Functions + Categories

Question 1

Axial Skeleton

Answer 1

• Consists 50 bones
• Includes Boney Framework of the head + tranc
• Acts as the body axis

Question 2

Appendicular Skeleton

Answer 2

• Consists 126 bones
• forms the framework
• For the extremities, limbs for the shoulders and hips
• Acts as body’s appendages

Question 3

What Are The 5 Functions of The Skeletal System

Answer 3

• Serves as a frame for the body
• Protects organs
• Serves as a lever for movement
• Forms blood cells
• Stores minerals

Question 4

What Are 4 Main Categories of Bones + Example

Answer 4

• Flat - Ribs, Cranium
• Short - Carpals of the writs, tarsals of the ankle
• Irregular - Vertebrae, facial bones
• Long - Most of the skeleton including bones of arms and legs

Question 5

Differences Between Compact + Spongy Bone

Answer 5

• Compact is hard and dense but Spongy bone is more spaced
• Compact makes up the main shaft of long bones + outer layers of other bones
• Spongy are found at the epiphysis (ends) of the long bones

Question 6

Osteoblast

Answer 6

• Essential in bone formation not only during growth
• Also in repair of injuries

Question 7

Osteoclast

Answer 7

• Degrade bone to initiate normal bone remodelling & mediate bone
• Aged bones resorption
• Broken bone or tissue

Question 8

Osteocyte

Answer 8

• Regulate local mineral deposition & chemistry
• At bone matrix level