Name ____________________________________________ Date ______ Hour ___ SKULL BONE PRACTICE Name the bone (numbered) or the marking (lettered) for each part of the skull. Then label them on the picture. BONES OF THE CRANIUM: 1. ___________________________ The most anterior of the 3 most superior bones in the body. Forms the forehead a. ___________________________ A tiny opening above the eye orbit that allows artery and nerve passage. 2. ___________________________ A key bone of the cranium; holds all other bones together along the base of the skull; situated just posterior and slightly superior to the teeth. 3. ___________________________ Bone that is most deeply hidden bone of the skull. It forms most of the bony area between the nasal cavity and the eye orbit (socket). Contains some sinuses. 4. ___________________________ The more posterior of the 3 most superior bones in the body. They form almost the whole top of the skull. b. ___________________________Suture that joins this bone to the frontal bone. 5. ___________________________ Tiny bones of the middle ear. (Not shown on pictures) 6. ___________________________ The most posterior bone of the skull; it also forms most of the base of the skull. c. ___________________________ Suture that attaches the parietal bone to this bone. d. ___________________________ Large opening allowing the brain stem to pass through to the rest of the brain. e. ___________________________ These condyles articulate with the atlas (the 1st vertebra) f. ___________________________ The “knot” at the very back of the skull. The point of many muscle attachments. 7. ___________________________ These bones (there are 2) form the area the ear is attached to. g. ___________________________ suture that joins the temporal and parietal bones. h. ___________________________ the ear canal; leads to the ear drum. i. ___________________________ The process just posterior to the ear; is attachment site for several neck muscles. j. ___________________________ Process that extends anteriorly to form the zygomatic arch; which forms the cheekbone. FACIAL BONES AND MARKINGS: 8. _______________________________ - The lower jaw. k. ____________________________ - Allows blood vessels and nerves to pass from inside jaw to the outside (to lower lip skin and muscle). l. ____________________________ - Important condyle on posterior area of mandible that articulates with the zygomatic process. 9. _______________________________ - These bones form middle and major part of face; including the upper jaw, part of eye socket, and nasal cavity walls. m. ____________________________ - These form anterior hard palate; are part of this bone; there are 2 10. _______________________________ - These form the cheek bones, plus part of eye socket (orbit). 11. ________________________________ - Is the bridge of the nose. 12. ________________________________ - Forms medial eye orbit wall. Is just beneath the tear gland and duct. 13. ________________________________ - Is only bone in human that is not attached to another bone. Is suspended in mid-neck region about 2 cm above larynx; is attached to temporal bones by ligaments. Muscles attach here that help swallowing and speech. Is behind larynx.
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