1. The external oblique muscle arises from the last
   (a) 6 ribs
   (b) 8 ribs
   (c) 10 ribs
   
   
2. As the external oblique arises it interdigitates with two other muscles. Which ones and on which ribs?
   
   
3. The lower free edge of the external oblique is the inguinal ligament. To which two bony points does it attach?
   
   

Answers