The Skeletal System - Upper Body

Mandible

• lower jaw bone
• an irregular bone
• also known as the chin

Clavicle

• a long bone
• more commonly known as the collar bone
• commonly broken when Falling On an Out-Stretched Hand (FOOSH injury)

Sternum

• a flat bone
• main function is to connect all the ribs and protect the heart

Ulna

• a long bone
• located on the baby finger (5th phalange) side of the lower arm

Radius

• a long bone
• located on the thumb (1st phalange) side of the lower arm

Phalanges

• long bones
• commonly known as your fingers

Cranium

• a flat bone
• more commonly known as the skull and is made up of 4 separate bones

Vertebrae

• irregular bones
• together, the vertebrae make up the spinal column
• the spinal column is composed of 7 cervical, 12 thoracic and 5 lumbar vertebrae

Humerus

• a long bone
• makes up the entire upper arm

Rib Cage

• the ribs are flat bones
• made up of 12 pairs of ribs

Metacarpals

• short bones
• make up the palm of the hand