Connective tissue Flashcards
It is specialized to physically support and connect other tissues and maintain the water required for metabolite diffusion to and from cells.
Connective tissue
Most abundant tissue in the body.
Connective tissue
Responsible for attachment of one tissue to another.
Ligaments; Tendons
Transport of materials.
Blood
Storage of materials.
Fats; Bones
Unlike any other tissue types, the major constituents of connective tissues are
Extracellular Matrix (ECM)
o Large protein fibers
o Non-fibrous areas of unstained ground substance rich in various GAGs and water.
Extracellular Matrix (ECM)
3 Cells
- Cytes- mature
- Blasts- immature
- Clasts
3 Ground Substance
- Glycosaminoglycans
(GAGs); disacharride - Proteoglycans
- Multiadhesive Glycoproteins
3 Main Types of Fibers
- Collagen Fiber (Type I, II, III)
- Elastic Fiber
- Reticular Fiber
Generic type of tissue and they don’t form distinct organs.
Connective tissue proper
Used as fillers or major attachments.
Connective tissue proper
Classified according to the amount of collagen and ground substance present.
Connective tissue proper
Has specific function present in different organ.
Specialized Connective tissue
Fat cells predominate is commonly called what?
Adipose tissue
2 types of Adipose Tissue
- White adipose tissue
- Brown adipose tissue
The more common type, is composed of cells that, when completely developed, contain one very large droplet of whitish-yellow fat in their cytoplasm.
[types of adipose tissue]
White adipose tissue
Contains cells with multiple lipid droplets interspersed among abundant mitochondria, which give these cells a darker appearance.
[types of adipose tissue]
Brown adipose tissue
Connective tissue proper in which the fibers are tightly packed together and runs toward a single direction which provide resistance along its route.
Dense regular connective tissue
Connective tissue proper looking empty due to cells containing fat vacuoles the produces ring like structures under the microscope.
Adipose tissue
Types of the adipose tissue functions best in thermal insulation?
White adipose tissue
Primary function of this cartilage is to provides flexible shape and support of soft tissues.
Elastic cartilage
Growing bone cells which synthesize and secrete the organic components of the matrix.
Osteoblasts
Both types of the adipose tissue functions to store fats and lipids.
White & Brown adipose tissue
A fiber types mainly consist the adipose tissue
Reticular fibers
Fibroblasts, chondroblasts (immature), osteoblasts (bone), odontoblasts (dental) originated from the structural cell.
[SIDEr]
Structural
Plasma cell, leukocytes, eosinophils immune responses.
[SIDEr]
Immunological
Neutrophils, mast cells, basophils, macrophages.
[SIDEr]
Defense
adipose cells
[SIDEr]
Energy resorvoir
most abundant fiber type.
[fibers]
Collagen fibers
high tensile strength but are also flexible.
[fibers]
Collagen fibers
thinner than collagen fibers.
[fibers]
Reticular fibers
They are found in extensive networks and provide structural support and framework.
[fibers]
Reticular fibers
They are strong but can be stretched up to 150% of their original length without breaking.
[fibers]
Elastic fibers
More cells; fewer fiber, loose ordinary.
[proper c.t]
Loose Connective Tissue
Less cells, more fiber.
[proper c.t]
Dense Connective Tissue
Made up of cells that consists of gelatinous matrix.
[specialized c.t]
Cartilage
It is unique in that its extracellular matrix is mineralized. (calcium matrix]
[specialized c.t]
Bone tissue
It is fluid connective tissue that transports gases, nutrients, and wastes throughout the body. (plasma matrix)
[specialized c.t]
Blood
3 Specialized Connective Tissue
- Cartilage
- Bone tissue
- Blood
Are derived from monocyte.
Macrophages
Removes cellular debris and in protects the body against foreign invaders (phagocytosis).
Macrophages
It is basophilic and contains many small vacuoles and small dense granules.
Cytoplasm
Probably derived from precursors in the bone marrow.
Mast cells
Ovoid and possess centrally placed, spherical nucleus.
Mast cells
Derived from undifferentiated mesenchymal cells or fibroblasts.
Adipocytes
Specialized fibroblasts that synthesize Type III collagen.
Reticular cells
Derived from B lymphocytes, resided in chronic inflammation areas.
Plasm cells
Present in limited numbers in all connective tissue but numerous in the digestive tract.
Plasma cells
Present in variable numbers in practically all connective tissue.
Leucocytes
2 forms of Adipose Tissue
- Yellow/white
- Brown
Single fat vacuole; adult human body.
[forms of adipose tissue]
White/Yellow
numerous droplets; body of newborns
[forms of adipose tissue]
Brown
Made up of elastic fibers that form bundles arranged parallel to each other.
Elastic tissue
Found in ligamentum flava of vertebral column and suspensory ligament of penis.
Elastic tissue
Contains mostly coarse collagen fibers interwoven into a meshwork.
[dense c.t]
Dense irregular connective tissue
Is composed of coarse collagen bundles densely packed and oriented into parallel cylinders or sheets that resist tensile forces.
[dense c.t]
Dense regular connective tissue
Connective tissue proper looking empty due to cells containing fat vacuoles the produces ring-like structures under the microscope.
Adipose tissue
Primary function of this cartilage is to provides flexible shape and support of soft tissues.
Elastic Cartilage
Mainly consist the adipose tissue.
Reticular fibers
Considered as microvilli; length is as long as cilia (same function as microvilli)
Steriocilia
Wider gap
Desmosomes
Facilitate the attachment; found in the stratum basila (basal surface)
Hemidesmosomes
Nearest at the apical surface; cells are tightly use together.
Zonula
Small gap in between the cells; filled with adhesion proteins
Adherens
Widest gap
Gap junction
Exchange of substance; small molecules or ions.
Connexons
