John (25 years old) and his mother Jane (60 years old) are in a car accident.

(4 marks total)

  1. Both John and Jane break several ribs, and also suffer abdominal trauma, requiring surgery to their intestines.

Describe one likely difference in their recovery, for each of BONE and SMOOTH MUSCLE (in the intestinal wall), based on their age. (3 marks)

  1. John also suffers damage to his spinal cord during the accident. Compare the likely recovery of his SPINAL CORD compared to the SMOOTH MUSCLE of his intestinal wall, and long term consequences. (1 mark)