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27 Cards in this Set
- Front
- Back
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axial skeleton
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consists of the skull, vertebral column, and the ribcage
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atlanto-axial joint
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articulation between the atlas (C1) and axis (C2); permits us to shake our heads "no"
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How many cervical vertebra do you have?
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seven
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atlanto-occipital joint
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articulates between the occipital condyles and the atlas; permits us to nod our heads "yes".
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odontoid process
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(Dens) C2-Most distinct feature of the axis. The dens acts as a pivot for rotation of both the atlas and the skull.
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Kyphosis
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Hunchback-often results from osteoporosis.
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Lordosis
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Swayback-stomach pushed anteriorly. Associated with pregnancy or obesity.
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Scoliosis
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Most common spinal curvature deformity. Abnormal lateral cuvature of spine.
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Thoracic vertebrae
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(T1-T12)Form superior regions of the back. The 12th thoracic vertebra articulates inferiorly w/ the L1.
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Lumbar vertebrae
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(L1-L5) Form the small of your back. L5 articulates inferiorly with the sacrum
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Sacrum
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(S1-S5) fused into a single bony structure.
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Coccyx
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"Tailbone"-(Co1-Co4) The coccygeal vertebrae starts to unite during puberty. In later years the coccyx also may fuse to the sacrum.
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Fontanels
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"Soft spots" on a baby's head- Fibrous membrane remnants that are not yet ossified.
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Hyoid bone
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Slender, curved bone located inferior to the skull bwtn the mandible and the larynx (voice box).**Does not articulate with any other bone in the skeleton.**
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Name the three tiny ear bones called auditory ossicles.
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Malleus, incus, & stapes
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What foramen does the dentist aim for when giving a shot?
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Madibular foramen
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Paranasal sinuses
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Ethmoidal, frontal, maxillary, and sphenoidal sinuses. Air filled chambers that open in to the nasal cavities.
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What bone forms the inferior part of the nasal septum?
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Vomer-Triangular shape-(farming plow)
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Which bone provides passageways for the olfactory nerves?
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Cribiform plate of the ethmoid bone-cribiform foramina
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The sella turcica of the sphenoid bone houses what gland?
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Pituitary gland
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Sutures
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(Seam) immovable fibrous joint that form the boundaries btwn the cranial bones. Wormian bones.
Coronal, Lamdboid, sagittal, & squamosal. |
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Craniosynostosis
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premature fusion/closing of one of more of these cranial sutures.
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vertebral column
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7 cervical vertebrae
12 thoracic vertebrae 5 lumbar vertebrae 5 fused sacral vertebrae 4 fused coccygeal |
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functions of the vertebral column
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-provide vertebral support
-supporting the weight of the head -helping to maintain an upright position' -helping to transfer axial weight to the appendicular skeleton of the lower limbs -housing and protecting the delicate spinal cord and providing a passageway for spinal nerves connected to the spinal cord |
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located between the pedicles of adjacent vertebrae are the...
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intervertebral foramen which allow a horizontally directed passageway through which spinal verves travel to other parts of the body
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one spinous process on a vertebrae opposite the body and two...
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transverse processes
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transverse processes are for muscle attachment and T1-T12 provide rib attachement
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