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Across 2. A sharp, slender, often pointed projection 3. A round or oval opening through a bone which allows the passage of a vessel or nerve through OR between bones 7. A narrow cleft, deep groove or 9. The raised area on or above the condyle 10. A smooth, shallow, or flat articular surface 11. A shallow basin-like depression in bone, often serving as an articular surface 12. An indentation at the edge of a structure or bone 15. A small, rounded process 16. A line of junction, also referred to as a joint for the meeting of two flat bones 18. A narrow ridge of bone; less prominent than a crest 19. Another name for groove or furrow in the bone, it accommodates a sft structure such as a blood vessel, nerve or tendon.

Down 1. A relatively large, convex, articular prominence which often articulates with a corresponding fossa 2. An air space within certain skull bones which connect into nasal passageways. These cavities are lined with mucous membrane. 4. A very large, blunt, irregulary shaped process 5. A large, rounded projection; may have a roughened surface 6. A canal like passage within a bone 8. Encloses & protects the brain. Is the attachment site for some head & neck muscles 13. A broad term for any prominent projection of a bone 14. An expansion carried on a narrow neck. May serve as attachment points for tendons, ligaments, or other connective tissues. 16. The bones which make up the cranial & facial pieces 17. A narrow ridge of gone; usually prominent or having a prominent border