Skeletal System Practice Quiz

Which term refers to interlocking immovable joints in the skull?

• Sutures

• Ligaments

• Cartilage

• Trabeculae

• Lamellae

What is the basic structural unit of compact bone that acts as tiny weight‑bearing pillars?

• Lacunae

• Osteon

• Central canal

• Trabeculae

• Lamellae

Which structure runs through the middle of each osteon and contains small blood vessels and nerve fibers?

• Canaliculi

• Lamellae

• Central canal (Haversian canal)

• Lacunae

• Periosteum

Groups of hollow tubes filled with tiny salts and collagen fibers that help bone resist torsion stress are called what?

• Lamellae

• Lacunae

• Trabeculae

• Osteons

• Canaliculi

Tiny bone struts in spongy bone that help it resist stress and house bone marrow are known as which of the following?

• Lamellae

• Trabeculae

• Osteocytes

• Sutures

• Sesamoid bones

Which bone cell builds and constructs bone by calcifying it as it forms?

• Osteoclast

• Osteoblast

• Osteocyte

• Chondrocyte

• Erythrocyte

Ossification refers to which process?

• Break in a bone

• Bone tissue formation (osteogenesis)

• Removal of calcium from blood

• Formation of synovial fluid

• Fusion of skull sutures

A special type of short bone, shaped like a sesame seed and embedded within tendons to provide support and stability with little movement, is called what?

• Flat bone

• Irregular bone

• Sesamoid bone

• Long bone

• Trabecular bone

Which statement best describes bone according to the lesson focus?

• Bone is a nonliving support rod that never changes.

• Bone is a living organ that grows, repairs, and supports the body.

• Bone is only made of calcium salts and has no cells.

• Bone is cartilage that hardens only during old age.

Tags

NGSS.HS-LS1-4

What is the primary overall function of the axial skeleton?

• Producing blood cells for immunity

• Providing movement for the limbs

• Protecting critical organs and providing support

• Storing minerals for muscle contraction