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Bone Tissue, Skeletal structure, Articulations
Human Anatomy, 2nd test Bones
29
Anatomy
Undergraduate 2
10/06/2009

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Term
Diaphysis
Definition
The middle part of a long bone. compact bone, yellow marrow, medullary cavity, holds nutrient artery, has no hematopoiesis
Term
Endosteum
Definition
the endo of the diapysis. Osteogenic, Osteoclast, Osteoblast,
Term
Osteon
Definition
The functional unit, longitudinal component of compact bone w/ 5 components:
Central canal, concentric lamellae, canaliculi, LACUNA, osteocyte.
Term
Periosteum- outer fibrous layer
Definition
attach to tendons & ligaments, Sharpey's fiber- dense cluster of callogen that runs through inner layer & connect to bone- very strong.
Term
Periosteum: inner osteogenic layer
Definition
new bone being formed, contains osteogenic cells & osteoblasts.
Term
Ossification process - Intramembranous- dense connective tissue
Definition
1)Mesenchymal cells-->ossification center to become osteoblasts that secrete osteoids
2)Osteoblasts collect at perimeter=Periosteum
3)Ossification centers blend to form traberculae.
4)Diploe= Compact-spongy-Compact
Term
Ossification process-Endochondral-cartilage model
Definition
Primary in Diaphysis.
2ndary proximal epiphysis followed by distal epiphysis.
Term
Interstitial Growth
Definition
Longitudinal, Diaphysis
Term
Appositional Growth
Definition
Circumferential
Term
Line Vs. Plate
Definition
A LINE indicates end of growth. A PLATE indicates continued growth.
Term
Red Marrow Vs. Yellow Marrow
Definition
Red Marrow- hematopoiesis, epiphysis
Yellow Marrow- Filled with fath, mineral, & blood vessels. Compact bone in medullary cavity
Term
Foramen
Definition
Bone marking= opening
Term
Fossa
Definition
Bone marking= shallow depression, site for muscle to arrive, other functions.
Term
Sulcus
Definition
Bone Marking= groove, slit w/ soft tissue, i.e: nerve or vessel.
Term
Meatus
Definition
Bone marking: tubelike passageway formed in bone
Term
Condyle=
Definition
large, round. where one bone will articulate with another.
Term
Facet=
Definition
Bone marking= Small, smooth, flat space on bone that meets w/ another.
Term
Trochanter
Definition
Bone marking= very large projection. Site for muscle attachment, Only 4 (2 on each femur)
Term
Tuberosity
Definition
Bone Marking= large, rounded roughened projection.
Term
Calvaria
Definition
Name of skull cap itself; bone that forms top of skull parietals, sagittal suture connects 2 parietal bones/
Term
lambdoid suture
Definition
separates occipital bone from parietal bone.
Term
kyphosis
Definition
hunchback, an exaggerated thoracic curve
Term
intervertebral disc
Definition
fibrocartillage disc in center, absorbs compressive force of one vertebrae down on another.
Term
zygapophyseal
Definition
articulation of superior and inferior articular processes.
Term
There are 33 bones in vertebrae. Give order with numbers.
Definition
Cervical-7
Thoracic-12
Lumar-5
Sternum-5 fused into one
coccyx-4
Term
spina bifida
Definition
Portion of posterior part of bone are missing.
Term
What are the cervical vertebrae names
Definition
C1=Atlas, no spinus process
C2=Axis(Allows head to rotate), odutoid process
C3-C6 can have a bifid process
C7= Vertebra Prominens
Term
Flail chest
Definition
inhale--->injured ribs poke inside.
Term
fontanels
Definition
soft-spots allow bones to overlap, very large, palpable, ocify very rapidly
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