The Forearm/Wrist/Hand Flashcards
1
Q
where do digitorum muscles connect to
A
fingers
2
Q
where do digiti minimi muscles connect to
A
little finger
3
Q
where do indicis muscles connect to
A
index finger
4
Q
where do pollicis muscles connect to
A
thumb
5
Q
where do carpi muscles connect to
A
wrist
6
Q
where do carpi radialis muscles connect to
A
radial deviation of wrist (abduction)
7
Q
where do carpi ulnaris muscles connect to
A
ulnar deviation of wrist (adduction)
8
Q
what flexors are in the deep layer of the forearm
A
- flexor pollicis longus
- flexor digitorum profundus
9
Q
where does the flexor pollicis longus originate and insert
A
- origin: anterior surface of radius and adjacent interosseous membrane of forearm
- insertion: palmar aspect of base of distal phalanx of thumb
10
Q
where does the flexor digitorum profundus originate and insert
A
- origin: medial aspect of coronoid process of ulna and superior three quarters of anterior and medial surfaces of body of ulna
- insertion: palmar aspects of bases of the distal phalanges of index, middle, ring and little fingers
11
Q
what flexors are in the intermediate layer of the forearm
A
- flexor digitorum superficialis
12
Q
where does the flexor digitorum superficialis originate and insert
A
- origin: medial epicondyle of humerus, via the common flexor tendon, sublime tubercle of ulna and proximal half of anterior border of radius
- insertion: palmar aspects of the bodies of middle phalanges of the index, middle, ring and little finger
13
Q
what flexors are in the superficial layer of the forearm
A
- flexor carpi radialis
- palmaris longus
- flexor carpi ulnaris
14
Q
where does flexor carpi radialis originate and insert
A
- origin: medial epicondyle of humerus, via common flexor tendon
- insertion: palmar aspects of bases of second and third metacarpal bones
15
Q
where does the palmaris longus originate and insert
A
- origin: medial epicondyle of humerus, via common flexor tendon
- insertion: palmar aponeurosis and flexor retinaculum of hand
16
Q
where does the flexor carpi ulnaris originate and insert
A
- origin: medial epicondyle of humerus via common flexor tendon, proximal two thirds of body of ulna and olecranon of ulna
- insertion: pisiform, hook of hamate and palmar aspect of base of fifth metacarpal bones
17
Q
what extensors are in the superficial layer
A
- extensor carpi radialis longus
- extensor carpi radialis brevis
- extensor digitorum
- extensor digiti minimi
- extensor carpi ulnaris
18
Q
where does extensor carpi radialis longus originate and insert
A
- origin: inferior one third of lateral supracondylar ridge of humerus
- insertion: dorsal aspect of base of second metacarpal bone
19
Q
where does extensor carpi radialis brevis originate and insert
A
- origin: lateral epicondyle of humerus, via common extensor tendon
- insertion: dorsal aspect of base of third metacarpal bone
20
Q
where does extensor digitorum originate and insert
A
- origin: lateral epicondyle of humerus via common extensor tendon
- insertion: dorsal aspects of bases of both the middle and distal phalanges of the index, middle, ring and ,little fingers
21
Q
where does extensor digiti minimi originate and insert
A
- origin: lateral epicondyle of humerus via common extensor tendon
- insertion: extensor expansion of little finger
22
Q
where does extensor carpi ulnaris originate and insert
A
- origin: lateral epicondyle of humerus, via common extensor tendon, and posterior border of ulna
- insertion: medial aspect of base of fifth metacarpal bone
23
Q
what extensors are in the deep layer
A
- extensor indicis
- extensor pollicis longus
- extensor pollicis brevis
- abductor pollicis longus
24
Q
where does the extensor indicis originate and insert
A
- origin: posterior surface of distal one third of ulna and adjacent interosseous membrane of forearm
- insertion: extensor expansion of index finger
25
where does extensor pollicis longus originate and insert
- origin: posterior surface of middle one third of ulna and adjacent interosseous membrane of forearm
- insertion: dorsal aspect of base of distal phalanx of thumb
26
where does extensor pollicis brevis originate and insert
- origin: posterior surface of distal half of radius and adjacent interosseous membrane of forearm
- insertion: dorsal aspect of base of proximal phalanx of thumb
27
where does abductor pollicis longus originate and insert
- origin: posterior aspects of proximal half of ulna and middle one third of radius adjacent interosseus membrane of forearm
- insertion: lateral aspect of base of first metacarpal bone
28
which muscles make up the thenar eminence
- abductor pollicis brevis
- flexor pollicis brevis
- opponens pollicis
29
which muscles make up the hypothenar eminences
- abductor digit minimi
- flexor digit minimi
- opponens digiti minimi
- palmaris brevis
30
what are all the finger muscles
- third palmar interosseous
- second palmar interosseous
- first palmar interosseous
- fourth dorsal interosseous
- third dorsal interosseous
- second dorsal interosseous
- first dorsal interosseous
- fourth lumbrical
- third lumbrical
- second lumbrical
- first lumbrical
31
what are the hands manipulation tasks
- non-contact / contact
- prehensile / non-prehensile
- no motion / motion
- motion within hand / motion not within hand
- motion at contact / no motion at contact
32
what are all the bones in the hand and wrist
- distal phalanges
- intermediate phalanges
- proximal phalanges
- metacarpals
- carpals
- scaphoid
- lunate
- triquetrum
- pisiform
- trapezium
- trapezoid
- capitate
- hamate
33
what is the carpal tunnel
- formed by transverse carpal ligament or flexor retinaculum
- between pisiform / hamate and trapezium / scaphoid
- pulley for long flexor tendons
- stabilises arch of wrist
34
what movements are possible at the wrist
- extension
- flexion
- radial deviation
- ulnar deviation
- pronation
- supination
35
what movements are possible at the thumb
- flexion
- extension
- abduction
- adduction
- opposition
36
what movements are possible at the fingers
- hyperextension
- extension
- flexion
- abduction
- adduction
- circumduction
- opposition
37
what are the different joints in the wrist and hand
- radiocarpal
- carpometacarpal
- metacarpophalangeal
- proximal interphalangeal
- distal interphalangeal
38
what joint type is radiocarpal and what movements are possible
- condyloid
- flexion / extension
- abduction / adduction
39
what type of joint is carpometacarpal and what movements are possible
- thumb (1st CMCJ)
- saddle
- flexion / extension
- abduction / adduction
- opposition
- fingers (2nd - 5th CMCJ)
- plane joints
- minimal amounts of movement
- flexion / extension
40
what type of joint is metacarpophalangeal and what movements are possible
- condyloid
- flexion / extension
- abduction / adduction
- circumduction
41
what type of joint is proximal interphalangeal and what movements are possible
- hinge joint
- flexion / extension
42
what type of joint is distal interphalangeal and what movements are possible
- hinge
- flexion / extension
