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Gross Anatomy Muscles > Anterior Arm/Forearm Muscles > Flashcards

Anterior Arm/Forearm Muscles Flashcards

1
Q

Brachialis

Origin

A

-Distal half of anterior surface of humerus

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2
Q

Brachialis

Insertion

A

-Coronoid process and tuberosity of the ulna

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3
Q

Brachialis

Innervation

A

-Musculocutaneous nerve (C5, C6) and radial nerve (C7)

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4
Q

Brachialis

Action

A

-Flexes elbow in all positions

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5
Q

Biceps Brachii Short Head

Origin

A

-coracoid process of scapula

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6
Q

Biceps Brachii Long Head

Origin

A

-supraglenoid tubercle of scapula

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7
Q

Biceps Brachii

Insertion

A
  • Radial tuberosity

- fascia of forearm via bicipital aponeurosis

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8
Q

Biceps Brachii

Innervatioin

A

-Musculocutaneous nerve (C5, C6)

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9
Q

Biceps Brachii

Action

A
  • Supinates forearm & flexes elbow

- Resists dislocation of glenohumeral joint

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10
Q

Pronator Teres Ulnar Hear

Origin

A

-coronoid process of ulna.

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11
Q

Pronator Teres

Insertion

A

-Lateral surface of radius.

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12
Q

Pronator Teres

Innervation

A

-Median nerve (C6, C7)

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13
Q

Pronator Teres

Action

A

-Pronates forearm and

flexes elbow

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14
Q

Pronator Teres Humeral Head

A

medial epicondyle of humerus (via common flexor tendon)

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15
Q

Flexor Carpi Redialis (FCR)

Origin

A

-Medial epicondyle of humerus (via common

flexor tendon)

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16
Q

Flexor Carpi Redialis (FCR)

Insertion

A

-Base of 2nd metacarpal

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17
Q

Flexor Carpi Redialis (FCR)

Innervation

A

-Median nerve (C6, C7)

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18
Q

Flexor Carpi Redialis (FCR)

Action

A
  • Flexes & radially deviates wrist

- Weakly flexes elbow

19
Q

Palmaris Longus

Origin

A

-Medial epicondyle of humerus (via common

flexor tendon)

20
Q

Palmaris Longus

Insertion

A

-Flexor retinaculum and palmar aponeurosis.

21
Q

Palmaris Longus

Innervation

A

-Median nerve (C7, C8)

22
Q

Palmaris Longus

Action

A
  • Tenses palmar aponeurosis

- Flexes wrist, weakly flexes elbow

23
Q

Flexor Carpi Ulnaris (FCU) Humeral Head

Origin

A

-medial epicondyle of humerus (via common flexor tendon)

24
Q

Flexor Carpi Ulnaris (FCU) Ulnar Head

Origin

A

-olecranon andposterior border of ulna

25
Q

Flexor Carpi Ulnaris (FCU)

Insertion

A

-Pisiform; hook of hamate; 5th metacarpal

26
Q

Flexor Carpi Ulnaris (FCU)

Innervation

A

-Ulnar nerve (C7, C8)

27
Q

Flexor Carpi Ulnaris (FCU)

Action

A
  • Flexes & ulnarly deviates wrist.

- Weakly flexes elbow

28
Q

Flexor Digitorum Superficialis (FDS) Huumeroulnar Head

Origin

A

-medial epicondyle (via common flexor tendon) & coronoid process of ulna

29
Q

Flexor Digitorum Superficialis (FDS) Radial Head

Origin

A

-anterior proximal radius

30
Q

Flexor Digitorum Superficialis (FDS)

Insertion

A

-Shafts of middle phalanges of 2nd-5th digits.

31
Q

Flexor Digitorum Superficialis (FDS)

Innervation

A

-Median nerve (C7, C8, T1)

32
Q

Flexor Digitorum Superficialis (FDS)

Action

A
  • Flexes PIP & MCP joints for 2nd – 5th digits
  • Flexes wrist
  • Weakly flexes elbow
33
Q

Flexor Digitorum Profundus (FDP)

Origin

A

-Proximal medial and anterior ulna; interosseous membrane.

34
Q

Flexor Digitorum Profundus (FDP)

Insertion

A

-Base of distal phalanges of 2nd-5th digits.

35
Q

Flexor Digitorum Profundus (FDP)

Innervation

A

-Medial part: Ulnar nerve (C8, T1)
-Lateral part: anterior interosseous nerve, from
median nerve (C8, T1)

36
Q

Flexor Digitorum Profundus (FDP)

Action

A
  • Flexes DIP, PIP & MCP joints for 2nd – 5th digits

- Flexes wrist

37
Q

Flexor Pollicis Longus (FPL)

Origin

A
  • Anterior surface of radius

- interosseous membrane

38
Q

Flexor Pollicis Longus (FPL)

Insertion

A

-Base of distal phalanx of the thumb

39
Q

Flexor Pollicis Longus (FPL)

Innervation

A

-Anterior interosseous nerve, from median nerve (C8, T1)

40
Q

Flexor Pollicis Longus (FPL)

Action

A
  • Flexes IP & MCP of 1st digit (thumb)

- Flexes wrist

41
Q

Pronator Quadratus

Origin

A

-Distal anterior ulna

42
Q

Pronator Quadratus

Insertion

A

-Distal anterior radius

43
Q

Pronator Quadratus

Innervation

A

-Anterior interosseous nerve, from median nerve (C8, T1)

44
Q

Pronator Quadratus

Action

A
  • Pronates forearm

- Stabilizes distal radioulnar joint

Gross Anatomy Muscles (12 decks)

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