Anatomy Unit 3 Ch 7 Skeletal System Test

Fill in the blank: Bones of the cranium, vertebral column, ribs, and sternum are called _____.

• axial skeleton

• appendicular skeleton

• cartilaginous skeleton

• exoskeleton

Fill in the blank: Wrist bones are called _____.

• carpals

• tarsals

• metacarpals

• phalanges

Fill in the blank: Cell that breaks down bone tissue is called _____.

• osteoclast

• osteoblast

• chondrocyte

• erythrocyte

Fill in the blank: Rounded, bony process is called _____.

• condyle

• fossa

• spine

• foramen

Fill in the blank: Bone that forms within a sheetlike masses of connective tissue is called _____.

• intramembranous bone

• endochondral bone

• compact bone

• spongy bone

Which type of bone consists of numerous branching bony plates called trabeculae?

• Spongy bone

• Compact bone

• Long bone

• Irregular bone

What is the main difference between spongy bone and compact bone?

• Spongy bone consists of branching bony plates and is found in the epiphyses, while compact bone is dense and forms the diaphysis.

• Spongy bone is only found in the skull, while compact bone is only found in the limbs.

• Spongy bone contains more blood vessels than compact bone and is found in the marrow cavity.

• Spongy bone is denser than compact bone and forms the outer layer of all bones.

The microscopic structure of compact bone is characterized by which of the following?

• Osteons (Haversian systems) with concentric lamellae surrounding central canals

• Trabeculae arranged in a lattice-like network

• Large open spaces filled with red bone marrow

• Cartilage cells embedded in a gel-like matrix

Which cells are responsible for forming bone tissue during intramembranous ossification?

• Osteoblasts

• Chondrocytes

• Fibroblasts

• Adipocytes

Osteoclasts and osteoblasts remodel bone by:

• breaking down and building up bone tissue

• producing red blood cells

• transporting oxygen in the blood

• regulating nerve impulses