Bone Tissue: Structure and Function Explained

The video explains the structure and function of bone tissue, highlighting the differences between compact and spongy bone. Compact bone is characterized by osteons and a central haversian canal, while spongy bone features a lattice-like structure of trabeculae. The composition of bone matrix, including inorganic and organic materials, is discussed, along with the roles of osteocytes and canaliculi in nutrient delivery and communication.

What are the two main types of bone tissue?

• Compact and spongy bone

• Dense and loose bone

• Hard and soft bone

• Rigid and flexible bone

Which type of bone tissue surrounds the other?

• Spongy bone surrounds compact bone

• Compact bone surrounds spongy bone

• Both surround each other equally

• Neither surrounds the other

What is the central canal in an osteon called?

• Volkmann canal

• Haversian canal

• Lacuna

• Canaliculi

Which of the following is a component of the inorganic matrix in bone?

• Polysaccharides

• Collagen fibers

• Hydroxyapatite crystals

• Protein

Which of the following is NOT found in the organic material of bone matrix?

• Collagenous fibers

• Calcium carbonate

• Polysaccharides

• Protein

What is the role of canaliculi in bone tissue?

• To house blood vessels

• To connect lacunae and facilitate nutrient delivery

• To store calcium

• To form the outer layer of bone

What are the small spaces in bone tissue where osteocytes are found called?

• Lamellae

• Osteons

• Lacunae

• Canaliculi

What is the primary function of the periosteum?

• To connect central canals

• To line the inner spongy bone

• To house osteocytes

• To cover the outside of bones

What is the function of trabeculae in spongy bone?

• To store fat

• To provide a passageway for nerves

• To distribute stress throughout the bone

• To produce red blood cells

What is the appearance of spongy bone due to?

• Its smooth surface

• Its dense structure

• Its lattice-like trabeculae

• Its compact layers