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Histology of Muscular Cartiliage Bone, IMG_4316, IMG_4317, IMG_4319, IMG…
Histology of Muscular Cartiliage Bone
Cartiliage
Types of Cartilage
Fibrocartilage
Does not possess a perichondrium
Matrix and exhibits bundles of type I collagen stain acidophilic
Located
Articulat disks
Pubic symphysis
Intervertebral disks
Attached to bone
Collagen fiber more than cells
Chondrocytes are often aligned in alternating parallel rows
Elastic cartilage
More opaque than hyaline cartilage
The matrix is more flexible than hyaline cartilage
Located
The external and internal auditory tubes
Epiglottis
In the pinna of the ear
Larynx
Chondrocytes are more abundant and larger than those of hyaline cartilage
Elastic fiber more than collagen fiber
Hyaline cartilage
Most abundant cartilage
Located
Nose
Ventral ends of the ribs
Tracheal rings
Larynx
Bronchi
From the cartilage template of the long bone
Collagen fiber are less than cells
Muscular System
Types of muscle
Cardiac Muscle
It’s made up of branching network
Les powerful than those of skeletal muscle
Found only in the walls of the heart (myocardium) and some large vessels
Innervated by visceral motor nerves
Skeletal Muscle
Move bone , support and shape to the body
Named on the basis of shape , attachments , function , position , finber orientation
Multinucleated fiber
Smooth Muscle
Can be present in the walls of blood arteries(tunica media)
Innervated by visceral motor nerves
Consists of elongated or spindle-shape fibers
Histology of muscle
Cardiac Muscle
1-2 nuclei in each 1 fiber
Concentric nucleus
Cylindrical Muscle fiber
Intercalated disc connects between fiber
Branching
Purkinjr cell
Smooth Muscle
1 nucleus in each 1 fiber
Concentric nucleus
Fusiform Muscle fiber
No cods striation , sacroplasmic reticulum , T-tubule
Skeletal Muscle
Each muscle fiber (endomysium)
Bundle of muscle fibers (perimysium)
Polygonal shape in cross section
Group of muscle bundle (epimysium)
100-1,000 nuclei in each 1 fiber (multinucleated eccentric)
10-40 mm in length
Muscle Fiber
Myofibrill(myofilaments) M line
Dark band(A band) Thick+Thin filament
Light band (I band) Thin filament
H-band Thick filament
Bone
Types of bone
Short bones
Irregular bones
Flat bones
Sesamoid bones
Long bones
Bone tissue
Compact bone tissue
Hard outer layer, gives bone their smooth, white and solid
Spongy bone tissue
Cell of bone
Osteoblast
Osteocyte
Osteoclasts
Cells associated with Bone
The bone remodeling process
Bone repair
Involves both intramembranous and endochondral bone formation
Bone formation
Intramembranous ossification
มักพบใน flat bone
Endochondral ossification
มักพบใน long bone
