Flexor digitorum profundus muscle
Citation, DOI, disclosures and article data
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosuresAt the time the article was last revised Andrew Murphy had no financial relationships to ineligible companies to disclose.
View Andrew Murphy's current disclosures- Flexor digitorum profundus (FDP) muscles
The flexor digitorum profundus (FDP) muscle makes up the third layer of the anterior compartment of the forearm along with the flexor pollicis longus muscle. It passes through the carpal tunnel and is one of the extrinsic muscles of the hand. The flexor digitorum profundus muscle is considered a hybrid or composite muscle as it is innervated by two different nerves, the ulnar and anterior interosseous nerve.
Summary
-
origin:
medial olecranon, upper three-quarters of the anterior and medial surface of ulna, adjacent interosseous membrane
shares aponeurotic attachment to the posterior border of the ulna with flexor & extensor carpi ulnaris
insertion: volar surface of distal phalanges of the second to fifth fingers
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innervation
medial half (third, fourth and fifth digits): ulnar nerve
lateral half (second and third digits): anterior interosseous nerve
the third digit typically receives dual innervation 2
action: flexion at the distal interphalangeal, proximal interphalangeal and wrist joints
Quiz questions
References
- 1. Schuenke M, Schulte E, Schumacher U et-al. General Anatomy and Musculoskeletal System. Thieme. (2010) ISBN:1604062924. Read it at Google Books - Find it at Amazon
- 2. Hwang K, Bang SJ, Chung SH. Innervation of the Flexor Digitorum Profundus: A Systematic Review. Plastic surgery. 2018 May;26(2):120-125. doi:10.1177/2292550317740692 - Pubmed
Incoming Links
- Wrist
- Anterior compartment of the forearm
- Carpal tunnel
- Medical abbreviations and acronyms (F)
- Ulnar nerve
- Olecranon
- Extrinsic muscles of the hand
- Nail unit (anatomy)
- Linburg–Comstock anomaly
- Jersey finger
- Palmar carpal branches
- Ulna
- Anterior interosseous nerve syndrome
- Radiocarpal joint
- Cubital tunnel syndrome
- Phalanges of the hands
- Leddy and Packer classification of jersey finger injuries
- Hamate
- Space of Parona
- Flexor digitorum superficialis muscle
- Flexor tendons tenosynovitis - wrist
- Jersey finger
- Flexor pulleys of the finger - anatomy
- Jersey finger
- Flexor digitorum profundus tendon tear
- Flexor digitorum profundus tendon tear (little finger)
- Flexor digitorum profundus tendon tear (little finger)
- Flexor tendons laceration - hand
- Flexor tendons laceration - hand
- Middle finger flexor tendons partial thickness tear
- Jersey fingers
- Flexor tendons tenosynovitis - wrist
- Flexor digitorum profundus tendon rupture - zone III
- Thumb pulp abscess
- Flexor tenosynovitis - hand
Related articles: Anatomy: Upper limb
-
skeleton of the upper limb
- clavicle
- scapula
- humerus
- radius
- ulna
- hand
- accessory ossicles of the upper limb
- accessory ossicles of the shoulder
- accessory ossicles of the elbow
-
accessory ossicles of the wrist (mnemonic)
- os centrale carpi
- os epilunate
- os epitriquetrum
- os styloideum
- os hamuli proprium
- lunula
- os triangulare
- trapezium secondarium
- os paratrapezium
- os radiostyloideum (persistent radial styloid)
- joints of the upper limb
-
pectoral girdle
-
shoulder joint
- articulations
- associated structures
- joint capsule
- bursae
- ligaments
- movements
- scapulothoracic joint
-
glenohumeral joint
- arm flexion
- arm extension
- arm abduction
- arm adduction
- arm internal rotation (medial rotation)
- arm external rotation (lateral rotation)
- circumduction
- arterial supply - scapular anastomosis
- ossification centers
-
shoulder joint
-
elbow joint
- proximal radioulnar joint
- ligaments
- associated structures
- movements
- alignment
- arterial supply - elbow anastomosis
- development
-
wrist joint
- articulations
-
ligaments
- intrinsic ligaments
- extrinsic ligaments
- radioscaphoid ligament
- dorsal intercarpal ligament
- dorsal radiotriquetral ligament
- dorsal radioulnar ligament
- volar radioulnar ligament
- radioscaphocapitate ligament
- long radiolunate ligament
- Vickers ligament
- short radiolunate ligament
- ulnolunate ligament
- ulnotriquetral ligament
- ulnocapitate ligament
- ulnar collateral ligament
- associated structures
- extensor retinaculum
- flexor retinaculum
- joint capsule
- movements
- alignment
- ossification centers
-
hand joints
- articulations
- carpometacarpal joint
-
metacarpophalangeal joints
- palmar ligament (plate)
- collateral ligament
-
interphalangeal joints
- palmar ligament (plate)
- collateral ligament
- movements
- ossification centers
- articulations
-
pectoral girdle
- spaces of the upper limb
- muscles of the upper limb
- shoulder girdle
- anterior compartment of the arm
- posterior compartment of the arm
-
anterior compartment of the forearm
- superficial
- intermediate
- deep
-
posterior compartment of the forearm (extensors)
- superficial
- deep
- muscles of the hand
-
accessory muscles
- elbow
- volar wrist midline
- palmaris longus profundus
- aberrant palmaris longus
- volar wrist radial-side
- accessory flexor digitorum superficialis indicis
- flexor indicis profundus
- flexor carpi radialis vel profundus
- accessory head of the flexor pollicis longus (Gantzer muscle, common)
- volar wrist ulnar-side
- dorsal wrist
- blood supply to the upper limb
-
arteries
- subclavian artery (mnemonic)
- axillary artery
- brachial artery (proximal portion)
- ulnar artery
- radial artery
- veins
-
arteries
- innervation of the upper limb
- intercostobrachial nerve
-
brachial plexus (mnemonic)
- branches from the roots
- branches from the trunks
- branches from the cords
- lateral cord
- posterior cord
- medial cord
- terminal branches
- lymphatic drainage of the upper limb
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