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What type of connective tissue is this?
Compact bone
(from skeleton)
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What type of connective tissue is this?
Blood
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What is tissue comprises much of the body and is the most abundant type of tissue by weight?
Connective tissue
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What are some general characteristics of Connective Tissues?
- - bind structures together
- - provide support and framework
- - serves as framework- fills spaces
- - stores fat- produce blood cells
- - protect agianst infections
- - helps repair cell damage
- - have a matrix (materials between the cells)
- - have varying degrees of vascularity
- - have cells that usually divide
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Describe the fibroblast cell type in connective tissues.
(might not be on the exam)
- - fixed cells (wherever they are is where they stay)
- - most common cells
- - large, star shapped
- - produce fibers
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What are the eleven (11) types of Connective tissues?
- - Areolar connective tissue
- - Adipose tissue
- - Reticular connective tissue
- - Dense regular connective tissue
- - Dense irregular connective tissue
- - Elastic connective tissue
- - Hyaline cartilage
- - Elastic cartilage
- - Fibrocartilage
- - Bone
- - Blood
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Connective Tissue:
Describe Areolar Connective Tissue.
- - thin membrane (throughout the body)
- - cells = mainly fibroblasts = located far apart
- - elastic fibers
- - binds skin to the underlying organs
- - fills space between muscles
- - underlies most layers of epithelium
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Connective Tissue:
Describe Adipose Tissue.
- - stored fat in cell's cytoplasm
- - nuclei are pushed to one side
- - provides stored engergy supply in fat vacules
- - protects, (heat) insulates, stores fat
- - beneath the skin, around the kidneys, behind the eyeballs, on the surface of the heart
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Connective Tissue:
Describe Reticular Connective Tissue.
- - thin collagenous fibers (in a three-dimensional network)
- - helps provide the framework of certain internal organs (liver, spleen, lymphatic organs)
- - collagenous fibers
- - white blood cells
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Connective Tissue:
Describe Dense Connective Tissue (regular).
- - many, closely packed, thick, collagenous fibers*
- - fine network of elastic fibers
- - a few cells = mostely fibroblasts
- - binds tendons and ligaments
- - main tissue of tendons and ligaments
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Connective Tissue:
Describe Dense Connective Tissue (irregular).
(wasn't one on the lab report)
- - thicker
- - interwoven
- - more randomly organized
- - in the dermis, the inner skin layer
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Connective Tissue:
Describe Elastic Connective Tissue.
- - yellow, elastic fibers in parallel strands
- - or in branching networks
- - between are collegenous fibers and fibroblasts
- - connects parts of the spinal column
- - in walls of arteries and airways
- - occurs in ligament attachments between vertebrae and artery walls
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Connective Tissue:
Describe Hyaline cartilage.
- - most common type
- - cells in solid-gel matrix
- - has very fine collagenous fibers in exracellular matrix
- - looks somewhat like white glass
- - on the end of bones, nose, and rings in walls of repiratory passages
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Connective Tissue:
Describe Elastic cartilage.
- - more flexiable than hyaline (similar)
- - extercellular matrix has a dense network of elastic fibers*
- - provides framework of external ear and part of larynx
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Connective Tissue:
Describe Fibrocartilage.
- - very tough tissue
- - many collagenous fibers
- - shock absorber for structures subjected to pressure
- - examp: forms pads (intervertebral discs) between the individual bones (vertebrae)
- - also cushions bones inthe knee and pelvic
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Connective Tissue:
Describe Bone.
- - most rigid connective tissue
- - bones of skeleton, middle ear
- - matrix contains collegen fibers and mineral salts
- - supports body structures
- - protects vital structures
- - cells arranged around central canal
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Connective Tissue:
Describe Blood.
- - cells suspended in plasma (fluids extracellular matrix)
- - contains red blood cells, white blood cells, and platelets (cellular fragments)
- - red blood cells (transports gases)
- - white blood cells (fights infections)* [have a dark look]
- - platelets (blood cloting)
- - large amounts of fluids and lacks fibers
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