Anatomy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| The axial skeleton has how many bones? | 80
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| The axial skeleton consists of the.... | Skull, vertebral Column, Hyoid, & Bony Thorax
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| Lies inferior to the mandible, acts as a movable base for the tongue, the only bone with no direct articulation with any other bone | Hyoid Bone
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| The hyoid bone is made up of the.... | 2 Greater Horns, 2 Lesser Horns, & the Body
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| The vertebral column is made up of how many bones? | 26 bones in an adult
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| Surrounds and protects the spinal cord, transmits weight of the trunk to the lower extremeties, also the attachment sites for muscles of the neck & back | Vertebral Column
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| 5 Regions of the Vertebral Column | Cervical, Thoracic, Lumbar, Sacrum, & Coccyx
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| C1-C7; 7 vertebrae of the neck region | Cervical Region
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| T1-T12; 12 vertebrae of the ________ | Thoracic Region
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| L1-L5; 5 vertebrae of the lower back | Lumbar Region
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| Inferior to the lumbar vertebrae and superior to the coccyx | Sacrum
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| Most inferior region of the vertebral column | Coccyx
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| Cushion-like pads between the vertebrae fibrocartilage, act as shock absorbers and compose about 25% of the height of the vertebral column | Intervertebral Discs
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| How many curvatures does the vertebral column have? | 4
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| The concave curvatures of the vertebral column from the posterolateral view | Cervical & Lumbar Curvatures
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| The convex curvatures of the vertebral column from the posterolateral view | Thoracic & Sacral Curvatures
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| The smallest and lightest vertebrae | C1-C7; the Cervical Vertebrae
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| Other name of the C1? | Atlas
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| Other name of the C2? | Axis
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| Vertebra that supports the skull and allows for flexion & extension of the neck | C1 (Atlas)
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| Vertebra that allows for rotating of the head from side to side, Dens projects superiorly | C2 (Axis)
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| Projects superiorly and acts as a pivot for rotation of the atlas and skull | Dens (Odontoid Process)
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| These vertebrae all articulate with the 12 pairs of ribs | T1-T12; Thoracic Vertebrae
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| Bodies are thick and robust | L1-L5; Lumbar Vertebrae
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| Shapes the posterior wall of the pelvis, superior surface articulates with L5, inferior surface articulates with the coccyx | Sacrum
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| the Tailbone, most inferior part of the vertebral column | Coccyx
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| Forms the framework of the chest, protects the thoracic organs, supports shoulder girdle and upper limbs | Bony Thorax
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| Components of the Bony Thorax | Thoracic Vertebrae
Ribs
Sternum and Costal Cartilage
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| Breastbone, made up of three sections | Sternum
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| Superior section that articulates with the medial ends of the clavicles | Manubrium
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| Bulk of the sternum, sides are notched at articulations for the costal cartilage of ribs 2-7 | Body (of sternum)
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| Inferior end of the sternum that ossifies around age 40 | Xiphoid Process
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| Attach to the sternum anteriorly and the vertebral column posteriorly, 12 pairs | Ribs
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| Superior 7 pairs of ribs that attach to the sternum directly with costal cartilage | True Ribs
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| Inferior 5 pairs of ribs that attach to the sternum indirectly | False Ribs
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| Part of the false ribs that do not attach to the sternum at all, inferior two pairs of ribs | Floating Ribs
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Created by:
sbarton
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