Understanding Bone Structure

What is the function of articular cartilage?

• To protect the ends of bones from friction and shock

• To cover the outside of a long bone

• To fill the medullary cavity

• To produce red blood cells

Where is red marrow found?

• Inside the nutrient foramen

• Inside the medullary cavity

• In the epiphyses of long bones

• Within the periosteum

What is the periosteum?

• A growth plate

• A membrane of connective tissue covering a long bone

• A type of bone marrow

• A type of cartilage

What is the primary difference between spongy and compact bone?

• Spongy bone is vascular, while compact bone is not

• Spongy bone has microscopic spaces, while compact bone has very few spaces

• Compact bone produces blood cells, while spongy bone does not

• Compact bone is found only in the epiphyses, while spongy bone makes up the shaft

At what age do the epiphyseal plates typically ossify permanently?

• 10 to 15

• 18 to 25

• 40 to 45

• 30 to 35

What fills the medullary cavity?

• Red marrow

• Yellow marrow

• Periosteum

• Articular cartilage

What is the main component of the diaphysis of a bone?

• Connective tissue

• Spongy bone

• Hyaline cartilage

• Compact bone

What is the purpose of the nutrient foramen in long bones?

• To connect the epiphyses to the diaphysis

• To facilitate the exchange of blood and nutrients

• To provide a space for the medullary cavity

• To allow for the growth in width of the bone