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MSK > Muscles Of The Arm > Flashcards

Muscles Of The Arm Flashcards

1
Q

What is the Proximal and Distal Attachment of the Pectoralis Major?

A

Proximal:
Clavicular Head: anterior surface of medial half of clavicle
Sternocostal Head: anterior surface of sternum, superior six costal cartilages, aponeurosis of external oblique muscle
Distal:
Lateral lip of intertubercular sulcus of humerus

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2
Q

What is the Proximal and Distal Attachment of the Pectoralis Minor?

A

Proximal: 3rd-5th ribs near their costal cartilages
Distal: Medial border & superior surface of coracoid process

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3
Q

What is the Proximal and Distal Attachment of the Subclavius?

A

Proximal: junction of 1st rib & it’s costal cartilage
Distal: Inferior surface of Middle third of the clavicle

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4
Q

What is the Proximal and Distal Attachment of the Serratus anterior?

A

Proximal: external surfaces of lateral parts of 1st-8th ribs
Distal: anterior surface of medial border of scapula

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5
Q

What is the Proximal and Distal Attachment of the Trapezius?

A

Proximal:
Medial 3rd of superior nuchal line; external occipital protuberance; nuchal ligament; spinous processes of C7-T12 vertebrae
Distal:
Lateral 3rd of clavicle; acromion & spine of scapula

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6
Q

What is the Proximal and Distal Attachment of the Latissimus Dorsi?

A

Proximal:
Spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest, & inferior 3 or 4 ribs
Distal:
Floor of intertubercular sulcus of humerus

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7
Q

What is the Proximal and Distal Attachment of the Levator Scapulae?

A

Proximal:
posterior tubercles of transverse processes of C1-C4 vertebrae
Distal:
Medial border of scapula superior to root of scapular spine

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8
Q

What is the Proximal and Distal Attachment of the Rhombpid minor and major?

A

Proximal:
Minor: nuchal ligament; spinous processes of C7 & T1 vertebrae
Major: spinous processes of T2-T5 vertebrae
Distal:
Minor: smooth triangular area at medial end of scapular spine
Major: medial border of scapula from level of spine to inferior angle

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9
Q

What is the Proximal and Distal Attachment of the Deltoid?

A

Proximal: lateral 3rd of clavicle; acromion and spine of scapula
Distal: Deltoid tuberosity of humerus

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10
Q

What is the Proximal and Distal Attachment of the Supraspinatus?

A

Proximal: Supraspinous fossa of scapula
Distal: Superior facet of greater tubercle of humerus

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11
Q

What is the Proximal and Distal Attachment of the Infraspinatus?

A

Proximal: Infraspinous fossa of scapula
Distal: Middle facet of greater tubercle of humerus

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12
Q

What is the Proximal and Distal Attachment of the Teres Minor?

A

Proximal: Middle part of lateral border of scapula
Distal: inferior facet of greater tubercle of humerus

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13
Q

What is the Proximal and Distal Attachment of the Teres Major?

A

Proximal: Posterior surface of inferior angle of scapula
Distal: medial lip of intertubercular sulcus of humerus

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14
Q

What is the Proximal and Distal Attachment of the Subscapularis?

A

Proximal: Subscapular fossa
Distal: lesser tubercle of humerus

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15
Q

What is the Proximal and Distal Attachment of the Biceps Brachii?

A

Proximal:
Short head: tip of coracoid process
Long head: supraglenoid tubercle of scapula
Distal:
Tuberosity of radius & fascia of forearm via bicipital aponeurosis

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16
Q

What is the Proximal and Distal Attachment of the coracoid brachialis?

A

Proximal: tip of coracoid process of scapula
Distal: Middle 3rd of medial surface of humerus

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17
Q

What is the Proximal and Distal Attachment of the Brachialis?

A

Proximal: distal half of anterior surface of humerus
Distal: coronoid process and tuberosity of ulna

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18
Q

What is the Proximal and Distal Attachment of the Triceps Brachii?

