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List of Muscles > Upper Extremity > Flashcards

Upper Extremity Flashcards

(45 cards)

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1
Q

Abductor Digiti Minimi (Hand) (somewhere else)

A

Origin: Pisiform bone and Tendon of flexor carpi ulnaris
Insertion: Ulnar side of the base of the proximal phalanx of 5th digit and Aponeurosis of the extensor digiti minimi
Peripheral Nerve: Ulnar Nerve
Nerve Root: C8-T1
Function: Abduction and Flexion of the 5th MCP joint

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2
Q

Abductor Pollicis Brevis (somewhere else)

A

Origin: Flexor retinaculum, Scaphoid, and Trapezium
Insertion: Radiale side of the base of the proximal phalanx of the thumb
Peripheral Nerve: Median Nerve
Nerve Root: C8-T1
Function: Abduction of the CMC and MCP joints of the thumb

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3
Q

Abductor Pollicis Longus (somewhere else)

A

Origin: Posterior surfaces of the ulna and radius and Interosseus membrane
Insertion: Radial side of the base of the first metacarpal bone
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C7
Function: Abduction and Extension of the CMC joint of the thumb and Assists in Abduction (radial deviation) and Flexion of the wrist

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4
Q

Adductor Pollicis (somewhere else)

A

Origin: Oblique Head- Capitate, Trapezoid, Trapezium, and Metacarpals 1-4
Transverse Head- Palmar surface of the 3rd metacarpal bone
Insertion: Ulnar side of the base of the proximal phalanx of the thumb
Peripheral Nerve: Ulnar Nerve
Nerve Root: C8-T1
Function: Adduction of the thumb

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5
Q

Anconeus (somewhere else)

A

Origin: Lateral epicondyle of the humerus
Insertion: Lateral surface of the olecranon and Superior one-fourth of the posterior aspect of the ulna
Peripheral Nerve: Radial Nerve
Nerve Root: C7-C8
Function: Assists in Extending the elbow

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6
Q

Biceps Brachii (somewhere else)

A

Origin: Short Head- Coracoid process of the scapula
Long head- Supraglenoid tuberosity of the scapula
Insertion: Tuberosity of the Radius
Peripheral Nerve: Musculocutaneous Nerve
Nerve Root: C5-C6
Function: Flexion of the elbow (palm up), Supination of the forearm, and assists in Flexion of the shoulder

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7
Q

Brachialis (somewhere else)

A

Origin: Distal half of the anterior aspect of the humeral shaft and Medial and Lateral intermuscular septa
Insertion: Tuberosity and Coronoid process of the ulna
Peripheral Nerve: Musculocutaneous Nerve
Nerve Root: C5-C6
Function: Flexion of the elbow (palm down)

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8
Q

Brachioradialis (somewhere else)

A

Origin: Upper two-thirds of the lateral Supercondylar ridge of the humerus and Lateral intermuscular septa
Insertion: Styloid process of the radius
Peripheral Nerve: Radial Nerve
Nerve Root: C5-C6
Function: Flexion of the elbow (forearm neutral)

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9
Q

Coracobrachialis (somewhere else)

A

Origin: Coracoid process of the scapula
Insertion: Medial aspect of the middle third of the shaft of the humerus
Peripheral Nerve: Musculocutaneous Nerve
Nerve Root: C6-C7
Function: Flexion and adduction of the shoulder joint

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10
Q

Deltoid (somewhere else)

A

ANTERIOR
Origin: Anterosuperior aspect of the lateral half of the clavicle
Insertion: Deltoid tuberosity of the humerus
Peripheral Nerve: Axillary Nerve
Nerve Root: C5-C6
Function: Flexion of the Shoulder joint

MIDDLE
Origin: Acromion process of the scapula
Insertion: Deltoid tuberosity of the humerus
Peripheral Nerve: Axillary Nerve
Nerve Root: C5-C6
Function: Abduction of the Shoulder

POSTERIOR
Origin: Inferior Aspect of the spine of the scapula
Insertion: Deltoid tuberosity of the humerus
Peripheral Nerve: Axillary Nerve
Nerve Root: C5-C6
Function: Extension of the shoulder

