Hand and wrist

Which is the origin of the extensor indicis?

a. anterior surface of proximal shaft of ulna and interosseous membrane b. posterior surface of proximal shaft of ulna and radial styloid c. shaft of the radius and interosseous membrane d. posterior surface of distal shaft of ulna and interosseous membrane

Which of the following is an action of the extensor indicis?

a. assist to abduct the second finger b. stabilize the metacarpophalangeal joint at the second finger c. adduct the second finger d. flex the second finger

Which of the following is an action of the flexor digitorum profundus?

a. assist to abduct the wrist b. assist to extend the wrist c. assist to flex the wrist d. assist to adduct the wrist

Which of the following is an action of the palmaris longus?

a. assist with pronation of forearm b. flex the wrist c. adduct the wrist d. extend the elbow

Which is the insertion of the extensor carpi radialis brevis?

a. base of first metacarpal b. base of third metacarpal c. proximal phalanx of second finger d. distal phalanx of first finger

Which is the insertion of the extensor digitorum?

a. bases of middle and distal phalanges of 2nd - 5th fingers b. bases of middle phalanges of 2nd - 5th fingers c. distal phalanges of 1st - 3rd fingers d. bases of middle and distal phalanges of 4th and 5th fingers

Which of the following is a part of the insertion of the flexor digitorum profundus?

a. bases of proximal phalanges, palmar surface b. bases of 2nd and 3rd metacarpals c. palmar aponeurosis d. bases of distal phalanges, palmar surface

Which bone articulates with the first metacarpal and is the source of the thumb's unique movements?

a. capitate b. scaphoid c. lunate d. trapezium

The convex heads of the finger metacarpals articulate with the shallow concave bases of the proximal phalanges at which joints?

a. carpometacarpal b. metacarpophalangeal c. intermetacarpal d. interphalangeal

Which is the origin of the extensor carpi ulnaris?

a. common extensor tendon from supracondylar ridge of the humerus b. common extensor tendon from lateral epicondyle of the humerus c. radial tuberosity of radius d. common extensor tendon from medial epicondyle of the humerus

Which is the origin of the flexor carpi radialis?

a. common flexor tendon from medial epicondyle of humerus b. medial epicondyle and proximal shaft of ulna c. medial supracondylar ridge of humerus d. common flexor tendon from lateral epicondyle of humerus

Which movement lengthens the fibers of extensor digitorum?

a. elbow extension b. wrist extension c. finger extension d. finger flexion

Which of the following is an action of the flexor carpi radialis?

a. extend the elbow b. ulnarly deviate the wrist c. pronate the forearm d. radially deviate the wrist

Lister's tubercle is a bony landmark that can be easily palpated and used to locate the tendon of which muscle?

a. extensor pollicis longus b. extensor pollicis brevis c. abductor pollicis longus d. extensor carpi radialis brevis

Which muscles lie between the metacarpals of the digits and adduct the digits toward the middle finger?

a. extensor pollicis longus and brevis b. palmar interossei c. dorsal interossei d. abductor pollicis longus and brevis

In order for tenodesis to be useful in providing a functional grip for an individual with paralysis of the finger flexors, which other structure(s) of the hand and forearm must be intact?

a. finger extensors b. wrist flexors c. wrist extensors d. hypothenars

Which of the following is an action of the extensor indicis?

a. flex the second finger b. adduct the second finger c. assist to abduct the second finger d. stabilize the metacarpophalangeal joint at the second finger

Which of the following is an action of the extensor digitorum?

a. flex the wrist b. extend the elbow c. flex the elbow d. assist to extend the wrist

The lumbricals originate from the tendons of which muscle?

a. flexor carpi radialis b. flexor digitorum profundus c. palmaris longus d. extensor digitorum

What are the three superficial muscles in the flexor group?

a. flexor carpi radialis, flexor carpi ulnaris, and flexor digitorum profundus b. palmaris longus, flexor carpi radialis, and flexor carpi ulnaris c. flexor carpi radialis, flexor carpi ulnaris, and flexor digitorum superficialis d. palmaris longus, flexor digitorum superficialis, and flexor digitorum profundus

The pisiform is the location of insertion for the tendon of which muscle?

a. flexor carpi ulnaris b. extensor carpi ulnaris c. palmaris longus d. flexor carpi radialis

Which is the insertion of the palmaris longus?

