Skin, Skeletal, and Muscular Systems: Bone and Cartilage

The video explains the human skeleton, consisting of 206 bones, and highlights that bones are living tissues containing nerves, cells, and blood vessels. It describes the structure of bones, including the periosteum, compact and spongy bone, and the role of osteoblasts and osteocytes. The video also covers bone marrow types and their functions, as well as the importance of cartilage in joints and the ossification process in infants.

What is the primary role of minerals like calcium and phosphorus in bones?

• To provide flexibility

• To give bones their hardness

• To make bones lighter

• To increase bone length

What is the function of the periosteum in bone structure?

• To store fat cells

• To produce red blood cells

• To make new bone for growth and repairs

• To connect bones at joints

Which type of bone tissue is characterized by being dense and providing support?

• Cartilage

• Compact bone

• Spongy bone

• Yellow marrow

What is the primary function of red marrow?

• To produce red blood cells and platelets

• To store fat cells

• To provide nutrients to bones

• To cushion bones at joints

What is the process called where cartilage is replaced by bone in infants?

• Calcification

• Ossification

• Mineralization

• Solidification