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Unit 2 MTP > Muscle Chart > Flashcards

Muscle Chart Flashcards

(65 cards)

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1
Q

Serratus anterior origin

A

Lateral parts of rib 1-8

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2
Q

Serratus anterior insertion

A

Medial border of the scapula

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3
Q

Serratus anterior action

A

protract the scapula
Hold scapula against thoracic wall

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4
Q

Serratus anterior innervation

A

Long thoracic n (C5-C7)

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5
Q

Serratus anterior artery

A

Lateral thoracic a
Superior thoracic a

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6
Q

Subclavius origin

A

First rib and its cartilage

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7
Q

Subclavius insertion

A

Inferior surface of the clavicle

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8
Q

Subclavius action

A

Anchors and depresses clavicle

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9
Q

Subclavius innervation

A

Nerve to the subclavius C5

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10
Q

Subclavius artery

A

Clavicular branch of Thoracoacromial a

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11
Q

Pectoralis Major origin

A

Sternum
Superior 6 costal cartilages
Aponeurosis of external abdominal oblique muscle

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12
Q

Pectoralis Major insertion

A

Lateral lip of intertubercular sulcus of the humerus

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13
Q

Pectoralis Major action

A

Flexion, medial rotation, and adduction of the humerus

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14
Q

Pectoralis Major innervation

A

Clavicular head: Lateral pectoral n (C5-7)
Subcostal head: Medial pectoral n (C8-T1)

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15
Q

Pectoralis Major artery

A

Pectoral branch of thoracoacromial a

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16
Q

Pectoralis minor origin

A

Ribs 3-5 near their costal cartilage

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17
Q

Pectoralis minor insertion

A

Coracoid process of the scapula

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18
Q

Pectoralis minor action

A

Pull the scapula inferiorly and anteriorly against thoracic wall

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19
Q

Pectoralis minor innervation

A

Medial pectoral n (C8-T1)

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20
Q

Pectoralis minor artery

A

Pectoral branch of thoracoacromial a

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21
Q

Supraspinatus origin

A

Supraspinous fossa

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22
Q

Supraspinatus insertion

A

greater tubercle of the humerus (highest facet)

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23
Q

Supraspinatus action

A

Initiates first 10-15 degrees of abduction of the arm
Helps hold humerus into joint
Helps extension of arm

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24
Q

Supraspinatus innervation

A

Suprascapular n (C4-6)

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25
Supraspinatus artery
Suprascapular a
26
Infraspinatus origin
Infraspinatus fossa
27
Infraspinatus insertion
greater tubercle of the humerus (middle facet)
28
Infraspinatus action
Laterally rotates the arm Helps hold humerus into joint Helps extension of arm
29
Infraspinatus innervation
Suprascapular n (C4-6)
30
Infraspinatus artery
Suprascapular a Circumflex scapular a
31
Teres minor origin
Middle 1/3 of lateral border of the scapula
32
Teres minor insertion
greater tubercle of the humerus (inferior facet)
33
Teres minor action
Laterally rotates the arm Helps hold humerus into joint Helps extension of arm
34
Teres minor innervation
Axillary n (C5-C6)
35
Teres minor artery
Circumflex scapular a Posterior circumflex humeral a
36
Subscapularis origin
Subscapular fossa
37
Subscapularis insertion
Lesser tubercle of humerus
38
Subscapularis action
Adducts and medially rotates the arm Helps hold humerus into joint Helps extension of arm
39
Subscapularis innervation
Upper and lower subscapular n (C5-C7)
40
Subscapularis artery
Subscapular a
41
Teres Major origin
dorsal surface of the inferior angle of the scapula
42
Teres Major insertion
Medial crest of the intertubercular sulcus of the humerus
43
Teres Major action
Adducts and medially rotates the arm Assists Lat Dorsi in extension of flexed arm
44
Teres Major innervation
Lower subscapular n (C5-C6)
45
Teres Major artery
Thoracodorsal branch of subscapular a Posterior circumflex humeral a
46
Deltoid origin
Lateral 1/3 of the clavicle Acromion Lower lip of the crest of the spine of the scapula
47
Deltoid insertion
Deltoid tuberosity of the humerus
48
Deltoid action
Clavicular head: flexes and medially rotates arm Acromial head: abducts arm Scapular head: Extends and laterally rotates arm Stabilizes glenohumeral joint during heavy lifting with adducted arm
49
Deltoid innervation
Axillary n (C5-C6)
50
Deltoid artery
Posterior circumflex humeral a Anterior circumflex humeral a Acromial branch of thoracoacromial a Deltoid branch of thoracoacromial a Subscapular a
51
What three muscles insert on the greater tubercle of the humerus?
Supraspinatus - highest facet Infraspinatus - middle facet teres minor - lowest facet
52
What are the muscles of the rotator cuff?
Supraspinatus Infraspinatus Teres Minor Subscapularis
53
Nerves of the pectoral region and rotator cuff
1. Long thoracic n 2. Nerve to subclavius 3. Medial pectoral n 4. Lateral pectoral n 5. Suprascapular n 6. Axillary n 7. Upper subscapular n 8. Lower subscapular n
54
Nerves of the arm
1. Musculocutaneous n 2. Radial n (50/50)
55
Nerves of the anterior forearm
1. Median n (50%) 2. Ulnar n (FC *Ulnaris*, FD Profundis) 3. Anterior interosseous n
56
Nerves of the posterior forearm
1. Deep radial n (80%) 2. Radial n (brachioradialis, ECRL)
57
Nerves of the hand
1. Deep branch of the ulnar n (~70%) 2. Recurrent branch of median n 3. Superficial branch of ulnar n 4. Palmar digital n
58
Radial n innervation
Triceps brachii Brachialis (w/MSC) Brachioradialis Anconeus Extensor carpi radialis longus
59
Deep radial n innervation
Extensor carpi radialis brevis Supinator Extensor carpi ulnaris AbPL EPL EPB Extensor indicis ED EDM
60
Median n innervation
Flexor carpi radialis (C6, C7) Palmaris longus (C7, C8) Pronator teres (C6, C7) Flexor digitorum Superficialis (C6-C8)
61
Ulnar n innervation
Flexor digitorum profundus (medial part) Flexor carpi ulnaris
62
Anterior interosseous innervation
Flexor digitorum profundus (lateral part) Pronator quadratus
63
Deep branch of ulnar n innervation
Abductor digiti minimi Flexor digiti minimi Opponens digiti minimi Adductor pollicis Flexor pollicis brevis - deep head Lumbricals (medial half) Palmar interosseous Dorsal interosseous
64
Recurrent branch of median n innervation
Abductor pollicis brevis Flexor pollicis brevis - superficial head Opponens pollicis Lumbricals (lateral half)
65
Superficial branch of ulnar n innervation
palmaris brevis

Unit 2 MTP (5 decks)

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