrous protein secreted in extracellular space, forms helix shape, strong high tensile strength) -Elastic (long thin branched fibers - make of protein elastins, allows for strech and distensibility) -Reticular (fine network of fibers, surrounds and supports, contiguous with collagen) |
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General Cells of Connective Tissue
Blasts |
Undifferentiated (but can if required)
Actively miotic cells Secrete ground substance & type of fiber specific for that tissue After secreting supportive matrix, may diff into less active state (cytes) |
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General Cells of Connective Tissue
Cytes |
A resting blast
Has few organelles CAn diff into blasts when signalled Fibrocytes may play important immune function with regard to injury & can circulate in blood |
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Specific Cells of Connective Tissue
Fibroblasts - descr. - makes? - locale? - differentiate? - stimulated by? |
Flat, branched out
Make structural fibers & ground subst. Abundant in rough ER & Gogli Make collagen, reticular, & elastin Can diff into adipocytes, osteoblasts, or smooth muscle when signalled Stimulated by growth factors |
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Specific Cells of Connective Tissue
Myofibroblasts - derived from - involved in? - contains? |
derived from blood vessels (pericytes)
Involved in tissue repair by pulling tissues together Contains protein actin which serves to pull tissues together Implicated on arterial thickening |
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Specific Cells of Connective Tissue
Chondroblasts manufactures? secretes? allows for? |
primary cell type involved in manufactr
of cartilage secretes collagen & elastin fibers, lg amounts of GAGS and water allows from compression & rebound |
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Specific Cells of Connective Tissue
Osteoblasts regulates? regulated by? produces? consists of? |
produces organic portino of bone
consists primarily of collagen regulates disposition of minerals and organic matrix regulated by a variety of growth factors |
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Specific Cells of Connective Tissue
Hematoblasts reside in? differentiation? involved in? |
hematopoietic stem cells
reside in bone marrow can diff into variety of cell types involved in manufacture of RBCs, WBCs, platelets, etc. |
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Types of Connective Tissue
Mesenchyme |
primary germ layer during embryonic development
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Types of Connective Tissue
Mucous derived from? forms? |
derived from mesenchyme
forms wharton's jelly |
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Loose Connective Tissue
Areolar d f |
Gel like matrix
Has all 3 fiber types Has fibroblasts, macrophages, mast cells, & WBC F-wraps & cushions organs, plays role in "itis", holds & conveys tissue fluid |
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Loose Connective Tissue
Adipose d f l |
contains lipids predominately
sparse closely packed f-insolate against heat loss, supports & cushions organs, provides reserve food fuel l- under skin, around kidneys & eyeballs |
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Loose Connective Tissue
Reticular d f |
network of reticular fibers
lg amount of ground substance f- forms soft internal skeleton, supports & protects |
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Dense Connective Tissue
Dense Regular d f l |
predominately parallel arrangment of
collagen fibers f - attach muscle to bone, bone to bone l - tendons, ligaments |
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Dense Connective Tissue
Dense Irregular d major cell type f l |
primarily irregularly arranged collagen
fibers some elastic fibers major cell type is fibroblast f - able to withstand tenstion exerted in may directions l - dermis of skin, submucosa of dig tract |
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Cartilage
also called? d f l |
Hyaline
amorphous but firm matrix f- supports & reinforces, has resiliant cushioning properties, resists comprehensive stress l- embryonic skeleton, covers ends of long bones, in joint cavities, forms costal cartilages |
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Cartilage (Elastic)
d f |
similar to hylaine but densely coated
with elastic cartilage f - maintains shape of structure while allowing elasticity |
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Fibrocartilage
d f |
matrix similar to but less than hyaline
thick collagen fibers predominate f- tensile strength with ability to absorb shock |
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Osseous
means? d d of matrix |
Bone
Hard Calcified matrix containing many collagen fibers |
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Blood Tissue
d l f |
Red & white in a fluid matrix
Function - transport |