NEET PG Medical – 2015 – Question – 82
Floor of Petit triangle is formed by?
a) Sacrospinalis
b) Internal oblique
c) Rectus abdominis
d) Fascia Transversalis
Show Answer
Correct Answer – B
Ans. is ‘B’ i.e., Internal oblique [Ref Text book of surgical anatomy p. 148]
Boundaries of Petit triangle (inferior lumbar triangle) are?
- Base – Iliac crest
- Anterior boundary (abdominal boundary) → Posterior border of external oblique muscle.
- Posterior boundary (lumbar boundary) – Anterior border of latissimus dorsi.
- Floor is formed by internal oblique muscle.
Spoiler
