Biology 241 – Lecture
Chapter 7 (Skeletal System: The Axial Skeleton)
Practice Quiz
I. Circle T (True) or F (False). If the statement is false, cross out the word(s) that make it false and
write in an appropriate correction so that the statement now becomes a true statement.
T F 1. Regions of the vertebral column that consist of fused vertebrae are the lumbar and sacral regions.
T F 2. The atlanto-occipital joint allows you to rotate the head, as in signifying “no”.
T F 3. Ribs that are not attached to the sternum are known as the true ribs.
T F 4. The vomer, sphenoid, and ethmoid bones are the only skull bone that are unpaired.
T F 5. The primary and secondary curvatures of the vertebral column give it added stability and flexibility.
T F 6. Foramina and fissures can be openings in bone for passage of blood vessels, nerves, or ligaments.
T F 7. The “crescent of foramina” is the collective name for a group of landmarks within the ethmoid bone.
T F 8. The clavicle is really composed of three fused bones: manubrium, gladiolus, and xiphoid.
II. Circle the letter preceding the one best answer to each question:
9. An abnormally convex curvature of the vertebral column in the lumbar region is referred to as:
A. scoliosis.
B. osteoporosis.
C. lumbago.
D. lordosis.
E. kyphosis.
10. The squamosal suture is found between:
A. a temporal + a zygomatic bone B. R + L parietal bones C. the one frontal + two parietal bones
D. the one occipital + two parietal bones
E. a temporal + a parietal bone
III. Using the blanks provided, fill-in the word or phrase that best fits the description given:
__________, __________ 11. This is the term for a “bony-enclosed space”; and these are the skull bones
__________, __________, and ___________.
that have one or more of them.
______________________ 12. This is another name for an “intrasutural bone”.
___________,___________13. These are the six bones that contribute to the boney orbit.
___________, __________, ______________, and ______________.
_______________________14. This is the prominent “channel-like” landmark on the inferomedial surface of a rib.
_______________________15. These are two features that ONLY the seven cervical vertebrae possess:
______________________________________
_______________________16. This is the one bone of the body that does not articulate with any other.