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RMT Term 1 > Lecture 8: Muscles Of The Forearm And Hand > Flashcards

Lecture 8: Muscles Of The Forearm And Hand Flashcards

(65 cards)

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1
Q

Name the muscles in the superficial anterior compartment of the forearm

A
  1. Pronator Teres (PT)
  2. Flexor Carpi Radialis (FCR)
  3. Palmaris Longus (PL)
  4. Flexor Carpi Ulnaris (FCU)
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2
Q

Origin of PT

A

Humeral Head:
Medial epicondyle

Ulnar Head:
Coronoid process

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3
Q

Origin of PT

A

Humeral Head:
Medial epicondyle

Ulnar Head:
Coronoid process

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4
Q

Insertion of PT

A

Midlat radial shaft (pronator tubercle)

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5
Q

Innervation of PT

A

Median n

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6
Q

Action of PT

A

Pronates forearm
Assists with elbow flexion

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7
Q

Origin of FCR

A

Common flexor tendon (medial epicondyle)

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8
Q

Insertion of FCR

A

Base of 2nd and 3rd MC (palmar surface)

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9
Q

Innervation of FCR

A

Median n

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10
Q

Action of FCR

A

Flexes and radially deviates (abduct) wrist

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11
Q

Which mm has origins in CFT / CFO

A

Flexor carpi radialis
Palmaris Longus
Flexor carpi ulnaris

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12
Q

Origin of PL

A

CFT

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13
Q

Insertion of PL

A

Palmar Carpal Ligament
Palmar aponeurosis

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14
Q

Innervation of Palmaris Longus

A

Median

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15
Q

Action of Palmaris Longus

A

Flexes wrist
Tightens aponeurosis

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16
Q

Origin of Flexor Carpi Ulnaris

A

CFT

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17
Q

Insertion of Flexor CU

A

Pisiform
Hook of Hamate
Base of 5th MC

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18
Q

Innervation of FCU

A

Ulnar n

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19
Q

Action of FCU

A

Flexes wrist
Ulnar deviation of wrist

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20
Q

Origin of Flexor digitorum superficialis

A

Humeroulnar head: med epicondyle and coronoid process

Radial head:
Oblique line of radius

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21
Q

Insertion of Flexor Digitorum Superficialis

A

Shaft of middle phalanges of digit 2-5.

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22
Q

Innervation of Flexor Digitorum Superficialis

A

Median nerve

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23
Q

Action of FDS

A

Flexes MCP and PIP’s finger 2-5

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24
Q

Muscles of deep compartment of ant forearm

A

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

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25
Origin of flexor Digitorum profundus
Proximal 2/3 of ant ulna and Interosseus membrane
26
Origin of flexor Digitorum profundus
Proximal 2/3 of ant ulna and Interosseus membrane
27
Insertion of FDP
Base of distal phalanges of digits 2-5
28
Innervation of FDP
Median and ulnar nerve
29
Action of FDP
Flexes DIP Assists PIP and wrist flexion
30
Origin of Flexor Pollicis Longus
Ant surface of radius & IO membrane
31
Insertion of Flexor Pollicis Longus
Base of distal phalanx of first digit
32
Innervation of FPL
Median nerve - IO branch
33
Action of FPL
Flexes IP and MCP thumb
34
Origin of Pronator Quadratus
Distal 1/4 of ant surface of ulna
35
Insertion of PQ
Distal 1/4 of ant surface of radius
36
Innervation of PQ
Median Nerve - IO branch
37
Action of PQ
Pronates forearm
38
Insertion of FDS
Shaft of middle phalanges digits 2-5
39
Action of FDS
Flexes MCP and PIP Assists wrist flexion
40
Name muscles of the post superficial comp of forearm
Brachioradialis Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis Extensor Digiti Minimi Extensor Carpi Ulnaris
41
Name mm originating in CET
ECRB ECU Extensor Digitorum Extensor Digiti Minimi
42
Origin of brachioradialis
Lateral supracondylar ridge and lateral intermuscular septum
43
Insertion of brachioradialis
Base of styloid process of radius
44
Innervation of brachioradialis
Radial nerve
45
Action of brachioradialis
Flexes elbow joint and rotates forearm to midprone position
46
Origin of extensor carpi radialis longus
Distal 1/3 of lateral supracondylar ridge
47
Insertions of extensor carpi radialus longus
Base of 2nd mc
48
Innervation of extensor carpi radialis longus
Radial nerve
49
Action of extensor carpi radialis longus
Extends and radially deviates wrist
50
Origin of extensor carpi radialis brevis
Lateral epicondyle via CET
51
Insertion of extensor carpi radialis brevis
Base of 3rd MC (dorsal and radial surface)
52
Innervation of ECRB
Radial nerve
53
Action of ECRB
Extends and abducts wrist
54
Origin of Extensor Digitorum
Lat epicondyle via CET
55
Insertion of Extensor Digitorum
Middle and distal phalanges of digits 2-5
56
Innervation of Extensor Digitorum
Deep Radial Nerve
57
Action of Extensor Digitorum
Extends MCP’s and PIP’s digits 2-5 Assists wrist extension
58
Origin of Extensor Digiti Minimi
CET
59
Insertion of Extensor Digiti Minimi
Tendon of extensor digitorum on 5th digit (extensor expansion or hood)
60
Innervation of Extensor Digiti Minimi
Deep Radial n
61
Action of Extensor Digiti Minimi
Extends 5th digit at MCP and IP joints
62
Origin of Extensor Carpi Ulnaris
CET
63
Extensor Carpi Ulnaris Insertion
Base of 5th MC ( ulnar surface)
64
Innervation of Extensor Carpi Ulnaris
Deep Radial Nerve
65
Action of extensor carpi ulnaris
Extends and adducts wrist

RMT Term 1 (6 decks)

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