Skeleton

• There are 3 types of skeleton in humans and animals, namely exoskeleton, endoskeleton & hydrostatic skeleton. Humans have endoskeletons.
• Skeletons help support body weight, protect internal organs, and give movements.
• Human skeletons consist of axial skeleton (the skull, rib cage & vertebral column) and appendicular skeleton (pectoral girdle, pelvic girdle, upper limbs & lower limbs).
• Ribs attach to the sternum and spine, and also the rib cage that protects vital organs such as the heart and the lungs.