a. flexor retinaculum and palmar aponeurosis b. distal phalanges of 2nd - 5th fingers c. bases of second and third metacarpals d. base of fourth metacarpal

Which carpal can be palpated on the radial aspect of the volar palm opposite the pisiform?

a. hamate b. trapezium c. scaphoid d. pisiform

Which bony landmark articulates with the radius at the distal radioulnar joint?

a. head of the ulna b. Lister's tubercle c. styloid process of the ulna d. head of the radius

Trigger finger is commonly seen in people with which of the following systemic conditions?

a. heart disease b. cancer c. lupus d. diabetes

Which is the insertion of the flexor carpi ulnaris?

a. hook of hamate b. base of fourth metacarpal c. pisiform, hook of the hamate, and base of fifth metacarpal d. bases of second and third metacarpals

Pronation and supination occur at which joint?

a. humeroulnar b. radioulnar c. humeroradial d. radiocarpal

Each wrist contains how many carpal bones?

a. 8 b. 5 c. 10 d. 4

Which pulleys are most important to prevent bowstringing of flexor tendons when making a fist?

a. A3 and A5 b. A1 and A3 c. C1 and C3 d. A2 and A4

Which muscle runs from the pisiform and the base of the fifth finger?

a. abductor digiti minimi b. opponens pollicis c. lumbricals d. dorsal interossei

Which muscle is primarily responsible for creating opposition of the thumb?

a. abductor pollicis longus b. flexor pollicis brevis c. adductor pollicis d. opponens pollicis

The distal tendons of which muscles form the "anatomical snuffbox"?

a. adductor pollicis and flexor pollicis brevis b. adductor pollicis and abductor pollicis longus c. adductor pollicis, flexor pollicis longus and brevis d. abductor pollicis longus, extensor pollicis longus and brevis

These ligaments provide stability in the distal forearm during pronation and supination:

a. intercarpal b. radial collateral c. volar and dorsal radioulnar d. palmar and dorsal radiocarpal

Flexor digitorum superficialis and profundus each have four thin tendons that pass through which sheath of connective tissue?

a. interosseous membrane b. Tunnel of Guyon c. carpal tunnel d. bicipital aponeurosis

When splinting the hand to immobilize after an injury or surgery, which position is often preferred to prevent adaptive shortening and contractures of the joints of the fingers?

a. intrinsic minus b. intrinsic plus c. cylindrical d. claw hand

Which bony landmark serves as an attachment site for the tendons of the wrist and hand flexors?

a. lateral supracondylar ridge b. lateral epicondyle c. medial epicondyle d. head of the radius

Which is the origin of the extensor digitorum?

a. lateral supracondylar ridge of the humerus b.common extensor tendon from medial epicondyle of the humerus c.common extensor tendon from lateral epicondyle of the humerus d. medial supracondylar ridge of the humerus

Distal and radial to the pisiform lies which carpal bone whose distinguishing feature is a hook-shaped protuberance?

a. lunate b. pisiform c. scaphoid d. hamate

Which of the following is an action of the flexor carpi ulnaris?

a. may extend the elbow b. assist with supination of forearm c. radially deviate the wrist d. ulnarly deviate the wrist

Which is the origin of the extensor carpi radialis longus?

a. medial condyle of the humerus b. medial supracondylar ridge of the humerus c. medial epicondyle of the humerus d.distal one-third of the lateral supracondylar ridge of the humerus

In general, the origin of the extensor group can be found on or near which bony landmark?

a. medial epicondyle b. head of the radius c. lateral epicondyle d. head of the ulna

The common flexor tendon attaches to which bony landmark?

a. medial epicondyle of the humerus b. lateral epicondyle of the humerus c. lateral supracondylar ridge of the humerus d. olecranon process

Which of the following is a part of the origin of the flexor digitorum superficialis?

a. medial epicondyle of the humerus b.anterior and medial surfaces of proximal three-quarters of ulna c. common flexor tendon from medial epicondyle of humerus d.posterior and lateral surfaces of proximal three-quarters of ulna

Which is the origin of the extensor carpi radialis brevis?

a. medial epicondyle of the humerus b.common extensor tendon from the lateral epicondyle of the humerus c. medial condyle of the humerus d. medial supracondylar ridge of the humerus

Which of these is considered the most functionally limiting impairment?

