Question

Boundaries of lumbar triangle of Petit are formed by all, except:

a. Lateral border of latissimus dorsi

b. Posterior border of external oblique muscle of abdomen

c. Iliac crest

d. Quadratus lumborum​

Answer 1

D. Quadratus lumborum

The petit triangle consists of latissimus dorsi (posteriorly), the iliac crest inferiorly and external abdominal oblique (anteriorly).

Hope this helps :)

Answer 2

The boundaries of the lumbar triangle of Petit are formed by all the above described except the quadratus lumborum​ (Option D).

What is the lumbar triangle of Petit?

The lumbar triangle of Petit is a region of human tissues located in the posterior lower abdominal wall.

• The petit triangle is formed by the latissimus dorsi, the iliac crest, and the external abdominal oblique.

• This area consists of a depression between the posterior and the anterior border of the latissmus dorsi.

In conclusion, the boundaries of the lumbar triangle of Petit are formed by all the above described except the quadratus lumborum​ (Option D).

Learn more about the latissmus dorsi here:

https://brainly.com/question/1183479