Skeletal System Overview 2021

Which bone is composed of trabeculae?

• spongy

• cartilage

• compact

• articulate

What lines the medullary cavity and spaces of the spongy bone?

• Periosteum

• Epiphysis

• Intramembranous

• Endosteum

Bone cells are known as

• Lacunae

• Osteocytes

• Collagen

• Osteon

The skull bones, hyoid bone and vertebral column bones are found in which skeleton

• Axial Skeleton

• Appendicular Skeleton

How many bones are in the adult human body?

• 260

• 280

• 208

• 206

The broad ends of a long bone are the

• epiphyses

• diaphyses

• fibrous ends

• medullary cavities

While osteoblasts work to build new bone tissue, osteoclasts:

• cause the new bone to calcify

• break down old bone tissue

• live in the lacunae

• are just mature bone cells that don't recycle bone

The epiphyseal line

• is made up of elastic cartilage

• is in the osteogenic layer

• separates the red and yellow marrow

• is where the growth plate used to be

Structure #1 is the 

• osteon
• lamellae
• lacunae
• periosteum

Structure #2 is the 

• medullary cavity
• periosteum
• epiphysis
• diaphysis