اناٹومی مطالعاتی نوٹ · Abdomen

Quadratus lumborum

A flat quadrilateral muscle of the posterior abdominal wall beside the lumbar vertebral column.

اہم نکات

Iliolumbar ligament + iliac crest → 12th rib + upper lumbar transverse processes.
Lumbar plexus.
Fixes the 12th rib; lateral flexion.
Fascia on it forms the lateral arcuate ligament.
Trunk muscles: from myotomes of the somites.
Dorsal part → dorsal-ramus muscles; ventral part → ventral-ramus muscles.
Skeletal muscle: multinucleated, peripheral nuclei, striated.
Epimysium → perimysium → endomysium.

خصوصیات · Origin · Insertion · Action · Nerve supply · Histology · Development

مفت سائن اِن کریں تاکہ اسے 3D ماڈل پر دیکھیں، مکمل نوٹ پڑھیں اور اس پر سوالات کی مشق کریں۔

Snell’s Clinical Anatomy by Regions, 10th ed., ch. 6, PDF pp. 748–750; ch. 2, PDF p. 160
Inderbir Singh’s Human Embryology, ch. 7, PDF pp. 108–109
BRS Cell Biology & Histology, 7th ed., ch. 8, PDF pp. 135–144