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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
Flexor Carpi Ulnaris (FCU) | Insertion
-Pisiform; hook of hamate; 5th metacarpal
26
Flexor Carpi Ulnaris (FCU) | Innervation
-Ulnar nerve (C7, C8)
27
Flexor Carpi Ulnaris (FCU) | Action
- Flexes & ulnarly deviates wrist. | - Weakly flexes elbow
28
Flexor Digitorum Superficialis (FDS) Huumeroulnar Head | Origin
-medial epicondyle (via common flexor tendon) & coronoid process of ulna
29
Flexor Digitorum Superficialis (FDS) Radial Head | Origin
-anterior proximal radius
30
Flexor Digitorum Superficialis (FDS) | Insertion
-Shafts of middle phalanges of 2nd-5th digits.
31
Flexor Digitorum Superficialis (FDS) | Innervation
-Median nerve (C7, C8, T1)
32
Flexor Digitorum Superficialis (FDS) | Action
- Flexes PIP & MCP joints for 2nd – 5th digits - Flexes wrist - Weakly flexes elbow
33
Flexor Digitorum Profundus (FDP) | Origin
-Proximal medial and anterior ulna; interosseous membrane.
34
Flexor Digitorum Profundus (FDP) | Insertion
-Base of distal phalanges of 2nd-5th digits.
35
Flexor Digitorum Profundus (FDP) | Innervation
-Medial part: Ulnar nerve (C8, T1) -Lateral part: anterior interosseous nerve, from median nerve (C8, T1)
36
Flexor Digitorum Profundus (FDP) | Action
- Flexes DIP, PIP & MCP joints for 2nd – 5th digits | - Flexes wrist
37
Flexor Pollicis Longus (FPL) | Origin
- Anterior surface of radius | - interosseous membrane
38
Flexor Pollicis Longus (FPL) | Insertion
-Base of distal phalanx of the thumb
39
Flexor Pollicis Longus (FPL) | Innervation
-Anterior interosseous nerve, from median nerve (C8, T1)
40
Flexor Pollicis Longus (FPL) | Action
- Flexes IP & MCP of 1st digit (thumb) | - Flexes wrist
41
Pronator Quadratus | Origin
-Distal anterior ulna
42
Pronator Quadratus | Insertion
-Distal anterior radius
43
Pronator Quadratus | Innervation
-Anterior interosseous nerve, from median nerve (C8, T1)
44
Pronator Quadratus | Action
- Pronates forearm | - Stabilizes distal radioulnar joint

Gross Anatomy Muscles (12 decks)

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