9.20.11+-+SS+Anterolateral+Abdominal+Wall

1. Name the nine layers of the anterolateral abdominal wall. 2. Define the following:

umbilicus

linea alba

linea semilunaris pubic symphysis pubic tubercle iliac crest 3. Name and define the following abdominal planes and regions: subcostal plane transpyloric plane midclavicular lines transumbilical plane 4. Identify recognize the following bony landmarks of the anterolateral abdominal wall: xiphoid process costal margin pubic symphysis pubic crest pubic tubercle

anterior superior iliac spine iliac crest

iliac tubercle 5. Identify the following fascias of the anterolateral abdominal wall: fatty (superficial) layer (aka Camper's fascia) membranous (deep) layer (aka Scarpa's fascia) deep fascia

transversalis fascia extraperitoneal fat parietal peritoneum 6. Identify the following muscles of the anterolateral abdominal wall. List the origin(s), insertion(s), innervation and action(s) of these muscles: external abdominal oblique

internal abdominal oblique

transversus abdominis

rectus abdominis

(pyramidalis muscle present in 80% of persons) 7. Define the following terms: linea alba/vertical line overlying linea alba

tendinous intersections/transverse grooves overlying tendinous intersections conjoint tendon (fused tendons of internal oblique and transversus abdominis mm.) inguinal ligament superficial inguinal ring rectus sheath arcuate line (what forms this?)

8. Identify the muscle/fascia layers of the anterolateral abdominal wall at the following 2 levels: between xiphisternum and umbilicus

between umbilicus and pubic crest (i.e., inferior to arcuate line)

9. Name the muscles, arteries and nerves found inside the rectus sheath.

10. Identify the nerves which innervate the skin and muscles of the anterolateral abdominal wall. Describe the regions innervated by them.

11. Identify structures found in the neurovascular plane between the internal oblique and the transversus abdominis mm.

12. Describe the vessels of the anterolateral abdominal wall.

13. Define the following terms relating to the internal surface of the anterolateral abdominal wall: falciform ligament

ligamentum teres (round ligament) parietal peritoneum

lateral umbilical folds

medial umbilical ligaments and folds median umbilical ligament and folds supra vesicle fossae

medial umbilical fossae

lateral umbilical fosse 14. Recognize and name the following features of the inguinal region: inguinal canal: lateral crus medial crus intercrural fibers superficial (external) inguinal ring deep inguinal ring

conjoint tendon

inferior epigastric a. and v. transversalis fascia inguinal ligament (aka Poupart's ligament) spermatic cord (in males)

round ligament of uterus (in females) testicular a. and v.

15. Identify the structures that form the 4 walls of the inguinal canal: anterior superior (roof) inferior (floor) posterior 16. Describe the anatomy of the superficial and deep rings of the inguinal canal.

17. Identify the structure that lies at the medial boundary of the deep inguinal ring.

18. Name the main constituent of the inguinal canal in males and in females.

19. Recognize and name the following anterolateral abdominal nerves: intercostal nn. (T7-T11) subcostal nn. (T12)

L1 n.

iliohypogastric n. ilioinguinal n. 20. Identify the following vessels of this area: inferior epigastric a. (forms lateral umbilical fold) superior epigastric a. 21. Identify the following lymph node groups of the anterolateral abdominal wall: superficial inguinal nodes axillary nodes