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11
Q

Dorsal Interossei (somewhere else)

A

Origin: By two heads from adjacent metacarpal bones
Insertion: Radial side of the proximal phalanxes and the extensor hoods of the 2nd and 3rd digit and Ulnar side of the proximal phalanx and extensor hood of the 4th digit
Peripheral Nerve: Ulnar Nerve
Nerve Root: C8-T1
Function: Abduction and Flexion of MCP joints 2, 3, 4 and Extension of the PIP and DIP joints of digits 2, 3, 4

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12
Q

Extensor Carpi Radialis Brevis (somewhere else)

A

Origin: Lateral epicondyle of the humerus, Common extensor tendon, and Radial collateral ligament of the elbow
Insertion: Base of the third metacarpal bone
Peripheral Nerve: Radial Nerve
Nerve Root: C6-C7
Function: Extension and Abduction (radial deviation) of the wrist

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13
Q

Extensor Carpi Radialis Longus (somewhere else)

A

Origin: Lateral supracondylar ridge of the humerus and the common extensor tendon
Insertion: Base of the second metacarpal bone
Peripheral Nerve: Radial Nerve
Nerve Root: C6-C7
Function: Extension and Abduction (radial deviation) of the wrist and Assists in Extension of the elbow

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14
Q

Extensor Carpi Ulnaris (somewhere else)

A

Origin: Lateral epicondyle of the humerus via the common extensor tendon and the Dorsal border of the ulna
Insertion: Base of the fifth metacarpal
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C8
Function: Extension and Adduction (ulnar deviation) of the wrist

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15
Q

Extensor Digiti Minimi (Hand) (somewhere else)

A

Origin: Lateral epicondyle of the humerus via the common extensor tendon and Intermuscular septum
Insertion: Extensor hood on the dorsum of the proximal phalanx of digit 5
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C8
Function: Extension of digit 5 and Assists in Extension of the wrist

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16
Q

Extensor Digitorum (Hand) (somewhere else)

A

Origin: Lateral epicondyle of the humerus via the common extensor tendon and Antebrachial fascia
Insertion: Middle and distal phalanges of digits 2-5 via the extensor hood
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C8
Function: Extension of digits 2-5 and Assists in Extension of the wrist

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17
Q

Extensor Indicis (somewhere else)

A

Origin: Posterior surface of the ulna and Interosseus membrane
Insertion: Extensor hood of the index finger
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C8
Function: Extension of the index finger and Assists in Extension of the wrist

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18
Q

Extensor Pollicis Brevis (somewhere else)

A

Origin: Posterior aspect of the radius and Interosseus membrane
Insertion: Base of the proximal phalanx of the thumb
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C7
Function: Extension of the MCP and Carpometacarpal (CMC) joints of the thumb

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19
Q

Extensor Pollicis Longus (somewhere else)

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A

Origin: Dorsolateral surface of the ulna and Interosseus membrane
Insertion: Base of the distal phalanx of the thumb
Peripheral Nerve: Deep Radial Nerve
Nerve Root: C6-C8
Function: Extension of the IP joint of the thumb and Assists in Extension of the MCP and CMC joints of the thumb

20
Q

Flexor Carpi Radialis (somewhere else)

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A

Origin: Medial epicondyle of the humerus via the common forearm flexor tendon and the Antebrachial fascia
Insertion: Base of the second and third metacarpals
Peripheral Nerve: Median Nerve
Nerve Root: C6-C7
Function: Flexion and Abduction (radial deviation) of the wrist

21
Q

Flexor Carpi Ulnaris (somewhere else)

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A

Origin: Humeral Head- Medial epicondyle of the humerus via the common forearm flexor tendon
Ulnar Head- Upper two-thirds of the posterior border of the ulna
Insertion: Pisiform bone
Peripheral Nerve: Ulnar Nerve
Nerve Root: C8-T1
Function: Flexion and Adduction (ulnar deviation) of the wrist

22
Q

Flexor Digiti Minimi Brevis

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A

Origin: Flexor Retinaculum and hook of hamate bone
Insertion: Medial side of base of proximal phalanx of little finger
Peripheral Nerve:
Nerve Root:
Function:

