Skeletal review - AN version

Mature bone cells are called

• osteocytes
• osteoclasts
• chondrocytes
• osteoblasts

The axial skeleton is comprised of

• pelvis, femur, and humerus
• skull, clavicle, and scapula
• sternum, radius, and ulna
• skull, vertebral column, and rib cage

What is the appendicular skeleton?

• the central part of the skeleton that protects vital organs.

• consists only of the skull and vertebral column.

• bones in the spine and rib cage.

• the bones of the appendage/limbs

The structure of bones

• They are made of keratin and elastin

• They contain living cells and protein fibers

• They are surrounded by calcium and phosphorous salts

• The do not contain blood vessels

The outer layer of connective tissue that surrounds bones is called

• epimysium
• endosteum
• fascia
• periosteum

Compact bone is ________ and contains tubes called _______

• Dense

• Spongy

• Haversian canals

• microtubules

Tubes that contain blood vessels and nerves and run the length of compact bones are called

• Haversian canals
• Volkmann's canals
• Medullary cavities
• Osteons

Spongy bone is found

• at the ends of long bones and in the interior of short, flat bones

• on the surface of bones
• in the center of all bones
• only in flat bones

This type of bone cradles and protects bone marrow

• Spongy bone
• Fibrous bone
• Cartilage
• Compact bone

Which structure in this image is the osteon?

• A

• B

• C

• D

Tags

NGSS.HS-LS1-2