anatomy and physiology
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Created by:
lailaonyx16 on November 30, 2011
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Description:
anatomy terms
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21 terms
Terms | Definitions |
|---|---|
 what bones contribute to the formation of the orbit ? | Frontal bone, maxilla, lacrimal, ethnoid, sphenoid, palatine, zygomatic. |
| why can the sphenoid be called the keystone of the cranial floor? | it is in contact with all of the other cranial bones. |
| vertebral type containing foramina in the transverse processes,through which the vertebral arteries ascend to reach the brain | cervical vertebra--typical |
| dens here provides a pivot for rotation of the first cervical vertebra | axis |
| transverse processes faceted for articulation with ribs;spinous process pointing sharply downward | thoracic vertebra |
| tail bone; vestigial fused vertebrae | coccyx |
| supports the head;allows a rocking motion in conjuction with the occipital bones | atlas |
| massive vertebrae;weight-sustaining | lumbar vertebra |
| composite bone;articulates with the hip bone laterally | sacrum |
| cavity enclosing the nerve cord | Vertebral Foramen |
| weight-bearing portion of the vertebra | The Body |
| openings providing for exit of spinal nerves | intervertebral foramina |
| structures that form an enclosure for the spinal cord | body and vertebral arch |
| How does a spinal nerve exit the vertebral column? | It exits from the vertebral column through openings ,invertebral foramina , between adjacent vertebrae. |
| what are two factors that permit flexibility of the vertebral column | atlas and axis |
| what kind of tissue composes the intervertebral discs? | fibrocartilage |
| herniated disc | a painful rupture of the fibrocartilage of the disc between spinal vertebrae |
| provides levers against which muscles pull | spinous process and transverse process |
| the major bony components of the thorax (excluding the vertebral column) are the ___ and ____ | ribs and sternum |
| true ribs | top 7 pairs of ribs that attach directly to the sternum by costal cartilage |
| false ribs | last 5 pairs of ribs; attach indirectly to sternum |
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