Physical and neurological impairments can affect mobility and motor skills. Physical disabilities involve conditions that impair the skeletal, muscular or neurological systems. They may cause limited energy, poor coordination and concentration. Orthopedic impairments affect the bones, joints and muscles. Causes include genetic disorders, birth defects, illnesses and accidents. Neurological impairments involve damage to the nervous system, restricting movement, feeling or control. Cerebral palsy and traumatic brain injuries are examples, potentially causing paralysis, weakness or seizures. Spina bifida is a birth defect where the spine does not fully close, potentially damaging the spinal cord. Educational accommodations for those with physical or neurological impairments may include accessibility modifications, assistive technologies, mobility aids