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Muscles of back/upper extremity > Forearm - anterior compartment > Flashcards

Forearm - anterior compartment Flashcards

1
Q

Anterior/flexor/pronator compartment of forearm -

superficial

A

pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris

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2
Q

Anterior/flexor/pronator compartment of forearm -

intermediate

A

flexor digitorum superficialis

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3
Q

Anterior/flexor/pronator compartment of forearm -

deep

A

flexor digitorum profundus
flexor pollicis longus
pronator quadratus

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4
Q

Attachments of pronator teres

A

Proximal: humeral head @ medial epicondyle of humerus / ulnar head @ coronoid process
Distal: lateral surface of radius

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5
Q

Actions of pronator teres

A

pronates forearm and flexes it at elbow

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6
Q

Innervation of pronator teres

A

median nerve (C6, C7)

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7
Q

Attachments of flexor carpi radialis

A

Proximal: medial epicondyle of humerus
Distal: base of 2nd metacarpal

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8
Q

Actions of flexor carpi radialis

A

weakly flexes and abducts hand at wrist

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9
Q

Innervation of flexor carpi radialis

A

median nerve (C6, C7)

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10
Q

Attachments of palmaris longus

A

Proximal: medial epicondyle of humerus
Distal: distal half of flexor retinaculum of hand and palmar aponeurosis

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11
Q

Actions of palmaris longus

A

flexes hand at wrist, tenses palmar aponeurosis

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12
Q

Innervation of palmaris longus

A

median nerve (C7, C8)

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13
Q

Attachments of flexor carpi ulnaris

A

Proximal: medial epicondyle of humerus, olecranon, and posterior border of ulna
Distal: pisiform bone, hook of hamate, 5th metacarpal

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14
Q

Actions of flexor carpi ulnaris

A

flexes and adducts hand at wrist

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15
Q

Innervation of flexor carpi ulnaris

A

ulnar nerve (C8)

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16
Q

Attachments of flexor digitorum superficialis

A

Proximal: medial epicondyle of humerus and superior half of anterior radius
Distal: middle phalanges of 2nd-5th digits

17
Q

Actions of flexor digitorum superficialis

A

flexes middle and proximal phalanges

18
Q

Innervation of flexor digitorum superficialis

A

median nerve (C7, C8, T1)

19
Q

Attachments of flexor digitorum profundus

A

Proximal: proximal 3/4 of medial and anterior ulna and interosseous membrane
Distal: radial side @ base of 2nd-3rd digits / ulnar side @ base of 4th-5th digits

20
Q

Actions of flexor digitorum profundus

A

flexes distal 2nd-5th phalanges

21
Q

Innervation of flexor digitorum profundus

A

radial side: anterior interosseous nerve (median, C8, T1)

ulnar side: ulnar nerve (C8-T1)

22
Q

Attachments of flexor pollicis longus

A

Proximal: anterior radius and interosseous membrane
Distal: base of distal phalanx of thumb (pollux)

23
Q

Actions of flexor pollicis longus

A

flexes thumb

24
Q

Innervation of flexor pollicis longus

A

anterior interosseous nerve (C8, T1)

25
Q

Attachments of pronator quadratus

A

Proximal: distal fourth of anterior ulna
Distal: distal fourth of anterior radius

26
Q

Actions of pronator quadratus

A

pronates forearm, binds ulna and radius

27
Q

Innervation of pronator quadratus

A

anterior interosseous nerve (C8, T1)

28
Q

Origin of flexor mass

A

medial epicondyle of humerus

Muscles of back/upper extremity (12 decks)

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