206, The adult human skeleton has how many bones, Skull, Which bone protects the brain?, Vertebral column, The backbone is also called, Ball and socket joints, Which joint allows movement in all directions?, Femur, The longest bone in the human body is, Hinge, Which joint type allows movement in one plane only (flexion and extension), Pelvic girdle, The axial skeleton includes all of the following EXCEPT:, Produce blood cells, The primary function of red bone marrow is to:, Osteoporosis, Which condition results from decreased bone density and increased fracture risk, Patella, Which bone is classified as a sesamoid bone?

Skeletal System

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