Anatomy&Physiology Lab5


Anatomy & Physiol
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Periosteum
 
fibrous membrane which covers the bone
Articular cartilage
 
a thin layer of cartilage that covers the epiphyseal surface
Endosteum
 
membrane lining the marrow cavity
Epiphyseal plate
 
a layer of white hyaline cartilage at the junction of the epiphysis and diaphysis. Place where cartilage is replaced by bone cells (ossification) and is replaced by epiphyseal line.
Haversian canal
 
longitudinal canal in the center of haversian systems; contains blood vessels, nerves, and lymphatics
Lamellae
 
concentric rings of calcified matrix around the Haversian canal
Lacunae
 
cavities between lamellae that contain bone cells
Osteocytes
 
mature blood cells located within a lacunae
Canaliculi
 
small canals that radiate from the Haversian canal and interconnect lacunae with each other
why is bone classified as connective tissue?
 
because it is highly vascular, it supports, and it has a strong matrix containing osteocytes.
Route taken by blood through a bone to an osteocyte in a lacunae
 
arteryàcapillariesàperiosteumà Volkmann’s canalàhaversian canalà canaliculusàlacunae with osteocytes
hydroxyapatites
 
the inorganic compunds of the matirix of hyaline cartilage
collagen fibers
 
the organic compounds of the matrix of hyaline cartilage
Coronal
 
sutures that join the frontal and parietal bones
Sagittal
 
sutures in the midline which join the 2 parietal bones
Squamosal
 
sutures that join the temporal bone to the parietal and sphenoid bones
Lambdoidal
 
sutures that joins the occipital bones
Wormian bones
 
small bones which lie in the sutures in between cranial bones
Fontanels
 
soft spots on babys skulls
kyphosis
 
hunchback. exaggerated concave curve of the thoracic region
lordosis
 
swayback. exaggerated convex curve of the lumbar region
keep the vertebrae attached to each other, attachment of ribs, attachment of muscles
 
function of the processes
dense regular connective tissue
 
what makes up ligaments
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