Anatomical Features Of A Long Bone

Question 1

Epiphysis

Answer 1

• bone ends
• mainly comprised of cancellous bone
• house much of the red marrow
• involved in red blood cell production
• primary site of bone growth, vulnerable to breakage.

Question 2

Diaphysis

Answer 2

• shaft portion of the long bone
• predominantly compact bone
• hollow inside
• principal role is to support

Question 3

Epiphyseal line (plates)

Answer 3

• connect the diaphysis to the epiphysis
• layer of subdividing cartilaginous cells where growth occurs
• cartilaginous cells multiply here
• cartilaginous cells move towards the diaphysis becoming more calcifies as they go - process of bone formation

Question 4

Articular (hyaline) cartilage

Answer 4

• ends of articulating bones are cover with articulations cartilage
• hard, white, shiny tissue helps reduce friction in freely moveable joints