List of anatomical variations

Mundane anatomical variations in humans

Part of a series of lists about
Human anatomy

General

* Features
* Regions
* Variations
* Movements
* Systems

Structures

* Arteries
* Bones
* Eponymous
* Foramina
* Glands
* endocrine
* Lymphatic vessels
* Nerves
* Organs
* Systems
* Veins

Muscles

* Abductors
* Adductors
* Depressors
* Elevators
* Extensors
* Flexors
* Rotators
* external
* internal

See also

* Glossary of medicine

* Epithelia
* Anatomical terminology
* Index of anatomy articles
* Outline of anatomy
* Cell types
* by origin

* v
* t
* e

This article lists anatomical variations that are not deemed inherently pathological.

This list is incomplete; you can help by adding missing items. (December 2013)

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## Accessory features[edit]

### Bones[edit]

* Cervical rib
* Fabella
* Foramen tympanicum
* Supracondylar process of the humerus
* Sternal foramen
* Stafne bone cavity
* Episternal ossicles
* Fossa navicularis magna
* Transverse basilar fissure \- or Saucer's fissure
* Canalis basilaris medianus
* Craniopharyngeal canal
* Intermediate condylar canal
* Foramen arcuale
* Os odontoideum
* Os acromiale
* Ossiculum terminale (of dens)
* Scapular foramina and tunnels

### Muscles[edit]

* 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
* Pterygoideus proprius muscle
* Styloauricularis muscle
* Transversus nuchae muscle
* Accessory popliteus muscle
* Tensor fasciae suralis muscle
* Sternoclavicularis anticus muscle
* Gluteoperinealis muscle
* Gantzer's muscle
* Levator claviculae muscle
* Chondrocoracoideus muscle

### Vasculature[edit]

* Double cystic artery

### Glands[edit]

* Accessory parotid gland
* Zuckerkandl's tubercle

### Organs[edit]

* Accessory spleen
* Azygos lobe of the lung
* Tracheal bronchus
* Hirsuties coronae glandis
* Cardiac bronchus

### Other[edit]

* Accessory pancreatic duct
* Accessory nail of the fifth toe
* Darwin's tubercle
* Vein of foramen caecum
* Osborne's ligament
* Gastropancreatic ligament
* Diagonal ear lobe crease
* Preauricular sinus
* Supernumerary nipple

## Lacking features[edit]

### Muscles[edit]

* Risorius
* Psoas minor
* Absence of the palmaris longus
* Dividement of the piriformis
* Missing or underdeveloped pectoralis major is called Poland's syndrome

### Other[edit]

* Appendix
* Agenesis of wisdom teeth
* Empty sella turcica

## Varying features[edit]

### Bones[edit]

* Sesamoid bone of the second, third, fourth and fifth finger
* Manubriosternal fusion
* Sternoxiphoidal fusion

### Muscles[edit]

* Myocardial bridge

### Nerves[edit]

* Nerve of Mckenzie

### Vasculature[edit]

* Artery of Percheron
* Variation of basilic vein
* Median artery
* Thyroid ima artery
* Superficial ulnar artery
* Marginal artery of the colon
* Persistent primitive olfactory artery
* Arc of Bühler
* Stapedial artery
* Hypoglossal artery
* Corona mortis

### Other[edit]

* Anisocoria
* Appendix
* Crease of the upper eyelid – having either a "single" or "double" eyelid
* Epicanthic fold
* Lateral arcuate ligament
* Horseshoe kidney \- also known as ren arcuatus

## See also[edit]

* Supernumerary body part
* Congenital anomalies
* Psoas minor muscle

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