Hand Flashcards
Proximal row of carpal bones
Scaphoid, lunate, triquetrum, pisiform
Distal row of carpal bones
Trapezium, trapezoid, capitate, hamate
Radiocarpal joint
Condyloid joint
Intercapal and carpometacarpal joint
Plane joint
Trapeziometacarpal joint
Saddle joint
Metacarpophalangeal joint
Condyloid joints
Interphalangeal joint
Hinge joint
Anterior border of the anatomical snuff box
Abductor pollicis longus and extensor pollicis brevis tendons
Posterior border of the anatomical snuff box
Extensor pollicis longus tendon
Proximal border of the anatomical snuff box
Extensor retinaculum
Contents of the anatomical snuff box
Radial artery and scaphoid bone
Innervation for anatomical snuff box
Superficial branch of radial nerve
Insertion of abductor pollicis brevis
Proximal phalanx of pollex
Action of abductor pollicis brevis
Abduction of pollex (TMC joint)
Innervation of abductor pollicis brevis
Recurrent branch of median nerve
Insertion of flexor pollicis brevis
Base of proximal phalanx of pollex
Action of flexor pollicis brevis
Flexion of MCP joint of pollex
Innervation of flexor pollicis brevis (superficial head)
Recurrent branch of median nerve
Innervation of flexor pollicis brevis (deep head)
Deep branch of ulnar nerve
Opponens pollicis insertion
Lateral surface of 1st metacarpal
Opponens pollicis action
Opposition of pollex (TMC joint)
Opponens pollicis innvervation
Recurrent branch of median nerve
Abductor digiti minimi insertion
proximal phalanx of 5th digit
Abductor digiti minimi action
abduction of 5th digit (MCP joint)
Abductor digiti minimi innervation
Deep branch of ulnar nerve
Flexor digiti minimi brevis insertion
Proximal phalanx of 5th digit
Flexor digiti minimi brevis action
Flexion of MCP joint of 5th digit
Flexor digiti minimi brevis innervation
Deep branch of the ulnar nerve
Opponens digiti minimi insertion
Medial surface of 5th metacarpal
Opponens digiti minimi action
Flexion and medial rotation of 5th metacarpal at CMC joint
Opponens digiti minimi innervation
Deep branch of ulnar nerve
Lumbricals origin
tendons of FDP
Insertion of lumbricals
Extensor expansions
Action of lumbricals
Flex MCP joints
Extend PIP and DIP joints
Innervation of lumbricals
Lateral 2: median nerve
Medial 2: deep branch of ulnar nerve
Which digits do the lumbricals reach
Digits 2-5
Lumbricals pass anterior to ___ and posterior to ___
Anterior to MCP joint
Posterior to IP joint
How many palmar interossei are there?
- They go to digits 2, 4, and 5
Palmar interossei insertion
Proximal phalanges and extensor expansions
Palmar interossei action
Adduction of digits 2, 4, and 5
Palmar interossei innervation
Deep branch of ulnar nerve
Dorsal interossei insertion
Proximal phalanges and extensor expansions
How many dorsal interossei are there?
- They go to digits 2, 3, and 4. Digit 2 has one on each side.
Dorsal interossei action
Abduction of digits 2, 3, and 4
Dorsal interossei innervation
Deep branch of ulnar nerve
Palmar hand receives cutaneous innervation from _____
Median and ulnar nerves
Dorsal hand receives cutaneous innervation from ____
Median, ulnar, and radial nerves
The palmar branch of the median nerve innervates the____
Lateral palm
The common palmar digital nerve of the median nerve innervates ___
Distal palm
The proper palmar digital nerve of the median nerve innervates the ____
Palmar surface of digits 1-3 and lateral 1/2 of digit 4
The dorsal branch of the ulnar nerve innervates the ___
Medial dorsum of the hand.
Branches from ulnar nerve in forearm
The common palmar digital nerve innervates the ____
Medial palm
The proper palmar digital nerve innervates the ____
Digit 5 and medial 1/2 of 4
Where is the ulnar canal?
Between the pisiform and hook of hamate