Page 494 - First Aid for the USMLE Step 1 2020, Thirtieth edition [MedicalBooksVN.com]_Neat

450 section iii Musculoskeletal, skin, and connective tissue ` anatomy and physiology Musculoskeletal, skin, and connective tissue ` anatomy and physiology

Hand muscles Thenar (median)—Opponens pollicis, Abductor Both groups perform the same functions:
pollicis brevis, Flexor pollicis brevis, superficial Oppose, Abduct, and Flex (OAF).

Thenar Hypothenar head (deep head by ulnar nerve).
eminence eminence Hypothenar (ulnar)—Opponens digiti minimi,
Abductor digiti minimi, Flexor digiti minimi
brevis.
Dorsal interossei (ulnar)—abduct the fingers. DAB = Dorsals ABduct.
Palmar interossei (ulnar)—adduct the fingers. PAD = Palmars ADduct.
Lumbricals (1st/2nd, median; 3rd/4th, ulnar)—
flex at the MCP joint, extend PIP and DIP
joints.

FAS1_2019_11-Musculo.indd 450 11/7/19 5:23 PM