lab 7

15. forms the most inferior turbinate

15. inferior nasal concha

16. site of mental foramen

16. mandible

First, match the bone names in column B with the descriptions in column A (the items in column B may be used more than once). Then, circle the bones in column B that are cranial bones. 1. forms the anterior cranium

1. frontal

10. site of mastoid process

10. temporal

11. has condyles that articulate with the atlas

11. occipital

12. small U-shaped bone in neck, where many tongue muscles attach

12. hyoid

13. organ of hearing found here

13. temporal

14. two bones that form the nasal septum

14. vomer and ethmoid

2. cheekbone

2. zygomatic

3. bridge of nose

3. nasal

4. posterior bones of the hard palate

4. palatine

5. much of the lateral and superior cranium

5. parietal

6. single, irregular, bat-shaped bone forming part of the cranial base

6. sphenoid

7. tiny bones bearing tear ducts

7. lacrimal

Define suture.

Fibrous joint between skull bones.

With one exception, the skull bones are joined by sutures. Name the exception.

Joints between the mandible and temporal bones.

What bones are connected by the lambdoid suture? Occipital and parietal

What bones are connected by the squamous suture? Temporal and parietal

Name the eight bones of the cranium. Remember to include left and right.

frontal occipital sphenoid ethmoid left parietal right parietal left temporal right temporal

List the bones that have sinuses, and give two possible functions of the sinuses.

frontal, maxilla, ethmoid, sphenoid. 1. to lighten the skull, and 2. to resonance chambers for speech

8. anterior part of hard palate

8. maxilla

9. superior and middle nasal conchae form from its projections

9. ethmoid