Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

(J) Muscles > Shoulder Complex and Brachial Muscles > Flashcards

Shoulder Complex and Brachial Muscles Flashcards

1
Q

What is the proximal attachment of the trapezius?

A

External Occipital Protuberance

Superior Nuchal Line

Ligamentum Nuchae

Spinous process; CV7, TV1-12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the distal attachment of the trapezius?

A

Lateral 1/3 of clavicle

Acromion and crest of scapular spine

Tubercle of scapular spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What innervates the trapezius?

A

CN XI (accessory nerve)

Ventral Rami C3-C4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the blood supply of the trapezius?

A

Dorsal Scapular Artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the actions of the trapezius?

A

Elevates, depresses scapula, adducts, and upwardly rotates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the proximal attachment of lattisimus dorsi?

A

Spines of TV7-12

Lumbar/sacral vertebrae via thoracolumar fascia

Posterior iliac crest

Ribs 9-12

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the distal attachment of the lattisimus dorsi?

A

Floor of intertubercular (bicipital) groove

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the actions of the lattisimus dorsi?

A

Extends, adducts, and internally rotates humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What innervates the lattisimus dorsi?

A

Thoracodorsal nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the blood supply for the lattisimus dorsi?

A

Subscapular artery via the the throacodorsal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the proximal attachment for the levator scapulae?

A

Transverse process of CV1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the distal attachment for the levator scapulae?

A

Medial border of scapula at and above the spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the actions of the levator scapulae?

A

Elevates scapula at superior angle

Assists in external/downward rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What innervates the levator scapulae?

A

C3-C5 (Dorsalscapular Nerve for C5)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the blood supply for the levator scapulae?

A

Dorsal scapular artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the proximal attachment for the rhomboids?

A

Ligementum nuchae

Spines of CV7, TV1-4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the distal attachment of the rhomboids?

A

Medial border of scapula from spine to the inferior angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What are the actions of the rhomboids?

A

Adducts scapula

External/downward rotation of glenoid fossa

Fixes scapula to thoracic wall

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What innervates the rhomboids?

A

Dorsal scapular nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the blood supply of the rhomboids?

A

Dorsal scapular artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the proximal attachment of the teres major?

A

Posterior inferior angle of scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What is the distal attachment of the teres major?

A

Medial lip of intertubercular (bicipital) groove

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What are the action of the teres major?

A

Adducts and medically rotates the humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What innervates the teres major?