23
Q

Flexor Digitorum Profundus (Hand) (somewhere else)

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A

Origin: Upper three-fourths of the ulna, Coronoid process of the ulna, and Interosseus membrane
Insertion: Base of the DIP of digits 2-5
Peripheral Nerve: Median and Ulnar Nerves
Nerve Root: C8-T1
Function: Flexion of the DIP joints of digits 2-5 and Assists in Flexion of the PIP and MCP joints of the digits

24
Q

Flexor Digitorum Superficialis (Hand) (somewhere else)

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A

Origin: Humeroulnar Head- Medial epicondyle of the humerus via the common flexor tendon, Ulnar collateral ligament of the elbow, and Coronoid process of the ulna
Radial Head- Anterior surface of the radius
Insertion: Via two slips into the sides of the middle phalanxes of digits 2-5
Peripheral Nerve: Median Nerve
Nerve Root: C7-T1
Function: Flexion of the PIP joints of digits 2-5 and Assists in Flexion of the MCP joints of the digits 2-5 and the wrist

25
Flexor Pollicis Brevis (somewhere else)
Origin: Flexor retinaculum, Trapezium, Trapezoid, and Capitate bones Insertion: Radial side of the base of the proximal phalanx of the thumb Peripheral Nerve: Median and Ulnar Nerves Nerve Root: C8-T1 Function: Flexion of the MCP joint of the thumb
26
Flexor Pollicis Longus (somewhere else)
Origin: Anterior Aspect of the radius, Coronoid process of the ulna, and Interosseus membrane Insertion: Base of the distal phalanx of the thumb Peripheral Nerve: Anterior Interosseus (median) Nerve Nerve Root: C8-T1 Function: Flexion of the IP joint of the thumb and Assists in Flexion of the MCP joint of the thumb
27
Infraspinatus (somewhere else)
Origin: Infraspinatus fossa of the scapula Insertion: Greater tubercle of the humerus Peripheral Nerve: Suprascapular Nerve Nerve Root: C5-C6 Function: Lateral Rotation of the Shoulder
28
Lattisimus Dorsi (somewhere else)
``` Origin: Insertion: Peripheral Nerve: Nerve Root: Function: ```
29
Levator Scapulae (somewhere else)
Origin: Transverse processes of the upper 4 cervical vertebrae Insertion: Vertebral border of the scapula between the superior angle and the root of the scapular spine Peripheral Nerve: Dorsal Scapular Nerve Nerve Root: C3, C4, C5 Function: Scapular Elevation, Adduction, and Downward Rotation
30
Lumbricals (Hand) (somewhere else)
Origin: Tendons of the flexor digitorum profundus and Radial side of the tendon of digits 2-5 Insertion: Radial side of the extensor hood of the corresponding finger Peripheral Nerve: Median and Ulnar Nerve Nerve Root: C8-T1 Function: Flexion of MCP joints 2-5 and Extension of the PIP and DIP joints digits 2-5
31
Opponens Digiti Minimi (somewhere else)
Origin: Flexor retinaculum and Hook of the hamate Insertion: Ulnar side of the 5th metacarpal Peripheral Nerve: Ulnar Nerve Nerve Root: C8-T1 Function:Opposition at the CMC of the 5th digit
32
Opponens Pollicis (somewhere else)
Origin: Flexor retinaculum and Trapezium Insertion: Radial side of the 1st Metacarpal Peripheral Nerve: Median Nerve Nerve Root: C8-T1 Function: Opposition at the CMC joint of the thumb
33
Palmar Interossei (somewhere else)
Origin: Palmar surface of metacarpal bones 2 (ulnar side), 4 (radial side), and 5 (radial side) Insertion: 2nd extensor hood (ulnar side), 4th extensor hood (radial side), and 5th extensor hood (radial side) Peripheral Nerve: Ulnar Nerve Nerve Root: C8-T1 Function: Adduction and flexion of digits 2, 4, 5 and Extension of the PIP and DIP joints of digits 2, 4, 5
34
Palmaris Brevis (somewhere else)
``` Origin: Insertion: Peripheral Nerve: Nerve Root: Function: ```
35
Palmaris Longus (somewhere else)
