Skeletal system

What makes up your skeletal system?

• muscles

• Bones, ligaments, and cartilage

• skull

• blood

Bones are hard organs made of minerals and .......................

..........................bone is dense and does not have any visible open spaces. it makes bones rigid and hard

The tough, flexible strand of connective tissue that holds bones together is

• compact bone

• collagen

• a ligament

• joint

The connective tissue in bone is made mostly of a protein called

is a strong, flexible, and smooth connective tissue found at the end of bones. It allows bones to move smoothly across each other

• marrow

• Cartilage

• spongy bone

• calcium

Ball and Socket joints are

• Shoulders and hips

• Wrists and ankles

• Knees and elbows

• neck

Wrists and ankles are gliding joints. Gliding joints allow a great deal of flexibility in many directions.

• ball and socket

• doorlike

• gliding

• hinge

.................joints work like door hinges, allowing bones to move back and forth.