Biology 241 – Lecture
Chapter 6 (Skeletal System: Osseous C.T.)
Practice Quiz
I. Circle the letter preceding the one best answer to each question.
1. Choose the one FALSE statement:
A. Osteoclasts are bone-matrix-destroying cells.
B. In a long bone, the primary ossification center is located in the diaphysis; whereas the secondary center
of ossification is in each epiphysis.
C. Canaliculi are tiny canals containing blood vessels that nourish bone cells in lacunae.
D. Another name for the hip bones are the os coxae.
2. Choose the one FALSE statement:
A.Vitamins necessary to maximize normal bone calcification are: A, the B-complex, C, D and K.
B. Hormones necessary for normal bone calicification are: IGF’s, hGH, thyroxine, and the sex hormones.
C. Minerals necessary for normal bone calcification are (in large amounts): calcium, phosphorus, + carbonate.
D. Exercise, weight-bearing, and other stresses applied to bones are not necessary for normal bone growth.
E. The term “remodeling” refers to the normal process of new osseous C.T. replacing old osseous C.T.
3. All of the following are steps in fracture repair except:
A. Fibrocartilaginous callus B. Hematoma
C. Bony callus
D. Scar tissue
E. Remodeling
4. For bones to unite properly, the fractured ends must be brought into alignment, a process called:
A. Union
B. Closure
C. Anastomosis
D. Suturing
E. Reduction
5. A Colles’ fracture involves the distal:
A. Radius only
B. Radius + Ulna
C. Carpals
D. Radius + carpals
E. Ulna and carpals
II. Arrange the answers in their correct sequence:
_____, _____, _____ 6. From superior to inferior: A. Atlas B. Axis
C. Occipital bone
_____, _____, _____ 7. According to size, from largest to smallest: A. Femur B. Ulna C. Humerus
_____, _____, _____ 8. From proximal to distal: A. Phalanges B. Metacarpals C. Carpals
_____, _____, _____ 9. From most superficial to deepest: A. Endosteum B. Periosteum C. Compact bone
_____, _____, _____10. From anterior to posterior: A. Ethmoid bone B. Sphenoid bone C. Occipital bone
III. Using the blanks provided, fill-in the word or phrase that best fits the description given:
_______________________11. This is the term used to refer to the shaft of a long bone.
_______________________12. Characterized by weakened bone mass, this is a disorder primarily of older
women associated with decreased estrogen level after menopause.
_______________________13. This is the connective tissue covering over most cartilage masses in adults and
also over the embryonic cartilaginous skeleton.
_______________________14. The majority of bones formed by intramembranous ossification are located here.
(A brief explanation needed here) 15. The sternum is most often used for a marrow biopsy site because: