GCU BIO 201 Lab Final Exam Review questions and answers
A+ Grade 2026\2027
Microscopic structure of bone osteon
- correct answer Structural unit of compact bone composed of concentric lamellae around a central
canal
Central canal
- correct answer Channel in osteon that contains blood vessels and nerves
Lacunae
- correct answer Small cavities in bone matrix that house osteocytes
Canaliculi
- correct answer Tiny channels connecting lacunae that allow nutrient and waste exchange
Osteocyte function
- correct answer Maintains bone tissue
Osteoblast function
- correct answer Builds new bone matrix
Osteoclast function
- correct answer Breaks down bone tissue for remodeling
Axial skeleton definition
- correct answer Bones forming the longitudinal axis of the body
Axial skeleton components
- correct answer Skull, vertebral column, thoracic cage
, Axial skeleton function
- correct answer Support and protection of brain spinal cord and thoracic organs
Appendicular skeleton definition
- correct answer Bones of the limbs and girdles
Appendicular skeleton components
- correct answer Upper limbs lower limbs pectoral girdle pelvic girdle
Appendicular skeleton function
- correct answer Movement and manipulation
Skull function
- correct answer Protects brain and supports facial structures
Vertebral column function
- correct answer Protects spinal cord and supports body weight
Thoracic cage function
- correct answer Protects heart and lungs and aids respiration
Bone function support
- correct answer Provides structural support for body
Bone function protection
- correct answer Protects vital organs
Bone function movement
- correct answer Acts as levers for muscles
Bone function storage
- correct answer Stores calcium and phosphorus
A+ Grade 2026\2027
Microscopic structure of bone osteon
- correct answer Structural unit of compact bone composed of concentric lamellae around a central
canal
Central canal
- correct answer Channel in osteon that contains blood vessels and nerves
Lacunae
- correct answer Small cavities in bone matrix that house osteocytes
Canaliculi
- correct answer Tiny channels connecting lacunae that allow nutrient and waste exchange
Osteocyte function
- correct answer Maintains bone tissue
Osteoblast function
- correct answer Builds new bone matrix
Osteoclast function
- correct answer Breaks down bone tissue for remodeling
Axial skeleton definition
- correct answer Bones forming the longitudinal axis of the body
Axial skeleton components
- correct answer Skull, vertebral column, thoracic cage
, Axial skeleton function
- correct answer Support and protection of brain spinal cord and thoracic organs
Appendicular skeleton definition
- correct answer Bones of the limbs and girdles
Appendicular skeleton components
- correct answer Upper limbs lower limbs pectoral girdle pelvic girdle
Appendicular skeleton function
- correct answer Movement and manipulation
Skull function
- correct answer Protects brain and supports facial structures
Vertebral column function
- correct answer Protects spinal cord and supports body weight
Thoracic cage function
- correct answer Protects heart and lungs and aids respiration
Bone function support
- correct answer Provides structural support for body
Bone function protection
- correct answer Protects vital organs
Bone function movement
- correct answer Acts as levers for muscles
Bone function storage
- correct answer Stores calcium and phosphorus
