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Anatomy HK*3401 > Anterior Forearm > Flashcards

Anterior Forearm Flashcards

1
Q

What are the superficial muscles

A

Pronator Teres (PT)
Flexor Carpi Radialis (FCR)
Palmaris Longus (PL)
Flexor Carpi Ulnaris (FCU)

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2
Q

Proximal attachment(s) - superficial muscles

A

Medial epicondyle of humerus

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3
Q

Distal attachment(s) - superficial muscles

A

Pronator teres - Proximal radius (middle 1/3)

Distal to the wrist:

Flexor Carpi Radialis - base metacarpal 2

Palmaris longus - palmar aponeurosis

Flexor carpi ulnaris - base metacarpal 5

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4
Q

Actions - superficial muscles

A

Flexion at each joint proximal to insertion
FCR - abduction at wrist
FCU - adduction at wrist
PT - pronation of forearm

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5
Q

Innervation - superficial muscles

A

Median nerve - PT, FCR, PL
Ulnar nerve - FCU

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6
Q

Intermediate muscle(s)

A

Flexor Digitorum superficialis (FDS)

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7
Q

Deep Muscle(s)

A

Flexor pollicis longus (FPL)
Flexor digitorum profundus (FDP)
Pronator quadratus (PQ)

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8
Q

Attachments Flexor digitorum superficialis

A

Proximal - Medial epicondyle of humerus, ulna and forearm

Distal - Middle phalanges of digits 2 -5

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9
Q

Action Flexor digitorum superficialis

A

Flexion at every joint proximal to insertion

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10
Q

Proximal attachments of FDP and FPL (deep muscles)

A

(diagonal line):

ulna (FDP)
interosseous membrane
radius (FPL)

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11
Q

Distal attachments of FDP and FPL (deep muscles)

A

Distal phalanges
Digits 2-5: FDP
Digits 1: FPL

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12
Q

Attachments of pronator quadratus

A

Distal ulna to distal radius

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13
Q

Innervation of flexor digitorum superficialis

A

Median nerve

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14
Q

Innervation of deep muscles

A

FPL - Anterior interosseous n (branch of median n.)
FDP- 1/2 ulnar n. , 1/2 median n.
PQ - Anterior interosseous n (branch of median n.)

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15
Q

Boundaries of Cubital fossa

A

Superior - line between medial and lateral epicondyles

Medial - pronator teres

Lateral - Brachioradialis

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16
Q

Floor of cubital fossa

A

Brachialis
Supinator muscles

17
Q

Roof of cubital fossa

A

Skin
Fascia

18
Q

What is contained in cubital fossa (Other than muscles)

A

Median nerve
Radial nerve - superficial and deep branches
Bifurcation of brachial artery
Tendon of biceps brachii muscle

19
Q

What muscles does the proximal branch of the median nerve innervate

A

Superficial muscles - PT, FCR, PL

Intermediate muscles - FDS

20
Q

What muscles does the anterior interosseous nerve innervate

A

Deep distal muscles: 1/2 FDP, FPL, PQ

Anatomy HK*3401 (7 decks)

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