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41 Cards in this Set
- Front
- Back
Skeleton consists of : bones and divisions and parts of body |
206 bones |
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axial skeleton |
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skull |
formed by 14 facial and 8 cranial bones -most complex bony structure
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cranial bones of skull |
ethmoid frontal occipital sphenoid parietal- 2 temporal-2 |
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facial bones |
mandible
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facial bones function |
form framework of face, cavities of sense organs , passage for air and food, hold teeth, anchor... |
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cranial fos |
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small cavities of skull |
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Paired bones of the face |
6
Maxillary
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vomer - where is it and its function |
part of the facial bone, not cranial,
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special parts of the skull |
orbits
nasal cavity
paranasal sinuses |
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nasal septum- bones part of it |
ethomoid bone
vomer
septal cartilage |
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paranasal sinuses |
air-filled sinuses (4) located within
-Frontal
-Ethmoidal
-Sphenoid
-Maxillary
-can get inflammed, and fill with fluids and get infected with bacteria- can be painful.
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orbit walls |
7 bones
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orbit wall openings |
3 |
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Hyoid bone |
associated with skull, but not directly in contact with any other bone (only bone to be this way- no direct articulation with any other bone)
acts as movable base of togue
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vertebral column- what is it |
26 bones in adult
transmits weight of trunk to lower limbs
surrounds and protects spinal cord
walk upright- strain on the disks- causing wearing out over time, and puts all weight of body on hips |
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vertebral column- major regions |
(concave)-7 cervical vertebrae - neck region
(convex)-12 thoracic vertebrae
(concave)-5 lumbar
(convex)-1 sacrum ( 5 fused bones = 1 bone)
1 coccyx- inferior to sacrum (4 fused bones) |
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what stablizies the vertebral column |
ligaments- prevents the spinal cord from extending (hyperflexing) to far back, support, and minimizes amount of flextion |
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ligaments of vertebral column |
Anterior Longitudinal Ligaments-
Posterior Longitudinal Ligaments
Ligamentum flavum |
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Intervertebral Discs |
cushion-like pads between vertebrae
2 Types
Nucleus pulposus-
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Common Structure of Vertebrae |
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vertebral region characteristics |
specific regions of spine preform specific functions
types of movement occuring between vertebrae |
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Cervical Vertebrae |
concave with 7 bones
C1- atlas C2- axis - allows head to turn left to right C3 ... C7 |
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C1 |
Atlas:
lacks body and spinous process
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transverse foramen |
location through which the spinal cord nerves will leave through |
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occipital condyles at base of skull |
allows head movement up and down |
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C2 |
Axis
has body and spinous process
Dens |
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Dens |
Act as a pivot for rotation for the atlas and the skull |
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Cervical Vertebrae C3-C7 |
Body: small and wide laterally (side to side)
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