Hand bones
Total: 27 bones
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Hand bone carpel metacarpal, Schemes and Mind Maps of Medicine
Bones of hand Upper limb anatomy
Typology: Schemes and Mind Maps
2024/2025
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Hand bones
Total: 27 bones
Total: 27 bones
- Carpals (8) → wrist
- Metacarpals (5) → palm
- Phalanges (14) → fingers ⸻
- Carpal Bones (8)
- Arranged in two rows (proximal & distal).
- Proximal row (lateral → medial):
- Scaphoid
- Lunate
- Triquetral
- Pisiform (sesamoid bone in tendon of flexor carpi ulnaris)
- Distal row (lateral → medial):
- Trapezium
- Trapezoid
- Capitate (largest)
- Hamate (hooked process) Mnemonic: “Some Lovers Try Positions That They Can’t Handle” ⸻
- Metacarpals (5)
- Numbered I–V (thumb → little finger).
- Each has: base, shaft, head.
- Bases articulate proximally with carpals.
- Heads (distal) form knuckles. ⸻
- Phalanges (14)
- Proximal, middle, distal in each finger except thumb (only proximal & distal).
- Distal phalanges → flattened tips (support nails). ⸻ Applied Anatomy
- Scaphoid fracture → most common carpal fracture, risk of avascular necrosis (proximal pole).