A

Lower subscapular nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What is the blood supply of the teres major?
Circumflex scapular artery
26
What is the proximal attachment of the teres minor?
Middle of the lateral border of the scapula
27
What is the distal attachment of the teres minor?
Inferior facet of the greater tubercle
28
What are the actions of the teres minor?
Laterally rotates humerus Fixes head of humerus
29
What innervates the teres minor?
Axillary nerve
30
What is the blood supply of the teres minor?
Circumflex scapular artery
31
What is the proximal attachment of subclavius?
Junction of 1st rib and costal cartilage
32
What is the distal attachment of the subclavius?
Inferior surface of middle 1/3 of clavicle
33
What are the actions of the subclavius?
Anchors/depresses scapula
34
What innervates the subclavius?
Nerve to subclavius
35
What is the blood supply of the subclavius?
Subclavian artery
36
What is the proximal attachment of the pectoralis major?
Anteromedical surface of clavicle Anterior manubrium and sternum Costal cartilage 2-6 Aponeurosis of external obliques
37
What is the distal attachment of the pectoralis major?
Lateral lip of intertubercular (bicipital) groove
38
What are the actions of pectoralis major?
Adducts and medially rotates humerus Flexes arm Extends arm from flexed position Draws scapular anteriorly and inferiorly
39
What innervates the pectoralis major?
Lateral and medial pectoral nerves
40
What is the blood supply of the pectoralis major?
Pectoral branch of the thoracoacromial artery
41
What is the proximal attachment of the pectoralis minor?
Ribs 3-5
42
What is the distal attachment of the pectoralis minor?
Coracoid process
43
What are the actions of the pectoralis minor?
Draws scapula inferiorly against thoracic wall (stabilizes)
44
What innervates the pectoralis minor?
Medial pectoral nerve
45
What is the blood supply of the pectoralis minor?
Pectoral branch of the thoracoacromial artery
46
What is the proximal attachment of the serratus anterior?
External lateral parts of ribs 1-8(9)
47
What is the distal attachment of the serratus anterior?
Anterior medial surface of scapula
48
What are the actions of the serratus anterior?
Rotates, protracts, and fixes scapula to thoracic wall
49
What innervates the serratus anterior?
Long thoracic nerve
50
What is the blood supply of the serratus anterior?
Lateral thoracic artery
51
What is the proximal attachment of the biceps brachii?
Supraglenoid tubercle (long head) Coracoid process of scapula (short head)
52
What is the distal attachment biceps brachii?
Posterior border of bicipital tuberosity of the radius Bicipital aponeurosis
53
What are the actions of the biceps brachii?
Supinate forearm Flexes elbow Assist in humeral flexion
54
What innervates the biceps brachii?
Musculocutaneous nerve
55
What is the blood supply of the biceps brachii?
Muscular branch of brachial artery
56
What is the proximal attachment of triceps brachii?
Infraglenoid tubercle (long head) Upper posterior humerus (lateral head) Lower posterior part of humerus, inferomedial to radial groove (medial head)
57
What is the distal attachment of the triceps brachii?
Posterior upper surface of olecranon process.
58
What are the actions of the triceps brachii?
Extends elbow Stabilizes shoulder
59
What innervates the triceps brachii?
Radial nerve
60
What is the blood supply of the triceps brachii?
Deep brachial artery
61
What is the proximal attachment of brachialis?
Anterior lower half of humerus
62
What is the distal attachment of the brachialis?
Coronoid process and ulnar tuberosity
63
What innervates the brachialis?
Musculocutaneous nerve and radial nerve
64
What is the blood supply of the brachialis?
Muscular branch of brachial artery Radial recurrent artery
65
What are the actions of the brachialis?
Flexes elbow
66
What is the proximal attachment of the deltoid?
Lateral 1/3 of clavicle Acromion Scapular spine
67
What is the distal attachment of the deltoid?
Deltoid tuberosity (humerus)
68
What are the actions of the deltoid?
Flexes, extends, medially rotates, laterally rotates, and abducts
69
What innervates the deltoid?
Axillary nerve
70
What is the blood supply of the deltoid?
Deltoid branch of the thoracoacromial artery
71
What is the proximal attachment of the coracobrachialis?
Coracoid process
72
What is the distal attachment of the coracobrachialis?
Middle 3rd of the medial surface of the humerus
73
What are the actions of the coracobrachialis?
Assists in flexion and adduction of humerus
74
What innervates the coracobrachialis?
Musculocutaneous nerve
75
What is the blood supply of the coracobrachialis?
Muscular branch of the brachial artery
76
What is the proximal attachment of the supraspinatus?
Supraspinous fossa
77
What is the distal attachment of the supraspinatus?
Superior facet of the greater tubercle
78
What are the actions of the supraspinatus?
Assists deltoid in adbuction of humerus Stabilizes shoulder joint
79
What is the innervation of the supraspinatus?
Suprascapular nerve
80
What is the blood supply for the supraspinatus?
Suprascapular artery
81
Proximal attachment of infraspinatus?
Infrospinous fossa
82
What is the distal attachment of infraspinatus?
Middle facet of greater tubercle
83
What innervates the infraspinatus?
Suprascapular nerve
84
What is the action of the infraspinatus?
Laterally rotates humerus Stabilizes head of humerus
85
What is the blood supply to infraspinatus?
Suprascapular artery
86
What is the proximal attachment of subscapularis?
Subscapular fossa
87
What is the distal attachment of the subscapularis?
Lesser tubercle
88
What are the actions of the subscapularis?
Medially rotates and adducts humerus Stabilizes head of humerus
89
What is the innervation of the subscapularis?
Upper and lower subscapular nerves
90
What is the blood supply to the subscapularis?
Suprascapular artery
91
What is the proximal attachment of the anconeus?
Posterior lateral epicondyle of humerus
92
What is the distal attachment of the anconeus?
Lateral olecranon and superior, posterior ulna
93
What innervates the anconeus?
Radial nerve
94
What are the actions of the anconeus?
Abducts ulna during pronation | Assists in flexion

(J) Muscles (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions