List of anatomical variations
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| Part of a series of lists about |
| Human anatomy |
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This page lists anatomical variations that are not deemed inherently pathological.
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Accessory features
Bones
Arteries
Muscles
- Accessory soleus muscle
- Axillary arch
- Epitrochleoanconeus muscle - or anconeous epitrochlearis
- Extensor medii proprius muscle
- Extensor digitorum brevis manus muscle
- Extensor indicis et medii communis muscle
- Extensor pollicis et indicis communis muscle
- Extensor carpi radialis tertius muscle - or extensor carpi radialis accessorius
- Linburg-Comstock variation - or conjoint flexor pollicis longus and flexor digitorum profundus of the index
- Sternalis muscle - or rectus thoracis
- Psoas minor muscle
- Palmaris profundus muscle
- Styloauricularis muscle
- Transversus nuchae muscle
Glands
Organs
Other
- Accessory pancreatic duct
- Accessory nail of the fifth toe
- Darwin's tubercle
- Vein of foramen caecum
- Osborne's ligament
- Gastropancreatic ligament
Lacking features
Muscles
- Risorius
- Psoas minor
- Missing or underdeveloped pectoralis major is called Poland's syndrome
Other
- Appendix
- Agenesis of wisdom teeth
Varying features
Bones
- Sesamoid bone of the second, third, fourth and fifth finger
Muscles
- Absence of the risorius
- Absence of the palmaris longus
- Dividement of the piriformis
Vasculature
- Artery of Percheron
- Double cystic artery
- Variation of basilic vein
- Median artery
- Thyroid ima artery
- Superficial ulnar artery
- Marginal artery of the colon
Other
- Anisocoria
- Appendix
- Crease of the upper eyelid – having either a "single" or "double" eyelid
- Lateral arcuate ligament
- Horseshoe kidney - also known as ren arcuatus