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Connective Tissue
A set about the histology of connective tissue
19
Histology
Professional
01/31/2015

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Cards

Term
What are the three major forms of connective tissue?
Definition
Embryonic
Adult
Special
Term
What are the four major types of connective tissue?
Definition
Mesenchyme - Embryonic
Loose - Irregular
Dense - Irregular and Regular
Specialized - Bone, blood, etc
Term
Regarding fiber to cell ratio, what is the ratio for areolar?
Definition
It has more cells than collogen fibers. It includes fibroblasts, macrophages, mast, cells, and plasma cells
Term
What are the identifying features of a fibroblast?
Definition
Spindle shaped cells with an oblong cigar-shaped nucleus that is roughly in the center.
Term
What do fibroblasts synthesize?
Definition
Collagen. It's synthesized as procollagen which is extruded as tropocollagen.
Term
What are the identifying features of a macrophage under the light microscope?
Definition
They are large, irregular shaped cells with granules and/or vacuoles in their cytoplasm. they also have large irregular nuclei.
Term
What are the two populations of mast cells?
Definition
1) Mucosal Mast cells in loose CT

2) CT proper mast cells
Term
What are the largest fixed cells of CT?
Definition
Mast cells
Term
From where do mast cells arise?
Definition
Bone marrow stem cells.
Term
What are the distinguishing features of a plasma cell under the light microscope?
Definition
Acentric nucleus with a 'clock face' appearance. There is sometimes a lightly staining area that represents the golgi.
Term
What are the distinguishing features of a lymphocyte under the light microscope?
Definition
Small cell that is almost entirely nucleus
Term
What are the distinguishing features of an eosinophil under the light microscope?
Definition
They stain red and have a lobulated nucleus.
Term
What forms the axis of glycosaminoglycans?
Definition
Hyaluronan.
Term
What is the purpose of hyaluronan in the extracellular matrix?
Definition
It is very hydrophillic.
Term
What attaches to hyaluronan?
Definition
Core proteins attach via a linker protein.
Term
What is referred to as "Ground substance"
Definition
they consist of proteoglycans, glycoproteins (like fibronectin and laminin) and glycoaminoglycans.
Term
What is the distinguishing feature of reticular CT?
Definition
It is a dense irregular CT with reticular fibers. they are long, dark fibers, and they are found in lymphoid tissue.
Term
What forms most joint capsules?
Definition
Dense irregular tissue
Term
What tissue makes up tendons and ligaments?
Definition
Dense regular
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