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anatomy bones classifications
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34 Terms
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1
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fissure
narrow slit
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foramen
hole for nerves and blood vessels
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canal
elongated
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aperture
large hole
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fenestra
hole covered with connective tissue
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meatus
tube-like
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elivations
rounded and irregular elevations known from ther size.
1) tubercle
2) tuberosity
3) tuberochanter
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depression classified according to their ?
pit , fovea , fossa
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notch:
sudden depression between 2 elevations
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fossa
large shallow depression
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groove
elongated depression contains nerve or blood vessels
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Articular surfaces
1) condyle
2) head
3)facet
4) trochela
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condyle
smooth part at the end of the bone who articulates with another bone to form a joint
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head
rounded condyle on a neck
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facet
smooth and flat which is usually covered with cartilage, articulates with another bone.
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trochela
grooved articular surface
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functions of bony skeleton ?
1) determines shape & lenght of the body
2) it forms jointed levers premitting movements
3) it protects the vital organs from damage
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joints
is the meaning of 2 bones
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fibrous joints:
rarely movable or immovable
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cartilginous joints
limited movements
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synovial joints
moves freely
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suture type
found in between skull
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syndesmosis type
formed in inferior tibio-fibular joints
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gomphosis
found in the jaw between the teeth roots and the jaw bones
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primary cartligenous
formed by the meeting of articulating bones by hyaline cartilage
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secondary cartligenous joint
1)surfaces are of hyaline and fibercartligenous components
2) allow slight movements
3) found in body midline
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types of synovial joints based on axial
1) uniaxial
2) biaxial
3) multiaxial
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hinge ( uniaxial )
allows the elbow to make flexion and extention
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pivot ( uniaxial )
when the bone rotates inside a ring
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saddle ( biaxial )
Occurs when the two touching surfaces have convex and concave
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ellipsoid (bioaxial )
a condyle articulates with elliptical depression which does flexion and extention and adduction and abduction
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bicondyler joint ( biaxial )
the movement it mainly around one axis and also limited
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plane synovial ( multiaxial )
bones past each other
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ball and socket ( multiaxial )
allows movement in almost any direction