ehab thebyan, mbbs, hs.peds connective tissue 2. copyright © 2010 pearson education, inc. table 4.1...
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Ehab Thebyan, MBBS, Hs.Peds
CONNECTIVE TISSUE 2
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Copyright © 2010 Pearson Education, Inc.
Table 4.1 Comparison of Classes of Connective Tissues (1 of 2)
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Copyright © 2010 Pearson Education, Inc.
Table 4.1 Comparison of Classes of Connective Tissues (2 of 2)
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Copyright © 2010 Pearson Education, Inc.
Figure 4.8g Connective tissues.
(g )Cartilage: hyaline
Description: Amorphous but firmmatrix; collagen fibers form an
imperceptible network; chondroblastsproduce the matrix and when mature
(chondrocytes ) lie in lacunae.
Function: Supports and reinforces;has resilient cushioning properties;
resists compressive stress.
Location: Forms most of theembryonic skeleton; covers the endsof long bones in joint cavities; forms
costal cartilages of the ribs; cartilagesof the nose, trachea, and larynx.
Photomicrograph: Hyaline cartilage from thetrachea (750x).
Costalcartilages
Chondrocytein lacuna
Matrix
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Figure 4.8h Connective tissues.
(h )Cartilage: elastic
Description: Similar to hyalinecartilage, but more elastic fibers
in matrix.
Function: Maintains the shapeof a structure while allowing
great flexibility.
Location: Supports the externalear (pinna); epiglottis.
Photomicrograph: Elastic cartilage fromthe human ear pinna; forms the flexible
skeleton of the ear (800x).
Chondrocytein lacuna
Matrix
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Figure 4.8i Connective tissues.
(i )Cartilage: fibrocartilage
Description: Matrix similar tobut less firm than that in hyaline
cartilage; thick collagen fiberspredominate.
Function: Tensile strengthwith the ability to absorb
compressive shock.
Location: Intervertebral discs;pubic symphysis; discs of knee
joint.
Photomicrograph: Fibrocartilage of anintervertebral disc (125x). Special staining
produced the blue color seen.
Intervertebraldiscs
Chondrocytesin lacunae
Collagenfiber
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Copyright © 2010 Pearson Education, Inc.
Figure 4.8j Connective tissues.
(j )Others: bone (osseous tissue)
Description: Hard, calcifiedmatrix containing many collagen
fibers; osteocytes lie in lacunae.Very well vascularized.
Function: Bone supports andprotects (by enclosing);
provides levers for the musclesto act on; stores calcium and
other minerals and fat; marrowinside bones is the site for blood
cell formation (hematopoiesis).
Location: Bones
Photomicrograph: Cross-sectional viewof bone (125x).
Lacunae
Lamella
Centralcanal
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Figure 4.8k Connective tissues.
(k )Others: blood
Description: Red and whiteblood cells in a fluid matrix
(plasma.)
Function: Transport ofrespiratory gases, nutrients,
wastes, and other substances.
Location: Contained withinblood vessels.
Photomicrograph: Smear of human blood (1860x); twowhite blood cells (neutrophil in upper left and lymphocyte
in lower right) are seen surrounded by red blood cells.
Neutrophil
Red bloodcells
Lymphocyte
Plasma
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Given the previous outline and examples
Can you name?First, the tissue type
Second, where in the body the tissue is found
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What kind of tissue does this represent?
Where in the body can you find this tissue?
delicate thin layers between tissues; present in all mucous
membranes
Loose (areolar) connective tissue
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Adipose tissue
fat
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Dense connective tissue
tendons; ligaments
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Hyaline cartilage
nose; ends of long bones; ribs
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Elastic cartilage
outer ear; epiglottis
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Fibrocartilage
between vertebrae; knee joints; pubic joint
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Bone
skeletal system
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What kind of tissue does this represent?
Where in the body can you find this tissue?
Blood
bloodstream