APHY 101 FINAL EXAM QUESTIONS &
ANSWERS GRADED A+
1. Epiphysis - correct answer ✔✔ expanded end of a long bone
2. Medullary Cavity - correct answer ✔✔ Semi-rigid tube with a hollow
chamber that runs through the diaphysis
3. Periosteum - correct answer ✔✔ Functions to form and repair bone tissue
4. Compact Bone - correct answer ✔✔ Bony matrix tightly packed together
5. Spongy Bone - correct answer ✔✔ Composed of trabeculae and cancellous
material
6. Osteoblasts - correct answer ✔✔ Bone-forming cells that deposit bone
matrix around themselves
7. Osteoclasts - correct answer ✔✔ Cells that break down bone matrix to
release calcium
8. Homeostasis - correct answer ✔✔ Maintenance of a stable internal
environment
9. Negative Feedback - correct answer ✔✔ Mechanism where the response
opposes the initial stimulus (e.g., temperature regulation)
10.Positive Feedback - correct answer ✔✔ Mechanism where the response
enhances the initial stimulus (e.g., childbirth)
11.Mitochondria - correct answer ✔✔ Organelle responsible for ATP
production; the "powerhouse"
12.Ribosomes - correct answer ✔✔ Site of protein synthesis in the cell
ANSWERS GRADED A+
1. Epiphysis - correct answer ✔✔ expanded end of a long bone
2. Medullary Cavity - correct answer ✔✔ Semi-rigid tube with a hollow
chamber that runs through the diaphysis
3. Periosteum - correct answer ✔✔ Functions to form and repair bone tissue
4. Compact Bone - correct answer ✔✔ Bony matrix tightly packed together
5. Spongy Bone - correct answer ✔✔ Composed of trabeculae and cancellous
material
6. Osteoblasts - correct answer ✔✔ Bone-forming cells that deposit bone
matrix around themselves
7. Osteoclasts - correct answer ✔✔ Cells that break down bone matrix to
release calcium
8. Homeostasis - correct answer ✔✔ Maintenance of a stable internal
environment
9. Negative Feedback - correct answer ✔✔ Mechanism where the response
opposes the initial stimulus (e.g., temperature regulation)
10.Positive Feedback - correct answer ✔✔ Mechanism where the response
enhances the initial stimulus (e.g., childbirth)
11.Mitochondria - correct answer ✔✔ Organelle responsible for ATP
production; the "powerhouse"
12.Ribosomes - correct answer ✔✔ Site of protein synthesis in the cell
