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Questions and Answers
Which type of connective tissue is derived from mesenchyme?
Which type of connective tissue is derived from mesenchyme?
Hyaline cartilage is one of the types of dense connective tissue.
Hyaline cartilage is one of the types of dense connective tissue.
False
What is the defining characteristic of connective tissue regarding cell arrangement?
What is the defining characteristic of connective tissue regarding cell arrangement?
Cells are widely scattered rather than closely packed.
Connective tissue primarily serves to provide ____ and support to various organs in the body.
Connective tissue primarily serves to provide ____ and support to various organs in the body.
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Match the types of cartilage with their characteristics:
Match the types of cartilage with their characteristics:
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What type of connective tissue is known for storing fat?
What type of connective tissue is known for storing fat?
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Cartilage is considered to be a vascular tissue.
Cartilage is considered to be a vascular tissue.
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Name one function of vascular (blood) tissue.
Name one function of vascular (blood) tissue.
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Which type of cell is primarily responsible for engulfing bacteria and cellular debris?
Which type of cell is primarily responsible for engulfing bacteria and cellular debris?
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Adipocytes are directly involved in blood clotting.
Adipocytes are directly involved in blood clotting.
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What is the primary function of plasma cells?
What is the primary function of plasma cells?
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Fibroblasts are responsible for forming __________ and ________ fibers.
Fibroblasts are responsible for forming __________ and ________ fibers.
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Match the type of connective tissue cell with its function:
Match the type of connective tissue cell with its function:
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Where is adipose tissue NOT commonly found?
Where is adipose tissue NOT commonly found?
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Leucocytes originate from fibroblasts.
Leucocytes originate from fibroblasts.
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What chemical substances are produced by mast cells?
What chemical substances are produced by mast cells?
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Which type of connective tissue has a predominance of collagenous fibers arranged in an organized manner?
Which type of connective tissue has a predominance of collagenous fibers arranged in an organized manner?
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Dense irregular connective tissue is found in the periosteum of bones.
Dense irregular connective tissue is found in the periosteum of bones.
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What type of cells are found in mature cartilage?
What type of cells are found in mature cartilage?
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The tissue that provides stretch and strength, particularly in the walls of elastic arteries, is called __________ connective tissue.
The tissue that provides stretch and strength, particularly in the walls of elastic arteries, is called __________ connective tissue.
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Match the following types of connective tissue with their primary characteristics:
Match the following types of connective tissue with their primary characteristics:
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Which connective tissue contains fibroblasts only in the spaces between fibers?
Which connective tissue contains fibroblasts only in the spaces between fibers?
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Cartilage contains its own blood vessels and nerves.
Cartilage contains its own blood vessels and nerves.
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What is the primary function of reticular connective tissue?
What is the primary function of reticular connective tissue?
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Study Notes
Connective Tissue
- Most abundant tissue in the body
- Supports and binds tissues together
- Rich blood supply except for cartilage which is avascular
- Does not occur on free surfaces of organs
- Contains widely scattered cells
- Contains intercellular material called matrix
- Functions include protection, support, and binding organs together.
Cells of Connective Tissue
- Produce the intercellular substance that determines the tissue's qualities
- Intercellular substance can be fluid, semi-fluid, mucoid, or fibrous
- Connective tissue cells store fat, ingest bacteria and cell debris, form anticoagulants, and produce antibodies
Types of Connective Tissue
Embryonic Connective Tissue
- Mesenchyme
- Mucous Connective Tissue (Wharton's Jelly)
Adult Connective Tissue
-
Connective Tissue Proper
- Loose (areolar) connective tissue
- Adipose tissue
- Dense (collagenous) connective tissue
- Elastic connective tissue
- Reticular connective tissue
-
Cartilage
- Hyaline cartilage
- Fibrocartilage
- Elastic cartilage
- Osseous (bone) tissue
- Vascular (blood) tissue
Mesenchyme
- Found exclusively in the embryo.
- The origin of all other connective tissues
- Found beneath the skin and along developing bones
- Mesenchymal cells differentiate into fibroblasts in blood vessels
Mucous Connective Tissue (Wharton's Jelly)
- Found in umbilical cord
- Has a thick consistency that can impede drug movement.
Loose Connective Tissue Cells
- Fibroblasts - Large, flat, branching cells that form collagenous and elastic fibers and ground substance when tissue is injured.
- Macrophages - Irregular, short, branching cells derived from white blood cells called monocytes. Engulf bacteria and cellular debris by phagocytosis.
- Plasma Cells - Small, round or irregular cells derived from lymphocytes. Produce antibodies for the immune system. Found in connective tissue of digestive tract and mammary glands.
- Mast Cells - Derived from basophils. Produce heparin (anticoagulant), histamine, serotonin, and chemicals that dilate small blood vessels.
- Melanocytes (Pigment Cells) - Produce melanin.
- Adipocytes (Fat Cells) - Derived from fibroblasts. Contain a large droplet of fat that pushes the cytoplasm and nucleus to the edge of the cell.
- Leucocytes (White Blood Cells) - Found in loose connective tissue.
Adipose Tissue
- A type of loose connective tissue that specializes in fat storage.
- Found beneath the skin, around the kidneys, at the base and on the surface of the heart, in the marrow of long bones, as padding around joints, and behind the eyeball.
Dense (Collagenous) Connective Tissue
- Close packing of fibers
- Fibers irregularly arranged where tension is exerted in various directions
- Fibers regularly arranged where tension is exerted in one direction
- Less intercellular substance than in loose connective tissue
Dense Irregular Connective Tissue
- Found in fasciae, the reticular dermis of the skin, the periosteum of bone, the perichondrium of cartilage, and membrane capsules around kidneys, liver, testes, and lymph nodes.
Dense Regular Connective Tissue
- Predominantly collagenous fibers arranged in bundles
- Fibroblasts are placed in rows between bundles
- Silverly white, tough, yet somewhat pliable
- Principal component of tendons, ligaments, and aponeuroses.
### Elastic Connective Tissue
- Predominantly freely branching elastic fibers
- Yellow color
- Stretchable and snaps back into shape
- Provides stretch and strength
- Found in cartilages of the larynx, walls of elastic arteries, trachea, bronchial tubes, and lungs.
### Reticular Connective Tissue
- Interlacing reticular fibers
- Forms a delicate supporting stroma for many organs (liver, spleen, lymph nodes)
Cartilage
- Connective tissue enduring more stress than other connective tissue types
- Avascular and lacks nerves
- Consists of a dense network of collagenous and elastic fibers
- Mature cartilage cells are called chondrocytes.
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Description
Dive into the fascinating world of connective tissue! This quiz covers the characteristics, functions, types, and cells of connective tissue, including embryonic and adult varieties. Test your knowledge and deepen your understanding of this essential component of the human body.
