اناٹومی مطالعاتی نوٹ · Upper limb

Flexor digitorum profundus

The deep long flexor of the fingers. Its tendons pass through those of FDS to reach the distal phalanges, and give origin to the lumbricals.

اہم نکات

• Ulna + interosseous membrane → distal phalanges of fingers 2–5.
• Dual nerve: median (index, middle) + ulnar (ring, little).
• Only muscle that flexes the DIP joints.
• Lumbricals arise from its tendons.
• Limb muscles: in situ from limb-bud mesenchyme.
• Upper limb bud C4–T2; lower limb bud L2–S2.
• Skeletal muscle: multinucleated, peripheral nuclei, striated.
• Epimysium → perimysium → endomysium.

اٹلس میں مکمل نوٹ میں یہ بھی شامل ہے

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۔

ماخذ

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 3, PDF pp. 308, 316–317
• Inderbir Singh’s Human Embryology, ch. 7, PDF p. 109; ch. 10, PDF pp. 142–145
• BRS Cell Biology & Histology, 7th ed., ch. 8, PDF pp. 135–144

upper limb سے مزید

• Flexor digitorum superficialis
• Flexor pollicis longus
• Flexor retinaculum and carpal tunnel
• Humerus
• Hypothenar muscles
• Infraspinatus
• Intercarpal and carpometacarpal joints
• Interossei of the hand
• Latissimus dorsi
• Levator scapulae
• Long thoracic nerve
• Lumbricals of the hand

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