A

Proximal:
Long head: infraglenoid tubercle of scapula
Lateral head: posterior surface of humerus, superior to radial groove
Medial head: posterior surface of humerus, inferior to radial groove
Distal:
Proximal end of olecranon of ulna & fascia of forearm

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19
Q

What is the Proximal and Distal Attachment of the Anconeus?

A

Proximal: lateral epicondyle of humerus
Distal: lateral surface of olecranon & superior part of posterior surface of ulna

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20
Q

What is the Proximal and Distal Attachment of the Pronator Teres?

A

Proximal:
Ulnar head: Coronoid process
Humeral head: Medial epicondyle of humerus
Distal:
Middle of convexity of lateral surface of radius

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21
Q

What is the Proximal and Distal Attachment of the Flexor Carpi Radialis?

A

Proximal: Medial epicondyle of humerus
Distal: Base of 2nd metacarpal Flexes and abducts hand

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22
Q

What is the Proximal and Distal Attachment of the Palmaris Longus?

A

Proximal: Medial epicondyle of humerus
Distal: Distal half of flexor retinaculum and apex of palmar aponeurosis

23
Q

What is the Proximal and Distal Attachment of the Flexor Carpi Ulnaris?

A

Proximal:
Humeral head: Medial epicondyle of humerus
Ulnar head: Olecranon and posterior border (via aponeurosis)
Distal: pisiform, hook of hamate, 5th metacarpal

24
Q

What is the Proximal and Distal Attachment of the Flexor Digitorum Superficialis?

A

Proximal:
Humeroulnar head: Medial epicondyle
Radial head: superior half of anterior border
Distal: Shafts of Middle phalanges of medial four digits

25
Q

What is the Proximal and Distal Attachment of the Flexor Digitorum Profundus?

A

Proximal:
Proximal 3/4 of medial and anterior Surfaces of ulna and interrosseous membrane
Distal:
Medial part: Bases of distal phalanges of 4th & 5th digits
Lateral part: Bases of distal phalanges of 2nd & 3rd digits

26
Q

What is the Proximal and Distal Attachment of the Flexor Pollicis Longus?

A

Proximal:Anterior surface of radius & adjacent interrosseous membrane
Distal: Base of distal phalanx of thumb

27
Q

What is the Proximal and Distal Attachment of the Pronator Quadratus?

A

Proximal: Distal 1/4 of anterior surface of ulna
Distal: Distal 1/4 of anterior surface of radius

28
Q

What is the Proximal and Distal Attachment of the Brachioradialis?

A

Proximal: Proximal 2/3 of supraepicondylar ridge of humerus
Distal: lateral surface of distal end of radius proximal to styloid process

29
Q

What is the Proximal and Distal Attachment of the Extensor Carpi Radialis Longus?

A

Proximal: Lateral supraepicondylar ridge of humerus
Distal: Dorsal aspect of base of 2nd metacarpal

30
Q

What is the Proximal and Distal Attachment of the Extensor Carpi Radialis Brevis?

A

Proximal: lateral epicondyle of humerus
Distal: Extensor expansions of medial four digits

31
Q

What is the Proximal and Distal Attachment of the Extensor Digiti Minimi?

A

Proximal: Lateral epicondyle of humerus
Distal: Extensir expansion of 5th digit

32
Q

What is the Proximal and Distal Attachment of the Extensor Carpi Ulnaris?

A

Proximal:
Lateral epicondyle of humerus; posterior border of ulna via a shared aponeurosis
Distal: Dorsal aspect of base of 5th metacarpal

33
Q

What is the Proximal and Distal Attachment of the Supinator?

A

Proximal: Lateral epicondyle of humerus; radial collateral & anular ligaments; supinator fossa; crest of ulna
Distal: Lateral, posterior & anterior surfaces of proximal third of radius

34
Q

What is the Proximal and Distal Attachment of the Extensor Indicis?

A

Proximal: Posterior surface of distal third of ulna and interrosseous membrane
Distal: Extensor expansion of 2nd digit

35
Q

What is the Proximal and Distal Attachment of the Abductor Pollicis Longus?

A

Proximal: Posterior surface of proximal halves of ulna, radius & interosseous membrane.
Distal: base of 1st metacarpal

36
Q

What is the Proximal and Distal Attachment of the Extensor Pollicis Longus?

