Updated: 12/28/2021

Extensor Indicis Proprius

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                        Summary
                    
                        Extensor Indicis Proprius
                    
                        Origin
                    
                        Posterior surface of ulna and interosseous membrane
                    
                        Insertion
                    
                        Extensor expansion of 2nd digit
                    
                        Action
                    
                        Extends 2nd digit and helps to extend the hand
                    
                        Innervation
                    
                        Posterior interosseous nerve (C7, C8)
                    
                        Arterial supply
                    
                        Posterior interosseous artery

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Flashcards (5)

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Action	Numeric Key	Letter Key	Function Key
Show Bullets		S	Enter (frontside only)
20%	1	N
40%	2	H
60%	3	F	Enter (backside only)
80%	4	E
100%	5	M
Toss	0	T

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Anatomy⎪Extensor Indicis

Anatomy
- Extensor Indicis Proprius

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Extensor Indicis Proprius
Origin	Posterior surface of ulna and interosseous membrane
Insertion	Extensor expansion of 2nd digit
Action	Extends 2nd digit and helps to extend the hand
Innervation	Posterior interosseous nerve (C7, C8)
Arterial supply	Posterior interosseous artery