Adductor Pollicis

Original Editor - Shanshika Maddumage


Top Contributors - Shanshika Maddumage, Shaimaa Eldib and Kim Jackson

Description

Adductor Pollicis.png

Adductor pollicis muscle lies deep to thenar muscles. It has two heads, oblique head and the transverse head. [1]

Origin

  • Oblique head originates from bases of 2nd-3rd metacarpals
  • Transverse head originates from the shaft of 3rd metacarpal [1]

Insertion

The base of proximal phalanx of thumb on its medial aspect [1]

Nerve

Deep branch of ulnar nerve. It ends in this muscle [1][2]

Artery

Deep palmar arch

Main trunk of the radial artery passes into the palm between the oblique and transverse heads of the adductor pollicis to form the deep palmar arch[1] [2]

Function

Adduction of thumb

Clinical relevance

Froment's sign

Assessment

[3]

Resources

  1. 1.0 1.1 1.2 1.3 1.4 Chaurasia BD. BD Chaurasia's Human Anatomy. CBS Publishers & Distributors PVt Ltd.; 2010. p112-13.
  2. 2.0 2.1 Sinnatamby CS. Last's Anatomy, International Edition: Regional and Applied. Elsevier Health Sciences; 2011 Apr 19.
  3. Adductor pollicis MMT. Available from: https://www.youtube.com/watch?v=RaIuVDE0Nw0&pbjreload=101&ab_channel=BallStateAthleticTraining[Last accessed 19/10/2020]