Updated: 12/27/2021

Flexor Digitorum Superficialis

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                        Summary
                    
                        Flexor Digitorum Superficialis
                    
                        Origin
                    
                        Humeroulnar head: medial epicondyle of humerus, ulnar collateral ligament, and coronoid process of ulna.
                    
                        Radial head: superior half of anterior border of radius
                    
                        Insertion
                    
                        Bodies of middle phalanges of fingers
                    
                        Action
                    
                        Flexes middle phalanges at PIP joints of digits 2-5. Also flexes proximal phalanges at MCP joint.
                    
                        Innervation
                    
                        Median nerve (C7, C8, T1)
                    
                        Arterial supply
                    
                        Ulnar artery

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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⎪ Flexor Digitorum Superficialis

Anatomy
- Flexor Digitorum Superficialis

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Flexor Digitorum Superficialis
Origin	Humeroulnar head: medial epicondyle of humerus, ulnar collateral ligament, and coronoid process of ulna. Radial head: superior half of anterior border of radius
Insertion	Bodies of middle phalanges of fingers
Action	Flexes middle phalanges at PIP joints of digits 2-5. Also flexes proximal phalanges at MCP joint.
Innervation	Median nerve (C7, C8, T1)
Arterial supply	Ulnar artery