Connective Tissue Flashcards
It is fixed and transient
Cells
Examples are ground substance and fibers
Extracellular matrix
Examples of this are GAG, proteoglycans, glycoproteins
Ground substance
Examples of this are Collagen and elastic
Fibers
Under fixed cells
Fibroblasts
Adipose cells
Pericytes
Mast cells
Macrophages
Under transient cells
Plasma cells,
lymphocytes,
neutrophils,
eosinophils,
basophils,
monocytes,
macrophages
The most abundant cell type in the connective tissue, are responsible for the synthesis of almost all of the ECM
FIBROBLASTS
Are modified fibroblast that demonstrate characteristics similar to those of both fibroblasts and smooth muscle cells
MYOFIBROBLAST
Absence of basal lamina
MYOFIBROBLAST
Abundant in areas undergoing wound healing
MYOFIBROBLAST
Surround endothelial cells of capillaries and small venules and reside outside the connective tissue compartment, because they possess their own basal lamina
PERICYTES
Are fully differentiated cells that function in the synthesis, storage and release of fats
ADIPOSE CELLS
Single, large lipid droplet
White adipose tissue (unilocular fat cells)
Multiple, small lipid droplets
Brown adipose tissue (multilocular fat cells)
Arise from bone marrow stem cells and function in mediating the inflammatory process and immediate hypersensitivity reactions
MAST CELLS
Macrophages belong to the mononuclear phagocytic system and
are subdivided into two groups of cells:
Phagocytes
Antigen-presenting cells APC
Act both as fixed and transient cell
MACROPHAGES
Hydrated, amorphous material that is composed of GAG, proteoglycans and glycoproteins
Ground substance
Collagen and Elastic
Fibers
Inelastic and possess great tensile strength
Collagen
Types of collagen:
in connective tissue proper, bone, dentin, cementum
Type I
Types of collagen:
hyaline and elastic cartilages
Type II
Types of collagen:
reticular fibers
Type III
Types of collagen:
lamina densa of the basal lamina
Type IV
Types of collagen:
placenta; associated with type I collagen
Type V
Types of collagen:
attaching the basal lamina to the lamina reticularis
Type VII
Composed of elastin (responsible for elasticity) and microfibrils (responsible for stability)
Elastic
TYPES OF CONNECTIVE TISSUE:
Loose (Areolar) and Dense
Connective Tissue Proper
Under Dense of Connective Tissue Proper:
Irregular
Regular (Collagenous and Elastic)
Reticular
Adipose
TYPES OF CONNECTIVE TISSUE:
Cartilage (Hyaline, Elastic, Fibrocartilage)
Bone
Specialized Connective Tissue
TYPES OF CONNECTIVE TISSUE:
Mesenchymal
Mucous
Embryonic Connective Tissues
TYPES OF CONNECTIVE TISSUE PROPER:
Loose
Dense
Reticular
Adipose
Composed of loose arrangement of fibers and dispersed cells embedded in a gel-like ground substance
LOOSE CONNECTIVE TISSUE
Abundant ground substance with fixed connective tissue cells (fibroblast, adipose, macrophages, mast cells)
LOOSE CONNECTIVE TISSUE
Scattered, loosely woven collagen, reticular and elastic fibers
LOOSE CONNECTIVE TISSUE
Located in the Spaces of the body just deep to the skin
LOOSE CONNECTIVE TISSUE
Lies below mesothelial lining of internal cavity
LOOSE CONNECTIVE TISSUE
Located in the Adventitia of blood vessels
LOOSE CONNECTIVE TISSUE
Located in the Parenchyma of glands
LOOSE CONNECTIVE TISSUE
Greater abundance of fibers and fewer cells than loose connective tissue
DENSE CONNECTIVE TISSUE
Mostly coarse collagen fibers interwoven into meshwork
Dense Irregular
Fibers are packed so tightly that space is limited for ground substance and cells
Dense Irregular
Fibroblasts are the most abundant cells of what connective tissue?
Dense Irregular
Located in the dermis of the skin, the sheaths of nerves, and the capsules of spleen, testes, ovary, kidney, lymph nodes
Dense Irregular
Composed of coarse collagen bundles densely packed and oriented in parallel cylinders
Dense Regular Collagenous
Located in the tendons, ligaments, aponeurosis
Dense Regular Collagenous
Coarse branching elastic fibers with only few collagen
Dense Regular Elastic
Located in the large blood vessels, ligamenta flava of vertebral column and suspensory ligament of the penis
Dense Regular Elastic