Hand Flashcards
List the groups of intrinsic muscles of the hand
Thenar Hypothenar Lumbricals Interossei Palmaris brevis Adductor pollicis
List the thenar muscles of the hand
Opponens pollicis
Abductor pollicis brevis
Flexor pollicis brevis
What is the origin + insertion of opponens pollicis?
Trapezium, flexor retinaculum
Lateral aspect of thumb
What is the nerve + arterial supply to opponens pollicis?
Median nerve
Superficial palmar arch
Which movements does opponens pollicis enable?
Thumb: flexion at CMJ (opposition)
What is the origin + insertion of abductor pollicis brevis?
Scaphoid, trapezium, flexor retinaculum
Proximal phalanx of thumb
What is the nerve + arterial supply to abductor pollicis brevis?
Median nerve
Superficial palmar arch
Which movements does abductor pollicis brevis enable?
Thumb: abduction, opposition, extension
What is the origin + insertion of flexor pollicis brevis?
Trapezium, flexor retinaculum
Proximal phalanx of thumb
What is the nerve + arterial supply to flexor pollicis brevis?
Median nerve
Superficial palmar arch
Which movements does flexor pollicis brevis enable?
Thumb: flexion
What is the main nerve supply to the thenar muscles?
Median nerve
List the hypothenar muscles of the hand
Opponens digiti minimi
Abductor digiti minimi
Flexor digiti minimi brevis
What is the origin + insertion of opponens digiti minimi?
Hamate
5th metacarpal
What is the nerve + arterial supply to opponens digiti minimi?
Ulnar nerve
Ulnar artery