Axial Skeleton Word Scramble
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Question | Answer |
The axial skeleton has how many bones? | 80 |
The axial skeleton consists of the.... | Skull, vertebral Column, Hyoid, & Bony Thorax |
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 |
The hyoid bone is made up of the.... | 2 Greater Horns, 2 Lesser Horns, & the Body |
The vertebral column is made up of how many bones? | 26 bones in an adult |
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 |
5 Regions of the Vertebral Column | Cervical, Thoracic, Lumbar, Sacrum, & Coccyx |
C1-C7; 7 vertebrae of the neck region | Cervical Region |
T1-T12; 12 vertebrae of the ________ | Thoracic Region |
L1-L5; 5 vertebrae of the lower back | Lumbar Region |
Inferior to the lumbar vertebrae and superior to the coccyx | Sacrum |
Most inferior region of the vertebral column | Coccyx |
Cushion-like pads between the vertebrae fibrocartilage, act as shock absorbers and compose about 25% of the height of the vertebral column | Intervertebral Discs |
How many curvatures does the vertebral column have? | 4 |
The concave curvatures of the vertebral column from the posterolateral view | Cervical & Lumbar Curvatures |
The convex curvatures of the vertebral column from the posterolateral view | Thoracic & Sacral Curvatures |
The smallest and lightest vertebrae | C1-C7; the Cervical Vertebrae |
Other name of the C1? | Atlas |
Other name of the C2? | Axis |
Vertebra that supports the skull and allows for flexion & extension of the neck | C1 (Atlas) |
Vertebra that allows for rotating of the head from side to side, Dens projects superiorly | C2 (Axis) |
Projects superiorly and acts as a pivot for rotation of the atlas and skull | Dens (Odontoid Process) |
These vertebrae all articulate with the 12 pairs of ribs | T1-T12; Thoracic Vertebrae |
Bodies are thick and robust | L1-L5; Lumbar Vertebrae |
Shapes the posterior wall of the pelvis, superior surface articulates with L5, inferior surface articulates with the coccyx | Sacrum |
the Tailbone, most inferior part of the vertebral column | Coccyx |
Forms the framework of the chest, protects the thoracic organs, supports shoulder girdle and upper limbs | Bony Thorax |
Components of the Bony Thorax | Thoracic Vertebrae Ribs Sternum and Costal Cartilage |
Breastbone, made up of three sections | Sternum |
Superior section that articulates with the medial ends of the clavicles | Manubrium |
Bulk of the sternum, sides are notched at articulations for the costal cartilage of ribs 2-7 | Body (of sternum) |
Inferior end of the sternum that ossifies around age 40 | Xiphoid Process |
Attach to the sternum anteriorly and the vertebral column posteriorly, 12 pairs | Ribs |
Superior 7 pairs of ribs that attach to the sternum directly with costal cartilage | True Ribs |
Inferior 5 pairs of ribs that attach to the sternum indirectly | False Ribs |
Part of the false ribs that do not attach to the sternum at all, inferior two pairs of ribs | Floating Ribs |
Created by:
sbarton
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