GAS1 Lab 4 - Anterior Abdominal Wall
OBJECTIVES:GAS1.4.1 Identify the osseous landmarks and ligaments associated with the abdomen and their surface projections. GAS1.4.2 Identify the fascial and muscular layers of the abdomen, emphasizing those penetrated as a result of a surgical incision through the rectus sheath and rectus abdominis muscle above the umbilicus and/or just above the pubic symphysis. GAS1.4.3Identify the femoral triangle, femoral sheath, its origins and its contents, including the anatomical location of different groups of lymph nodes (whether or not they are seen on images), and afferent sources and efferent targets of each group. Indicate the relationship of the sheath and femoral hernias. GAS1.4.4 Identify the muscular and ligamentous components of the inguinal ligament and inguinal canal in the male. Demonstrate the surface projections of the inguinal rings and inguinal canal. Discuss direct and indirect / hernias. GAS1.4.5 Trace the course of the spermatic cords as they descend through the inguinal canal to the scrotum. |
READINGS:Moore (Eighth Edition): Clinically Oriented Anatomy Pages: 406-438. |
Anterior Abdominal Wall: Lab 4 - Page 1 of 6
| Begin with the osseous structures surrounding the abdominal cavity. |
| Add the Lattisimus dorsi. |
| Add the Diaphragm. |
| Add the Tansversus abdominis. |
The transversus abdominus has a fibrous sheath, known as an aponeurosis that helps to form the posterior layer of the rectus sheath.
In the suprapubic area, this sheath forms the conjoint tendon.
| Look the Conjoint tendon which is highlighted in pink. This tendon near the symphsis pubus and can be indentified using the Highlight tool. |
| Add the rectus abdominus. |
Note the tendinous intersections of the rectus abdominus
What do body builders call the muscular hypertrophy between the tendenus intersections? |
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Their "six pack". |
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