A

Proximal: Posterior surface of Middle third of ulna and interrosseous membrane
Distal: Dorsal aspect of base of distal phalanx of thumb

37
Q

What is the Proximal and Distal Attachment of the Extensor Pollicis Brevis?

A

Proximal: Posterior surface of distal third of radius and interosseous membrane
Distal: Dorsal aspect of base of proximal phalanx of thumb

38
Q

What is the Proximal Attachment of the Opponens Pollicis, Abductor Pollicis Brevis & Flexor Pollicis Brevis.

A

Flexor retinaculum & tubercles of scaphoid & trapezium

39
Q

What is the Distal Attachment of the Opponens Pollicis?

A

Lateral side of 1st metacarpal

40
Q

What is the Distal Attachment of the Abductor Pollicis Brevis & Flexor Pollicis Brevis?

A

Lateral side of base of proximal phalanx of thumb

41
Q

What is the Proximal and Distal Attachment of the Adductor Pollicis?

A

Proximal:
Oblique head: bases of 2nd & 3rd metacarpals, capitate & adjacent carpals.
Transverse head: Anterior surface of shaft of 3rd metacarpal
Distal: medial side of base of proximal phalanx of thumb

42
Q

What is the Proximal and Distal Attachment of the Abductor Digiti Minimi?

A

Proximal: pisiform
Distal: medial side of base of proximal phalanx of 5th digit

43
Q

What is the Proximal and Distal Attachment of the Flexor Digiti Minimi Brevis?

A

Proximal: Hook of hamate and flexor retinaculum
Distal: Medial side of base of proximal phalanx of 5th digit

44
Q

What is the Proximal and Distal Attachment of the Opponens Digiti?

A

Proximal: Hook of hamate & flexor retinaculum
Distal: Medial border of 5th metacarpal

45
Q

What is the Proximal and Distal Attachment of the Lumbricals?

A

Proximal:
1st & 2nd:
Lateral two tendons of flexor Digitorum profundus (unipennate)
3rd & 4th: Medial 3 tendons of 2nd-5th digits of flexor Digitorum profundus (bipennate)
Distal:
Lateral sides of extensor expansions of 2nd-5th digits

46
Q

What is the Proximal and Distal Attachment of the Dorsal interossei?

A

Proximal: adjacent sides of two metacarpals (bipennate)
Distal: Bases of proximal phalanges; extensor expansions of 2nd-4th digits

47
Q

What is the Proximal and Distal Attachment of the Palmar interossei?

A

Proximal: Palmar surfaces of 2nd, 4th and 5th metacarpals (unipennate)
Distal: Bases of proximal phalanges; extensor expansions of 2nd, 4th & 5th digits

48
Q

What Muscles does the Musculocutaneous nerve innervate?

A

Biceps Brachii (long head & short head)
Brachialis
Coracobrachialis

49
Q

What muscles are innervated by the Musculocutaneous nerve?

A

Biceps Brachii short head and long head
Brachialis
Coracobrachialis

49
Q

What muscles are innervated by the radial nerve?

A 
Triceps Brachii short head/ lateral head/ medius head
Brachioradialis
Extensor Carpi Ulnaris 
Extensor Carpi Radialis longis/ Brevis
Extensor digitorum of hand
Abductor Pollicis longis
Supinator
Anconeus
49
Q

What muscles are innervated by the median nerve?

A 
Palmaris longis
Flexor Digitorum Superficialis
Flexor Digitorum profundus
Flexor Carpi Radialis
Pronator Teres
Lumbricals
Opponens Pollicis 
Abductor Pollicis Brevis
Flexor Pollicis Brevis
49
Q

What muscles are innervated by the ulnar nerve?

A 
Flexor Carpi Ulnaris
Palmaris Brevis
Abductor Digiti Minimi
Flexor Digiti Minimi Brevis
Opponens Digiti Minimi
Adductor Pollicis transverse
Adductor Pollicis oblique
Interosseous
49
Q

What muscles are innervated by the Axillary?

A

Deltoid

MSK (6 decks)

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