Cartilage - UNIVERSITY OF JORDAN DENTISTRY BATCH 2017-2022 · cartilage Fibrocartilage Main...
Transcript of Cartilage - UNIVERSITY OF JORDAN DENTISTRY BATCH 2017-2022 · cartilage Fibrocartilage Main...
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Cartilage
Practical part
Dr. Heba Kalbouneh Associate Professor of Anatomy and Histology
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Perichondrium
Perichondrium
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Inter-territorial matrix
Territorial matrix
Chondrocyte
Lacuna
Isogenous group
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Locations of the different kinds of cartilage
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Hyaline Cartilage
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Trachea
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Epiphyseal plate: it is responsible for the longitudinal
growth of bone .
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Elastic Cartilage
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Perichondrium
Lacuna
Chondrocyte
Elastic fiber
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Densely packed elastic fibers
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Fibrocartilage
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Collagen type 1
Chondrocyte
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Tendon
Bone
Fibrocartilage is found where tendon connects to bone
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Hyaline
cartilage
Elastic
cartilage
Fibrocartilage
Main features of
the extracellular
matrix
Homogeneous,
with type II
collagen
Type II collagen
and darker elastic
fibers
Type I collagen with
type II collagen
Major cells Chondrocytes,
chondroblasts
Chondrocytes,
chondroblasts
Chondrocytes,
fibroblasts
Presence of
perichondrium
Yes (except at
articular
cartilage)
Yes No
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Hyaline
cartilage
Elastic
cartilage
Fibrocartilage
Main locations /
examples
Many components
of upper
respiratory tract;
articular ends &
epiphyseal plates
of long bones;
fetal skeleton
External ear,
external acoustic
meatus, auditory
tube; epiglottis and
certain other
laryngeal
cartilages
Intervertebral
discs, pubic
symphysis,
meniscus, and
certain other
joints; insertions of
tendons
Main functions Provides smooth,
low-friction
surfaces in joints;
structural support
for respiratory
tract
Provides flexible
shape and support
of soft tissues
Provides
cushioning, tensile
strength and
resistance to
tearing and
compression
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Identify 1. Chondrocytes
2. Collagen fibers (type 1)
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Name the two types of matrix and what is the
difference between them?
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31
Identify
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Identify