Structure And Function Of Skeletal System

Protection of vital organ Muscle attachment Joints for movement Formation of blood cells Storage for minerals

Bones provide anchors for muscles to attach,. Tendons attach muscle to bones. Muscles pull on the bones to create movement

Bones act as levers to create movement. Longer levers - greater force

Platelets - clot blood when we are cut to stop bleeding WBC - fight infection so we are fit to take part in sports RBC - carry O2 to working muscles during exercise

Calcium and phosphorus is stored in the bones to keep them strong

Cervical 7 Thoracic 12 Lumbar 5 Sacrum 5 Coccyx 4

Smallest part of vertebrae. Form the neck (axis and atlas) allow head to move

Vertebrae that have worked together. They work together with our hip bones and support the weight of the vertebrae

Largest of the moveable vertebrae. They give us mobility in our lower back, help support the weight of the vertebrae and also attach various muscles.

Slightly bigger vertebrae and attach the ribs. They also attach various muscles to the back.

No function

Include - numerous, ulna, radius, femur, tibia, fibula, phalanges Function - longer then wide and vital to generate movement, speed and strength. Act as a lever to enable body to move.

Tarsals and carpals Function - important for weight bearing exercises, important to shock absorb the weight of the body.

Include - ribs, sternum, patella, scapula, pelvis Function - protect organs or offer a good surface for muscles to attach to. Muscles are needed for movement, scapula has three muscle groups attached to it.

Include - vertebral column Function - odd shapes and perform a range of functions. Some have a special shape to protect something, others have a lot of attachment points for muscles.

Made from tough elastic fibrous tissue. Joins bone to bone. Not much blood flows through ligaments - heal slowly for, a tear or sprain.

Ligaments help stabilize joints. When kicking a ball in football the ligaments in knee stabilize the joint.

Made from tough non elastic fibrous tissues. Attach muscles to bone. Training help strengthen tendons. Tendons in leg stronger then in wrist

Without tendons movement isn’t possible. Tendons pull muscles to contract and help provide powerful movements