Hand & Wrist

Question 1

1st Compartment Dorsal Wrist Tendon

Answer 1

Abductor Pollicis Longus

Extensor Pollicis Brevis

Question 2

2nd Dorsal Compartment Wrist Tendon

Answer 2

Extensor Carpi Radialis Longus & Brevis

Question 3

3rd Dorsal Wrist Compartment

Answer 3

Extensor Pollicis Longus

Question 4

4th Dorsal Wrist Compartment

Answer 4

Extensor Digitorum & Extensor Indicis

Question 5

5th Dorsal Wrist Compartment

Answer 5

Extensor DIgiti Minimi

Question 6

6th Dorsal Wrist Compartment

Answer 6

Extensor Carpi Ulnaris

Question 7

Abductor Pollicis Brevis

Answer 7

Flexor Retinaculum, Scaphoid, and Trapezium
Radial base of proximal phalanx of thumb
Recurrent branch of Median N (C8-T1)
Superficial palmar branch of Radial A
Thumb ADD

Question 8

Opponens Pollicis

Answer 8

Flexor Retinaculum, Scaphoid, and Trapezium
Lateral 1st metacarpal
Recurrent Branch of Median N (C8-T1)
Superficial Palamar Branch of Radial A
Thumb Opposition

Question 9

Flexor Pollicis Brevis

Answer 9

Flexor Retinaculum & Trapezuim/Trapezoid & Capitate
Base of Proximal Phalanx Thumb
Recurrent Branch & Ulnar N (C8-T1)
Superficial Palmar Branch of Radial A
First MCP FLX, Thumb Opposition

Question 10

Palmaris Brevis

Answer 10

Flexor Retinaculum & Superficial Palmar Fascia
Hypthenar Skin
Superficial branch of Ulnar N (C8)
Superficial Palmar Branch Ulnar A
Skin folds on hypothenar eminence

Question 11

Abductor Digiti Minimi

Answer 11

Pisiform
Medial Proximal Phalanx of 5th digit
Deep Branch of Ulnar N (C8-T1)
Superficial Palmar Branch Ulnar A
Digit 5 ABD

Question 12

Flexor DIgiti Minimi Brevis

Answer 12

Flexor Retinaculum & Hook of Hamate
Base of 5th Digit Proximal Phalanx
Deep Branch of Ulnar N (C8-T1)
Ulnar A
Flexion of 5th MCP

Question 13

Opponens Digiti Minimi

Answer 13

Flexor Retinaculum & Hook of Hamate
Medial Border of 5th Metacarpal
Deep Branch of Ulnar N (C8-T1)
Ulnar A
Opposition of 5th Metacarpal

Question 14

Lumbricals

Answer 14

Tendons of Flexor Digitorum Profundus
Extensor Hood/extension expansion system of same digit
The 1st & 2nd by Median N, 3rd & 4th by deep branch of Ulnar N (C8-T1)
Palmar Arches & Branches
MCP FLX & PIP/DIP EXT

Question 15

Adductor Pollicis

Answer 15

Capitate, Metacarpal 2-3
Medial Surface of thumb proximal phalanx (1 sesamoid bone)
Deep Branch of ulnar N (C8-T1)
Deep Palmar Arch Branches
Thumb ADD

Question 16

Palmar Interossei

Answer 16

Metacarpal 2, 4, 5
Extensor Hood of 2, 4, & 5
Deep branch of Ulnar N (C8-T1)
Palmar Metacarpal A
With ADDuctor Pollicis ADD, 3rd finger as the axis

Question 17

Extensor Hood

Answer 17

Triangular Aponeurosis
Extensor DIgitorum Tendon Attachment
Intrinsic Muscles Attachment

Question 18

Function of Extensor Hood

Answer 18

FLX of MCP & EXT PIP/DIP

Question 19

Hood of Benediction

Answer 19

Ulnar N @ wrist cause clawing

Median N @ elbow/wrist cause clawing

Question 20

Boutonniere Deformity

Answer 20

MCP EXT, PIP FLX, & DIP EXT

Proximal rupture of central band from extensor Digitorum

Question 21

Swan Neck Deformity

Answer 21

MCP FLX, PIP EXT, DIP FLX

Distal rupture of extensor digitorum tendon or retinacular ligament sprain/rupture

Question 22

Mallet Finger

Answer 22

MCP/PIP normal, DIP FLX

Distal rupture of extensor digitorum tendon

Question 23

Colles Fracture

Answer 23

Wrist bending outward

Common in elderly with high risk of falling & Osteopenia/porosis

Question 24

Smith Fracture

Answer 24

Wrist bending inward on impact