BIOS 242 Week 3 Quiz Exam 4 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the main functional unit of compact bone?
A. Osteon
B. Trabecula
C. Haversian canal
D. Lacuna
Correct Answer: A
Rationale:Osteons (Haversian systems) are cylindrical structures
that provide strength to compact bone.
2. Which structure contains blood vessels and nerves in an
osteon?
A. Haversian canal
B. Lamella
C. Lacuna
D. Canaliculus
Correct Answer: A
Rationale:Central canal in osteons houses blood vessels and nerves.
,3. What connects osteocytes in lacunae?
A. Canaliculi
B. Lamellae
C. Trabeculae
D. Osteons
Correct Answer: A
Rationale:Tiny channels allow nutrient and waste exchange
between osteocytes.
4. Which type of lamella surrounds the entire bone?
A. Circumferential lamellae
B. Concentric lamellae
C. Interstitial lamellae
D. Perforating lamellae
Correct Answer: A
Rationale:Encircles the bone beneath the periosteum.
5. Which type of lamella fills gaps between osteons?
A. Interstitial lamellae
B. Concentric lamellae
C. Circumferential lamellae
D. Perforating lamellae
Correct Answer: A
Rationale:Remnants of old osteons that maintain bone strength.
,6. Which type of lamella connects osteons to the periosteum?
A. Perforating (Volkmann’s) lamellae
B. Concentric lamellae
C. Interstitial lamellae
D. Circumferential lamellae
Correct Answer: A
Rationale:Volkmann’s canals carry vessels perpendicular to
osteons.
7. What is the site of bone growth in length?
A. Epiphyseal plate
B. Epiphysis
C. Diaphysis
D. Metaphysis
Correct Answer: A
Rationale:Cartilage plate allows long bones to lengthen during
development.
8. Which process increases bone width?
A. Appositional growth
B. Interstitial growth
C. Endochondral ossification
D. Intramembranous ossification
Correct Answer: A
Rationale:Osteoblasts in periosteum add layers to outer surface.
, 9. Which type of ossification forms flat bones of the skull?
A. Intramembranous
B. Endochondral
C. Appositional
D. Interstitial
Correct Answer: A
Rationale:Direct differentiation of mesenchyme into bone without
cartilage.
10. Which type of ossification forms most long bones?
A. Endochondral
B. Intramembranous
C. Appositional
D. Interstitial
Correct Answer: A
Rationale:Bone replaces a cartilage model during fetal
development.
11. Which zone of the epiphyseal plate is closest to the epiphysis?
A. Zone of resting cartilage
B. Zone of hypertrophy
C. Zone of proliferation
D. Zone of calcification
Correct Answer: A
Rationale:Contains inactive chondrocytes that anchor the plate.
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the main functional unit of compact bone?
A. Osteon
B. Trabecula
C. Haversian canal
D. Lacuna
Correct Answer: A
Rationale:Osteons (Haversian systems) are cylindrical structures
that provide strength to compact bone.
2. Which structure contains blood vessels and nerves in an
osteon?
A. Haversian canal
B. Lamella
C. Lacuna
D. Canaliculus
Correct Answer: A
Rationale:Central canal in osteons houses blood vessels and nerves.
,3. What connects osteocytes in lacunae?
A. Canaliculi
B. Lamellae
C. Trabeculae
D. Osteons
Correct Answer: A
Rationale:Tiny channels allow nutrient and waste exchange
between osteocytes.
4. Which type of lamella surrounds the entire bone?
A. Circumferential lamellae
B. Concentric lamellae
C. Interstitial lamellae
D. Perforating lamellae
Correct Answer: A
Rationale:Encircles the bone beneath the periosteum.
5. Which type of lamella fills gaps between osteons?
A. Interstitial lamellae
B. Concentric lamellae
C. Circumferential lamellae
D. Perforating lamellae
Correct Answer: A
Rationale:Remnants of old osteons that maintain bone strength.
,6. Which type of lamella connects osteons to the periosteum?
A. Perforating (Volkmann’s) lamellae
B. Concentric lamellae
C. Interstitial lamellae
D. Circumferential lamellae
Correct Answer: A
Rationale:Volkmann’s canals carry vessels perpendicular to
osteons.
7. What is the site of bone growth in length?
A. Epiphyseal plate
B. Epiphysis
C. Diaphysis
D. Metaphysis
Correct Answer: A
Rationale:Cartilage plate allows long bones to lengthen during
development.
8. Which process increases bone width?
A. Appositional growth
B. Interstitial growth
C. Endochondral ossification
D. Intramembranous ossification
Correct Answer: A
Rationale:Osteoblasts in periosteum add layers to outer surface.
, 9. Which type of ossification forms flat bones of the skull?
A. Intramembranous
B. Endochondral
C. Appositional
D. Interstitial
Correct Answer: A
Rationale:Direct differentiation of mesenchyme into bone without
cartilage.
10. Which type of ossification forms most long bones?
A. Endochondral
B. Intramembranous
C. Appositional
D. Interstitial
Correct Answer: A
Rationale:Bone replaces a cartilage model during fetal
development.
11. Which zone of the epiphyseal plate is closest to the epiphysis?
A. Zone of resting cartilage
B. Zone of hypertrophy
C. Zone of proliferation
D. Zone of calcification
Correct Answer: A
Rationale:Contains inactive chondrocytes that anchor the plate.
