Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Origins and Insertions > Wrist > Flashcards

Wrist Flashcards

1
Q

Lumbricles

A

Origin - tendon of profundus

Insertion - lateral side of extensor apparatus of corresponding finger

Action - extension of DIPs and PIPs, flexion of MCPs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Radial collateral carpal ligament

A

Origin - radial styloid

Insertion - scaphoid tuberosity

Action - limits ulna deviation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

abductor digiti minimi

A

Origin – pisiform and ulnar border of flexor retinaculum
Insertion – base of proximal phalanx of little finger
Action – abduction of MCP joint of little finger

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

flexor carpi ulnaris

A

Origin - humeral head: common flexor tendon, ulnar head: medial aspect of olecranon and upper 2/3 of ulna

Insertion - pisiform, hook of hamate and 5th metacarpal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Extensor Indicis

A

Origin - junction of the middle and distal 1/3s of the ulna

Insertion - extensor apparatus of the index finger

Action - extension of DIP, PIP and MCP of index finger

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

extensor digiti minimi

A

Origin - lateral epicondyle via common extensor tendon

Insertion - extensor apparatus of the little finger

Action - extension of DIP, PIP, and MCP of little finger

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

flexor pollicis longus

A

Origin - Longus: posterio lateral aspect of middle 1/3 of ulna and interosseous membrane

Insertion - Longus: base of the distal phalanx of the thumb

Action - Longus: Extension of DIP, assists extension of MCP and CMC of thumb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

flexor pollicis brevis

A

Origin - radius and interosseous membrane below APL

Insertion - dorsal aspect of base of the proximal phalanx of thumb

Action - Extension at 1st MCP joint, assist extension and abduction at CMC joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Ulnar collateral carpal ligament

A

Origin - ulna styloid

Insertion - palmer: pisiform, dorsal: triquetrum

Action - limits radial deviation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

abductor pollicis longus

A

Origin - posterior aspects of the radius, ulna and interosseous membrane

Insertion - radial aspect of base of first metacarpal

Action - abduction and extension of the thumb at 1stCMC joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

flexor digitorum profundus

A

Origin - upper ¾ of the medial and anterior aspects of the ulna and attached interosseous membrane

Insertion - palmar aspects of bases of distal phalanges of index, middle, ring and little fingers

Action - sole flexor of DIPs, assists flexion or PIP, MCP and wrist joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Opponens Digiti Minimi

A

Origin - hook of hamate and ulnar border of flexor retinaculum

Insertion - ulnar border of the 5th metacarpal

Action - flexion and rotation of 5thCMC joint: opposition of little finger

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Extensor carpi ulnaris

A

Origin - lateral eicondyle via common extensor tendon

Insertion - dorsoulnar aspect of base of 5th metacarpal

Action - extension and ulnar deviation of the wrist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Flexor digitorum superficialis

A

Origin - common flexor tendon and anterior part of ulnar collateral ligament
Insertion - palmar aspects of the shafts of the middle phalanges
Action - primarily flexor of the PIPs, assists flexion of MCP and wrist joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Dorsal interssei

A

Origin - adjacent sides of metacarpal bones

Insertion - radial side of proximal phalanx of 3nd and 3rd digits, ulnar side proximal phalanx of 3rd and 4thdigits

Action - abduction of fingers at MCP joint relative to middle finger

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Flexor Carpi Radialis

A

Origin - medial epicondyle of the humerus via the common flexor tendon

Insertion - palmar aspect of the base of the second metacarpal

Action - flexion and radial deviation of the wrist

17
Q

abductor pollicis brevis

A

Origin - flexor retinaculum; tubercles of scaphoid and trapezium

Insertion - radial aspect of the base of proximal phalanx of the thumb and the extensor apparatus of the thumb

Action - abduction of CMC and MCP joints of thumb, assists thumb opposition

18
Q

palmer interossei

A

Origin - ulnar and palmar surfaces of 2nd metacarpal, radial side of 4th and 5th metacarpals
Insertion - extensor apparatus, ulnar aspect on 2nd digit, radial on 4th and 5th digits
Action - adduction of fingers at MCP joint relative to middle finger

19
Q

Extensor digitorum

A

Origin - lateral epicondyle of the humerus via the common extensor tendon

Insertion - bases of middle and distal phalanges of fingers via the dorsal digital expansion

Action - extension of DIPs, PIPs, MCPs, assists wrist extension

20
Q

Flexor digiti minimi brevis

A

Origin - hook of hamate and ulnar border of flexor retinaculum

Insertion - ulnar aspect of base of proximal phalanx of little finger

Action - flexion of MCP joint and opposition of little finger

21
Q

Oppenens Pollicis

A

Origin - flexor retinaculum and tubercle of trapezium

Insertion - palmar aspect of radial border of 1st metacarpal

Action - flexion, abduction and medial rotation of the 1stCMC joint: opposition of thumb

22
Q

Extensor carpi radialis (longus and brevis)

A

Origin - brevis: lateral epicondyle of humerus via common extensor tendon, longus: distal 1/3 of lateral supracondylar ridge of the humerus

Insertion - brevis: dorsal aspect of base of 3rd metacarpal, longus: posterior aspect of base of 2nd metacarpal

Action - extension and radial deviation of the wrist

23
Q

extensor pollicis longus and brevis

A

Origin - Longus: posterio lateral aspect of middle 1/3 of ulna and interosseous membrane, Brevis: radius and interosseous membrane below APL
Insertion - Longus: base of the distal phalanx of the thumb, Brevis: dorsal aspect of base of the proximal phalanx of thumb
Action - Longus: Extension of DIP, assists extension of MCP and CMC of thumb, Brevis: Extension at 1st MCP joint, assist extension and abduction at CMC joint

24
Q

Adductor pollicis brebis oblique and transverse heads

A

Origin - palmar aspect of bases of 2nd and 3rd metacarpals and adjacent carpal bones palmer surface of 3rd metacarpal

Insertion - ulnar side of the base of the proximal phalanx of the thumb

Action - adducts CMP and MCP joints of thumb, assists MCP flexion

Origins and Insertions (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions