Skeletal System Review
Supplemental Instruction
Iowa State University / Leader: / Victoria Hegstrom
Course: / AnS 214
Instructor: / Dr. Koltes
Date: / 2/2/18
  1. Which type of bone cell is INCORRECTLY matched?
  2. Osteogenic cell—stem cell that can become osteoblast or bone lining cell
  3. Osteoblast—matrix synthesizing cell responsible for bone growth
  4. Osteocyte—mature bone cell that maintains the bone matrix
  5. Osteoclast—bone lining cell on surface of bone
  1. Ossification, also known as osteogenesis, is the process of what?
  2. Process of bone hardening with age
  3. Process of bone growth and formation
  4. Process of bone deterioration
  5. Process of bone gaining tensile strength
  1. Which is the correct order of bone formation throughout life?
  2. Bony/soft skeletonàBone growthàremodeling/repairàappositional bone growth
  3. Bone growthàbony/soft skeletonàappositional bone growthàremodeling/repair
  4. Bony/soft skeletonàappositional bone growthàbone growthàremodeling/repair
  5. Remodeling/repairàbone growthàbone/soft skeletonàappositional bone growth
  1. What is the functional unit of bone?
  2. Osteoblast
  3. Osteon
  4. Ossification
  5. Central Canals
  1. Intramembranous ossification describes what development?
  2. Bone replacing hyaline cartilage
  3. Bone replacing fibrocartilage
  4. Bone develops from a fibrous membrane
  5. None of the above
  1. Endochondral Ossification replaces hyaline cartilage everywhere EXCEPT:
  2. Long bone
  3. Irregular Bone
  4. Short Bone
  5. Flat Bone
  1. Growth of bone occurs in what direction?
  2. Width—left to right
  3. Length—downward
  4. Width—right to left
  5. Length—upward
  1. Which hormone regulation of bone is INCORRECTLY matched?
  2. Parathyroid hormone—stimulates degradation of bone by osteoclast
  3. Calcitonin—inhibits degradation of bone by osteoclasts
  4. Growth Hormone—stimulates chondrocyte division
  5. None of the above
  1. As discussed in class, what describes why astronauts have bone degradation while in space?
  2. Response to mechanical stress of lack of gravity
  3. Response to mechanical stress of lack of muscle pull
  4. Response to lack of exercise
  5. None of the above are responsible
  1. Wolff’s Law describes what?
  2. Hormones regulate bone growth and degradation
  3. Bone grows or remodels in response to the demands placed on it
  4. Ossification occurs based on multiple factors
  5. Bone grows or remodels in response to mechanical stress and hormones

IMPORTANT TERMS

·  Hyaline Cartilage

·  Elastic Cartilage

·  Fibrocartilage

·  Axial Skeleton

·  Appendicular Skeleton

·  Long Bone

·  Short Bone

·  Flat Bone

·  Irregular Bone

·  Compact Bone

·  Spongy Bone

·  Organic Components

·  Inorganic Components

·  Osteon

·  Osteogenic cell

·  Osteoblast

·  Osteocyte

·  Osteoblast

·  Bone lining cells

·  Ossification/ Osteogenesis

·  Endochondral Ossification

·  Intramembranous Ossification

·  Proliferation Zone

·  Hypertrophic Zone

·  Calcification Zone

·  Ossification Zone

·  Wolff’s Law

ANSWER KEY

1.  D

2.  B

3.  A

4.  B

5.  C

6.  D

7.  D

8.  D

9.  A

10.  B