Author: Roberto Grujičić MD•Reviewer: Gordana SendicLast reviewed: September 23, 2021Reading time: 2 minutes
Flexor digiti minimi brevis spreads from the hook that hamate bone and also flexor retinaculum to the basic of proximal phalanx that the little finger. The main role of this muscle is flexion that the little finger in metacarpophalangeal joint.
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|Origin||Hook that hamate, flexor retinaculum|
|Insertion||Base the proximal phalanx of number 5|
|Action||Metacarpophalangeal share 5: Finger flexion (+ finger lateral rotation/opposition)|
|Innervation||Deep branch of ulnar nerve (C8, T1)|
|Blood supply||Deep palmar branch of ulnar artery|
In this article, we will comment on the anatomy and role of the flexor digiti minimi brevis muscle.
Origin and also insertion
Flexor digiti minimi brevis muscle occurs by a quick tendon native the hook the hamate bone and also medial element of flexor retinaculum. From here the muscle fibers run distally and also medially, passing over the fifth metacarpophalangeal joint. The muscle inserts along with abductor digiti minimi onto the medial next of the basic of proximal phalanx that the small finger.
Flexor digiti minimi brevis muscle is located on the ulnar side of the palm, developing the hypothenar eminence with abductor digiti minimi and also opponens digiti minimi muscles.
The muscle is located inferior and lateral to adductor digiti minimi muscle and also superior and medial to opponens digiti minimi muscle. The proximal parts of flexor digiti minimi brevis and also abductor digiti minimi muscles type a space through which deep branches of the ulnar artery and also ulnar nerve pass.
The flexor digiti minimi brevis, like other hypothenar muscles, is innervated by the deep branch the the ulnar nerve (root value C8 and T1).
Flexor digiti minimi brevis muscle obtain its blood it is provided from the deep palmar branch the ulnar artery.
The main function of the flexor digiti minimi brevis is flexion the the little finger at the metacarpophalangeal joint. Also, this muscle participates in lateral rotation and also opposition that the tiny finger.
References:Palastanga, N., & Soames, R. (2012). Anatomy and also human movement: framework and duty (6th ed.). Edinburgh: Churchill Livingstone.Standring, S. (2016). Gray"s Anatomy (41tst ed.). Edinburgh: Elsevier Churchill Livingstone.Netter, F. (2014). Atlas of person Anatomy (6th ed.). Philadelphia, PA: Saunders.
Illustrations:Flexor digiti minimi brevis muscle (Musculus flexor digiti minimi brevis) - Yousun Koh
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