Unit 2 Concept 1 Skeletal Test

Question 1

2. Cords of dense connective tissue that connects muscles to bone are called

Answer 1

C, tendons

Question 2

4. Which of the following leg bones doesn’t actually bear any weight but instead aids in stabilizing the ankle joint?

Answer 2

B, fibula

Question 3

5. The _______ girdle provides more flexibility and motility than the ______ girdle. The _________ girdle is the sturdiest of the two.

Answer 3

D; pectoral, pelvic, pelvic

Question 4

7. The shaft of long bones is the ________

Answer 4

D, medullary canal

Question 5

12. The most important minerals stored in bones are:

Answer 5

B, calcium and phosphorus

Question 6

15. The canal that runs through the core of each osteon contains:

Answer 6

D, blood vessels and nerve fibers

Question 7

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

Answer 7

C, manubrios, body, xiphoid process

Question 8

19. These are four stages in the healing of a bone fracture. Which of the following best illustrates the sequence of these stages:

Answer 8

B; 4,3,1,2

Question 9

23. A bone that has approximately the same width, length, and height

Answer 9

B, short bone

Question 10

24. The bones in your wrist

Answer 10

C, flat bone

Question 11

26. List four of the six overall functions of the skeletal system we discussed in class.

Answer 11

a. Support/ framework for the body
b. Protect/guard organs
c. Aid in movement
d. Storage of minerals and energy, blood cell formation, hormone production

Question 12

28. On the figure on your answer sheet, label the bones indicated by the lines. Picture of an arm top to bottom

Answer 12

Clavicle, scapula, humerus, ulna, radius, carpal, metacarpals, phalanges

Question 13

29. Place the following steps of the bone remodeling process in the correct order.

Answer 13

D - Osteocytes release chemical signals to send osteoclasts to the damage , A - Osteoclasts return calcium and phosphate to the blood through resorption, B - Macrophages promote bone tissue remodeling, C - Osteoblasts come in and build new bone.

Question 14

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

Answer 14

Because bone remodeling is stimulated when the osteocytes recieved signals, such as stress/force being out on the bones, to rebuild the bone. If these stimuli are not sent than bone will not be regenerated and strengthened

Question 15

31. Label the spongy bone and compact 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 15

Compact bone is compact 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 ostens but does have trabeculae which are like tiny bone struts where the bone marrow is that also help the bone resist stress. Also the spongy bone is one the left part of the bone and compact on the right of the picture.

Question 16

36. The maxilla is the lower jawbone (true or false)

Answer 16

True

Question 17

45. Label the bones of the skeletal system picture of regular bone

Answer 17

Articular cartilage

Question 18

46. Label the bones of the skeletal system picture of regular bone

Answer 18

Periosteum

Question 19

47. Label the bones of the skeletal system picture of regular bone

Answer 19

Medullary cavity

Question 20

48. Label the bones of the skeletal system picture of a skeleton

Answer 20

Frontal

Question 21

53. Label the bones of the skeletal system picture of a skeleton

Answer 21

Tibia

Question 22

54. Label the bones of the skeletal system picture of a skeleton

Answer 22

Tarsals

Question 23

60. Label the bones of the skeletal system picture of a skeleton

Answer 23

Talus

Question 24

55. Label the bones of the skeletal system picture of a skeleton

Answer 24

Parietal