Anatomy and Cell Biology 2221 Lecture Notes - Lecture 12: Opponens Pollicis Muscle, Hypothenar Eminence, Adductor Pollicis Muscle

• School: Western University
• Department: Anatomy and Cell Biology
• Course: Anatomy and Cell Biology 2221
• Professor: Brian L Allman

Document Summary

The most superficial tissue in the hand is the palmar aponeurosis. This is tissue found between the tendons going to the finger tips. This is the (cid:862)(cid:373)eaty(cid:863) part of the ha(cid:374)d (cid:271)y the thu(cid:373)(cid:271). Flexor pollicis brevis (fpb: abductor pollicis brevic (apb, opponens pollicis (op) This (cid:373)us(cid:272)le sits (cid:449)ith the the(cid:374)ar e(cid:373)i(cid:374)e(cid:374)(cid:272)e (cid:271)ut is(cid:374)"t part of it. 2nd and 3nd mcs to 1st proximal phalange. This is the muscular side of the hand on the pinky side, smaller than thenar eminence. Flexor digiti minimi (fdm: abductor digiti minimi (adm, opponens digiti minimi (odm) There are 4 lumbricals located deep in the hand. 2nd-5th digits flexion @ mcp joint, extension @ Lumbricals 3 & 4 = deep branch of ulnar n. Tendons of fdp to the lat. side of the extensor expansion on digits 2-5. Note: there is a discrepancy between the digit number and the lumbrical number (l1 = digit 2, l2 = digit 3 etc. )