Soc12 - Skeletal System Flashcards
What are the 5 functions of the Skeletal System ?
Protection Of Vital Organs Muscle Attachment Joints For Movement Storing Calcium And Phosphorus Red And White Blood Cell Production
What is the bone in the upper arm ?
Humerus
What bone is below the Humerus ?
Rib Cage
What are the 3 bones in the feet
Phalanges / Meta Tarsels / Tarsels
What are the 3 bones in the hand ?
Phalanges / Meta Carples / Carpals
What are the 5 parts of the spine ?
Cervical (7) / Thoracic (12) / Lumbar (5) / Sacrum (5, fused) / Coccyx (4, fused)
What is the knee cap bone called ?
Patella
What bones are in the lower arm ?
Radius and Ulna
Long Bones
Long bones are longer than they are wide.
These bones are vital to generate movement
Has a shaft and two ends
Short bones
Short bones are generally the same size in length, width and thickness. The only short bones in the body are the carpals (cuffs) in the wrist and the tarsals (toes) in the foot.
Short bones are usually associated with weight baring.
Flat Bones
Flat bones usually protect organs or offer a good surface for musles to attach to. E.g the ribs protect the heart and lungs. Other flat bones are Scapula, Cranium, Clavicle
Irregular Bones
Have odd shapes and vary in function. E.g. the vertebrae which helps protect the spinal column
Irregular bones offer protection when playing sport.
What is a joint ?
A joint is where two or more bones meet
Pivot Joints
Pivot joints allow bones to rotate
Hinge Joints
A hinge joint is a joint that allows any backward and forward motion
