Download Unit 3 Review Fall 2015

UNIT 3 A 2401 Exam
1. Which 2 essential chemicals do bones store? (pick both) Ca+2 PO4–
2. Long bones grow in length at the : epiphyseal plate
3. Growth of the diameter of a bone is called ___________ growth and occurs at
the __________. appositional; periosteum
4. Vertebrae are examples of : irregular bones
5. The periosteum consists of : all of the above
6. These bones form by intramembranous ossification? flat bones.
7. Which of the following bone cells is a precursor to the others. osteoprogenitor
cells
8. Which of the following bone cells remodels bones when broken? osteoclasts
9. During skeletal development, most bone formation comes from : ossification
of hyaline cartilage
10.Which of these cells secretes osteoid ? osteoblasts
MATCHING Osteon Drawing
11. canaliculi.
12. lamellae
13. central canal
14. osteon
15. Vitamin D is critical for bone growth and health because: it stimulates the
uptake of Ca+2 and phosphate from food.
16. Hemopoesis is : blood cell formation
17. Which hormone below causes the DECREASE in blood Ca+2 levels? calcitonin
18. The “spongy bone” matrix is made of structures called: trabeculae
19. Flat bones of the skull lack : medullar cavity
20. Vitamin C is critical for bone growth and health because: it stimulates the
production of collagen for osteoid.
21. Tendons and ligaments attach to which bone structure? periosteum
22. The most moveable (flexible) joints of the body are : diarthroses.
23. Sutures are examples of : fibrous synarthroses of the skull
24. The tough sack near a synovial joint that prevents bones and ligaments from
rubbing together is : a bursae.
25. The chondrocytes in hyaline cartilage on the ends of long bones (joints) are
nourished by : synovial fluid
26. The elbow and knee are examples of _______ joints: __ hinge__
CHAPTER 10:
MATCHING Myofilaments: see figure in text or slides
27. tropomyosin
28. troponin
29. actin
30. actin binding site on myosin head
MATCHING Sarcomere: see figure in text or slides
31. Z disc
32. myosin
33. M line
34. A band
35. sarcomere
36. An AP into the T-tubules causes the release of ____ from the ___. Ca+2;
sarcoplasmic reticulum
37. As muscle contraction occurs, the ____________ get shorter. H zone.
38. The Ca+2 binding sites in a sarcomere are on which molecule : troponin.
39. The movement of the troponin-tropomyosin complex allows ______ to bind to
_________ . myosin; actin.
40. In order for the 2 muscle filaments slide during the power stroke, which
molecule is directly required? ATP
41. The source of MOST of the above molecule comes from : aerobic respiration
42. T-Tubules are invaginations of the: sarcolemma
43. Which structure is only found in cardiac muscle tissue? intercalated discs
44. Which structure is only found in smooth muscle tissue? dense bodies
45. Because of its different structure and the mechanisms, smooth muscle
contraction is _________ than skeletal muscle contraction. slower and longer
46. This provides energy for muscle contraction for a short duration of time.
phosphagen system
47. Bundles of muscle fibers are called ___________ . fascicle
48. Smooth muscle is _________ muscle, and _____ striations. involuntary; lacks
49. What structure does a contracted sarcomere lack? H zone or I band
50. What connective tissue wraps a muscle fascicle? perimysium
BONUS
51. What connective tissue layer contains blood vessels and nerves?
perimysium
52. What purpose do satellite cells serve? replace damaged muscle cells.
53. What protein bound to the myosin helps a sarcomere relax once Ca+2 is
pumped out of the sarcoplasm? connectin
54. What does cartilage lack that bone tissue has? blood vessels or calcium
55. What do you call the bone matrix between osteons? interstitial lamellae
56. Where do you find cancellous bone in a long bone? in the proximal & distal
epiphysis and the endosteum
VOCABULARY will only be over the LAST SECTION CHAPTERS and is NOT
COMPREHENSIVE.
UNIT 3 B 2401 Exam
All the questions were the same EXCEPT:
MATCHING Osteon Drawing
11. osteon.
12. central canal
13. osteocyte
14. lacunae
22. The Least moveable (flexible) joints of the body are : synarthroses.
23. Gomphoses are examples of : fibrous synarthroses of the teeth
26. The hip and shoulder are examples of _______ joints: ball in socket
CHAPTER 10:
MATCHING Myofilaments: see figure in text or slides
27. Ca binding site
28. tropomyosin
29. actin
30. myosin
MATCHING Sarcomere: see figure in text or slides
31. connectin
32. M line
33. I band
34. H zone
35. sarcomere
41. The INITIAL source of the above molecule comes from : phosphagen system
43 and 44 are reversed. same questions - different place.
46. This provides energy for muscle contraction for a long duration of time.
aerobic respiration
50. What connective tissue wraps a whole muscle? epimysium
55. What do you call the bone matrix around the on the edges of a bone?
circumferential lamellae