Dissecting the Abdomen Day #4 & #5

Focus question: What muscles will be displayed in the abdomen? What will they look like?

Location: Locating latissimus dorsi, rectus abdominus, external and internal obliques, transverse abdominus and the linea alba

Procedure:

1. Remove cat from bag
2. Turn booklet to the page which documents muscles in abdominal region
3. Make abdominal incision right under the ribcage
4. Separate the two layers of the muscle layers
5. locate muscles named in the 'location' section of the entry

Materials used:

1. Cat
2. Booklet
3. apron
4. gloves
5. mask
6. scalpel

Data Collected:
The latissimus dorsi was by far, the easiest muscle to locate due to its length. It is lateral to the erector spinae, in the back near the shoulder blades. The external and internal obliques are attached together and are very thin. The linea alba is the white, very clear lining that runs from underneath the nipple straight down over the abdominal muscles. The striations of the transverse abdominus showed that the muscle was under the internal obliques.

Conclusion:

The abdominal muscles were easier to locate than the chest muscles were. All of the muscles were more distinguishable. This section was definitely better than the chest muscles. It was less confusing and more open than the chest. The latissimus Dorsi, Rectus abdominus, external and internal obliques, transverse abdominus and the lines alba