What are some common causes of exercise-related injuries?

Which two levels of the spine that can undergo flexion and extension?

Max is a child with special needs. what is the best way his family can support max? a. place max in an institution that looks after such children b. limit his exposure to the outside world c. provide max with as normal a childhood as possible d. prevent max from mixing with other children with special needs

Select all of the possible methods of aids transmission.