Unit 2, Concept 1 Skeletal Test

Question 1

1. The arrangement of bone tissue shown in Figure below is formed by: ( picture shows bone with the tissue surrounding it in a circle )

Answer 1

A. Osteons

Reference: Skeletal Notes, Bone Cells

Question 2

4. The ____ girdle provides more flexibility and motility than the _____ girdle. The _____ girdle is the sturdiest of the two.

Answer 2

D. pectoral; pelvic; pelvic

Reference: Discovery Stations: Skeletal System

Question 3

5. Cords of dense connective tissue that connect muscles to bone are called

Answer 3

D. tendons

Reference: Skeletal notes, Overview

Question 4

8. The membrane that lines the medullary canal is the ______.

Answer 4

B. endosteum

Reference: Research and Report: The Anatomy of a Long Bone

Question 5

16. The sternum is the result of fusion of three bones called the:

Answer 5

C. manubrium, body, xiphoid process

Reference: BBD

Question 6

17. The atlas is the:

Answer 6

E. first cervical vertebrae

Reference: BBD

Question 7

31. Explain why people who experience paralysis in their lower limbs have thinner, weaker bones in their legs and thighs.

Answer 7

Because bone remodeling is stimulated when the osteocytes receive signals, such as stress/force being put on the bones, to rebuild the bones. If these stimuli are not sent than bone will not be regenerated and strengthened.
Reference: Skeletal Notes, Bone remodeling

Question 8

32. Label the spongy bone and compact bone in the picture on your answer sheet. Then describe, in detail, one structure unique to compact bone and one structure unique to spongy bone.

Answer 8

Compact bone is composed of osteons which are like tiny weight-bearing pillars in the bone that have a central canal running through the middle that contains small blood vessels and nerve fibers. Spongy bone doesn’t have osteons but does have trabeculae which are like tiny bone struts where the bone marrow is that also help the bone resist stress.
The compact bone lines the spongy
bone.
Reference: Structure of a compact bone, structure of a spongy bone

Question 9

39. The last five pairs of ribs are called false ribs because they have no direct attachment to the thoracic vertebrae.

Answer 9

False

Reference: BBD

Question 10

40. There are 28 phalanges in the human body.

Answer 10

False

Reference: Skeletal Notes, Overview

Question 11

42. The top portion of the bone

Answer 11

Proximal Epiphysis

Reference: Research and Report: The Anatomy of a Long Bone

Question 12

44. The bottom portion of the bone

Answer 12

Distal Epiphysis

Reference: Research and Report: The Anatomy of a Long Bone

Question 13

48. The bone at on the top of your head towards the back.

Answer 13

Parietal Bone

Reference: BBD

Question 14

54. The ankle bone

Answer 14

Talus

Reference: BBD