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CM MSK Anatomy > Forearm > Flashcards

Forearm Flashcards

1
Q

Name the superficial anterior forearm muscles

A 
Pronator teres
Palmaris longus
Flexor calpi radialis
Flexor clapi ulnaris 
Flexor digitorum superficialis
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2
Q

Name the deep anterior forearm muscles

A

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

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3
Q

What are all anterior forearm muscles innervated by?

A

Median nerve

Deep layer median nerve (anterior interosseous)

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4
Q

The flexor digitorum profundus has a medial and lateral part, what are these parts innervated by?

A

Medial - ulnar nerve

Lateral - median nerve

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5
Q

What is the arterial supply to the deep muscles of the anterior forearm?

A

Anterior interosseous artery

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6
Q

Pronator quadratus

A

Pronates forearm

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7
Q

Flexor pollicis longus

A

Flexes phalanges of thumb

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8
Q

Flexor digitorum profundus

A

Flexes distal phalanges of medial 4 digits, assists with flexion of hand at wrist

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9
Q

Flexor calpri radialis

A

Flexes and abducts hand at wrist

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10
Q

Flexor carpi ulnaris

A

Flexes and adducts hand at wrist

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11
Q

Pronoator teres

A

Pronates forearm and assists with elbow flexion

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12
Q

Palmaris longus

A

Flexes hand at wrist and tenses palmar aponeurosis

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13
Q

Flexor digitorum superficialis

A

Flexes middle and proximal phalanges of medial 4 digits, flexes hand at wrist

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14
Q

Attachment of pronator quadratus

A

Distal 4th of anterior ulna to distal 4th of anterior radius

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15
Q

What muscle of the anterior forearm has 2 heads?

A

Pronator teres

Flexor digitorum superficialis

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16
Q

Attachment of pronator teres

A

Medial epicondyle of humerus and coronoid process of ulna TO midway along lateral surface of radius

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17
Q

Attachment of palmaris longus

A

Medial epicondyle of humerus to distal half of flexor retinaculum and palmar aponeurosis

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18
Q

Attachment of flexor calpi radials

A

Medial epicondyle of humerus to base of 2nd metacarpal

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19
Q

Attachment of flexor carpi ulnaris

A

Humeral ulnar head - medial epicondyle of humerus and coronoid process of ulnar
Radial head - superior half of anterior radials
TO - bodies of middling phalanges of medial 4 digits

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20
Q

Attachment of flexor digitorum profundus

A

Medial and anterior surface of proximal 3/4 of ulna and interosseous membrane to palmar base of digital phalanges of medial 4 digits

21
Q

Attachment of flexor pollicis longus

A

Anterior surface of radius and interosseous membrane to palmar base of distal phalanx of thumb

22
Q

Name the superficial muscles of the posterior forearm

A

Extensor: digitorum, carpi ulnaris, digiti minimi, carpi radialis brevis, carpi radialis longus
Brachioradialis

23
Q

What is the innervation of the superficial muscles of the posterior forearm?

A

Radial nerve

Extensor carpi radialis brevis (deep branch of radial nerve)

24
Q

Name the deep muscles of the posterior forearm

A 
Supinator
Abductor pollicis longus
Extensor pollicis brevis
Extensor pollicis longus
Extensor indices
25
Q

What is the innervation to the deep muscles of the posterior forearm?

A

Radial nerve

26
Q

What is the arteries supply to the deep muscles of the posterior forearm?

A

Posterior interisseous artery

27
Q

What is the arterial supply to the supinator?

A

Radial recurrent artery and posterior interosseous artery

28
Q

Action of the supinator

A

Supinates forearm

29
Q

Action of the extensor carpi radialis bravis and extensor carpi radialis longus

A

Extends and abducts hand at wrist

30
Q

Action of extensor carpi ulnaris

A

Extends and adducts hand at wrist

31
Q

Action of extensor digits minimi

A

Extends 5th digit

32
Q

Action of extensor digitorum

A

Extends medial four digits and assists in wrist extension

33
Q

Action of brachioradialis

A

Weak flexion of forearm when forearm is in midprone

34
Q

Action of abductor pollicis longus

A

Abducts and extends thumb at carpometacarpal joint

35
Q

Action of extensor pollicis brevis

A

Extends proximal phalanx of thumb and CMC joint

36
Q

Action of extensor pollicis longus

A

Extends distal phalanx of thumb at interphalangeal and metacarpophalangeal joints

37
Q

Action of extensor inidicis

A

Extends 2nd digit and helps extend the hand at the wrist

38
Q

Attachment of extensor digitorum

A

Lateral epicondyle of humerus to extensor expansion of medial 4 digits

39
Q

Attachment of extensor carpi ulnaris

A

Lateral epicondyle of humerus and posterior border of ulna to dorsal base of 5th metacarpal

40
Q

Attachment of extensor digiti minimi

A

Lateral epicondyle of humerus to extensor expansion of 5th digit

41
Q

Attachment of extensor carpi radialis brevis

A

Lateral epicondyle of humerus to dorsal base of 3rd metacarpal and slip to 2rd metacarpal

42
Q

Attachment of extensor carpi radialis longus

A

Distal third of lateral supracondylar ridge of humerus to dorsal base of 2nd metacarpal and slip to 3rd metacarpal

43
Q

Attachment of brachioradialis

A

Proximal 2/3 of lateral supracondylar ridge of humerus to lateral side of distal end of radius

44
Q

Attachment of supinator

A

Lateral epicondyle of humerus, supinator crest of ulna to lateral, posterior and anterior surfaces of proximal third of radius

45
Q

Attachment of abductor pollicis longus

A

Posterior surface of ulna, radius and interosseous membrane to base of 1st metacarpal

46
Q

Attachment of extensor pollicis brevis

A

Posterior surface of radius and interosseous membrane to dorsal base of proximal phalanx of thumb

47
Q

Attachment of extensor pollicis longus

A

Posterior surface of middle third of ulna, interosseous membrane to dorsal base of distal phalanx of thumb

48
Q

Attachment of extensor indicis

A

Posterior surface of ulna, interosseous membrane to extensor expansion of 2nd digit

CM MSK Anatomy (10 decks)

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