Skeletal Tissues

1. Intramenbranous ossification begins with formation of:

• osteoid

• bone trabeculae

• periosteum

• osteogenic island

• bone lamellae

Within matrix of elastic cartilage we can distinguish

• proteoglycans

• collagen fibers
  

• elastic fibers

• blood capillaries

• water

3. Interstitial lamellae of compact bone are:

• material for inner and outer circumferencial lamellae formation

• material for Haversian systems formation

• structural components of newly-formed Haversian systems

• remnants of partly resorbed Haversian systems

• concentric lamellae

4. Choose the osteoclast's precursor:

• osteoblast

• chondroblast

• osteocyte

• monocyte

• lymphocite

5. Compact bone. Choose the correct answers:

• forms the compact and spongy substance of skeletal bones

• collagen fibers are formed by collagen type III

• forms scull bones suturesforms scull bones sutures

• collagen fibers are regular within the bone lamella

• Haversian systems' canals contain blood vessels