``` Origin: Insertion: Peripheral Nerve: Nerve Root: Function: ```
36
Pronator Quadratus (somewhere else)
Origin: Anterior Aspect of the distal fourth of the ulna Insertion: Anterior aspect of the distal fourth of the radius Peripheral Nerve: Median Nerve Nerve Root: C8-T1 Function: Pronation of the forearm
37
Pronator Teres (somewhere else)
Origin: Humeral Head- Medial epicondylar ridge of the humerus and the common forearm flexor tendon Ulnar Head- Coronoid process of the ulna Insertion: Lateral surface of the midshaft of the radius Peripheral Nerve: Median Nerve Nerve Root: C6-C7 Function: Pronation of the forearm and Assists in Flexion of the Elbow
38
Subclavius
Origin: Upper border of 1st rib and its cartilage Insertion: Inferior surface of middle third of clavicle Peripheral Nerve: Nerve to subclavius Nerve Root: Function: Anchors and depresses clavicle
39
Subscapularis (somewhere else)
Origin: Subscapular fossa of the scapula Insertion: Lesser tubercle of the humerus Peripheral Nerve: Upper and Lower Subscapular Nerves Nerve Root: C5-C6 Function: Medial Rotation of the shoulder
40
Supinator (somewhere else)
Origin: Lateral epicondyle of the humerus, Supinator crest of the ulna, Radial collateral ligament of the elbow, and Annular ligament of the radius Insertion: Tuberosity and oblique line of the radius and the Dorsolateral surface of the upper third of the radial shaft Peripheral Nerve: Deep branch of the Radial Nerve Nerve Root: C6 Function: Supination of the forearm
41
Teres Major (somewhere else)
Origin: Superior two-thirds of the posterior surface of the axillary border of the scapula Insertion: Greater tubercle of the humerus Peripheral Nerve: Axillary Nerve Nerve Root: C5 Function: Lateral Rotation of the shoulder
42
Teres Minor (somewhere else)
Origin: Superior two-thirds of the posterior surface of the axillary border of the scapula Insertion: Greater tubercle of the humerus Peripheral Nerve: Axillary Nerve Nerve Root: C5 Function: Lateral Rotation of the shoulder
43
Triceps Brachii (somewhere else)
Origin: Long Head- Infraglenoid Tuberosity of the scapula Lateral Head- Posterior and Lateral surfaces of the humeral shaft Medial Head- Posterior and Medial surfaces of the humeral shaft Insertion: Olecranon process of the ulna Peripheral Nerve: Radial Nerve Nerve Root: C7-C8 Function: Extension of the elbow and the long head assists in Extending the shoulder
44
Trapezius (somewhere else)
UPPER Origin: External occipital protuberance, Medial third of the superior nuchal line, Ligamentum nuchae, and Spinous process of the 7th cervical vertebra Insertion: Lateral third of the Clavicle Peripheral Nerve: Spinal portion of the Accessory Nerve (CN XI) Nerve Root: C1-C5 Function: Scapular elevation and Upward Rotation of the scapula MIDDLE Origin: Spinous processes of Thoracic vertebrae 1-5 and the intervening supraspinal ligament Insertion: Medial border of the acromion process of the scapula and The spine of the scapula Peripheral Nerve: Spinal portion of the Accessory Nerve (CN XI) Nerve Root: C1-C5 Function: Scapular Adduction LOWER Origin: Spinous processes of Thoracic vertebrae 6-12 and the intervening supraspinal ligaments Insertion: Tubercle on the medial end of the scapular spine Peripheral Nerve: Spinal portion of the Accessory Nerve (CN XI) Nerve Root: C1-C5 Function: Scapular depression and Upward Rotation of the scapula
45
Supraspinatus (somewhere else)
Origin: Supraspinous fossa of the scapula Insertion: Greater Tubercle of the humerus Peripheral Nerve: Suprascapular Nerve Nerve Root: C5 Function: Abduction and Lateral rotation of the shoulder

List of Muscles (12 decks)

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