a. median motor and sensory impairment b. radial motor impairment c. ulnar motor impairment d. radial motor and sensory impairment

What is the anatomical name of the finger bones?

a. metacarpals b. phalanges c. carpals d. hamates

Which aspect of the hand is designed for fine motor control?

a. palmar b. ulnar c. volar d. radial

Which muscle's primary task is extension of the second, or "index," finger?

a. palmaris longus b. extensor carpi ulnaris c. extensor indicis d. extensor digitorum

Which is the insertion of the extensor carpi ulnaris?

a. pisiform b. base of fifth metacarpal c. base of second metacarpal d. ulnar styloid

Which is the insertion of the flexor carpi radialis?

a. pisiform b. bases of second and third metacarpals c. shafts of second, third, and fourth metacarpals d. bases of third and fourth metacarpals

Which band of connective tissue passes from side to side across the volar surface of the carpus?

a. pisohamate ligament b. flexor retinaculum c. radial collateral ligament d. palmar radiocarpal ligament

Which is the origin of the palmaris longus?

a. posterior surface of distal half of ulnar shaft b. common flexor tendon from medial epicondyle of humerus c. common flexor tendon from lateral epicondyle of humerus d. anterior surface of proximal half of ulnar shaft

Which of the following is an action of the flexor digitorum superficialis?

a. pronate the forearm b. flex the 1st and 2nd fingers c. flex the 2nd - 5th fingers d. flex the thumb

Which of the following is an action of the extensor carpi radialis brevis?

a. pronate the forearm b. flex the wrist c. assist to flex the elbow d. adduct the wrist

Which is the insertion of the extensor carpi radialis longus?

a. proximal phalanx of second finger b. base of second metacarpal c. distal phalanx of first finger d. base of first metacarpal

Which bone of the forearm runs the length of the medial side of the forearm and narrows as it moves toward the wrist?

a. radius b. ulna c. metacarpal d. humerus

The interphalangeals are what type of joints?

a. saddle b. gliding c. ellipsoid d. hinge

The extensor digitorum creates movement at which fingers?

a. second through fifth b. second and third c. first through fifth d. fourth and fifth

Which is the insertion of the flexor digitorum superficialis?

a. sides of proximal phalanges of 2nd - 5th fingers b. sides of middle phalanges of 3rd and 4th fingers c. sides of middle phalanges of 2nd -5th fingers d. sides of distal phalanges of 2nd - 5th fingers

Which bony landmark acts as a pulley for the extensor pollicis longus tendon?

a. styloid process of the ulna b. styloid process of the radius c. head of the ulna d. Lister's tubercle

The ulnocarpal complex is made up of the distal ulna, lunate, and ________:

a. trapezium b. pisiform c. triquetrum d. scaphoid

Which carpal forms the floor of the "anatomical snuffbox"?

a. trapezium b. scaphoid c. capitate d. lunate

Which irregular-shaped bones are located between the distal radius and ulna and the metacarpals of the hand?

a. ulna b. radius c. carpals d. metacarpals

Which of the following is an action of the extensor carpi radialis longus?

a. ulnarly deviate the wrist b. assist in extension of elbow c. pronate the forearm d. radially deviate the wrist

Which of the following is an action of the extensor carpi ulnaris?

a. ulnarly deviate the wrist b. tighten palmar fascia c. flex the wrist d. radially deviate the wrist

All global wrist motions involve which two joints?

a. ulnocarpal and radiocarpal b. radiocarpal and midcarpal c. intercarpal and midcarpal d. radiocarpal and intercarpal

This structure acts as a cushion between the distal ulna and carpals and contributes to stability on the ulnar aspect of the wrist:

a. ulnocarpal complex b. intermetacarpal ligament c. volar plate d. triangular fibrocartilage complex

Which is the origin of the flexor digitorum profundus?

a.anterior and medial surfaces of proximal three-quarters of ulna b.posterior and lateral surfaces of proximal three-quarters of ulna c. lateral epicondyle of the humerus d. medial epicondyle of the humerus

Which is the insertion of the extensor indicis?

a.tendon of the extensor carpi radialis longus at the level of the second metacarpal b.tendon of the extensor digitorum at the level of the second metacarpal c.tendon of the extensor digitorum at the level of the fifth metacarpal d.tendon of the extensor carpi ulnaris at the level of the second metacarpal