THE BACK AND UPPER LIMB MUSCLES Flashcards
(89 cards)
1
Q
Name the muscle
A
Deltiod
2
Q
A
Deltiod
3
Q
A
Deltoid
4
Q
nerve supply of the deltoid?
A
axillary nerve
5
Q
axillary nerve
A
nerve supply of the deltoid?
6
Q
Proximal attachment of the deltoid
A
- lateral ⅓ clavicle
- acromion
- spine of the scapula
7
Q
- lateral ⅓ clavicle
- acromion
- spine of the scapula
A
Proximal attachment of the deltoid
8
Q
Distal attachment of the deltoid:
A
deltoid tuberosity of the humerus
9
Q
deltoid tuberosity of the humerus
A
Distal attachment of deltoid
10
Q
actions of the deltoid muscle?
A
flexes/rotation/ abducts the arm
11
Q
A
Teres major and minor
12
Q
A
Teres major
13
Q
Nerve supply of teres major
A
lower subscapularis nerve
14
Q
lower subscapularis nerve
A
nerve supply of teres major
15
Q
The proximal attachment of teres major:
A
posterior surface and inferior corner of the scapula
16
Q
posterior surface and inferior corner of the scapula
A
Proximal attachment of teres major:
17
Q
Distal attachment of teres major:
A
medial lip of the intertubercular groove of the humerus
18
Q
the medial lip of the intertubercular groove of the humerus
A
Distal attachment of teres major
19
Q
Action of teres major:
A
adduction and medial rotation of the arm
20
Q
Rotator cuff muscles
A
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
21
Q
A
supraspinatus
22
Q
A
supraspinatus
23
Q
Nerve to the supraspinatus:
A
suprascapular nerve
24
Q
Distal attachment of supraspinatus:
A
superior facet of the greater tubercle of the humerus
25
The proximal attachment of supraspinatus:
supraspinous fossa
26
The main action of the supraspinatus:
helps deltoid in abduction of the arm and
| acts with the rotator cuff
27
infraspinatus
28
Nerve to the infraspinatus
suprascapular nerve
29
Proximal attachment of the infraspinatus:
infraspinous fossa
30
Distal attachment of the infraspinatus
middle facet of the greater tubercle of the humerus
31
Main action of the infraspinatus:
- lateral rotation
| - helps keep the humerus head in the glenoid cavity
32
teres minor
33
teres minor
34
Nerve to the teres minor :
axillary nerve
35
Proximal attachment of the teres minor:
middle part of the lateral border of the scapula
36
Distal attachment of the teres minor:
inferior facet of the greater tubercle of the humerus
37
Main action of the teres minor:
lateral rotation
| helps keep the humerus head in the glenoid cavity
38
subscapularis
39
Nerve to the subscapularis:
upper + lower subscapularis nerve
40
Proximal attachment of the subscapularis :
subscapular fossa
41
Distal attachment of the subscapularis:
lesser tubercle of the humerus
42
Main action of the subscapularis:
- medial rotation and abduction of the arm
| - helps with keeping the humerus head in the glenoid cavity
43
Biceps brachii
44
Biceps brachii
This muscle has 2x heads = short and long head
There is no attachment on the humerus
It spans over 3x joints
45
Nerve to the Biceps brachii muscle:
musculocutaneus nerve
46
Proximal attachment of the Biceps brachii
Short head: coracoid process
| Long head: supraglenoid tubercle
47
Distal attachment of the Biceps brachii
Tuberosity [on the radius] and bicipital aponeuroses
48
the action of the Biceps brachii
Supination/ flexion of the forearm
49
Brachialis
50
Nerve supply to the Brachialis
musculocutaneus nerve
51
Proximal attachment of the Brachialis
Distal ½ of the anterior surface of the humerus
52
Distal attachment of the Brachialis
Coronoid process/
| Tuberosity on the ulna
53
The action of the Brachialis
Flexion of the forearm
54
coracobrachialis
55
coracobrachialis
56
Proximal attachment of the coracobrachialis
Coracoid process-scapula
57
Distal attachment of the coracobrachialis
Middle 1/3 medial surface humerus
58
Nerve to the muscle coracobrachialis :
Musculocutaneus nerve
59
Action of the coracobrachialis
Flexion/adduction of the forearm
60
triceps brachii
61
Nerve to the triceps brachii
radialis nerve
62
Proximal attachment of the triceps brachii
Long head: infraglenoid tubercle
[of the scapula]
Lateral head: posterior surface of the humerus [superior to the radial groove]
Medial head: posterior surface of the humerus [inferior to the radial groove]
63
Distal attachment of the triceps brachii
Proximal part of the olecranon
| [ulna and fascia forearm]
64
Action of the triceps brachii
Extension/abduction of the forearm
65
anconeus
66
Nerve to the anconeus
radialis nerve
67
Proximal attachment of the anconeus
Lateral epicondyle [of the humerus]
68
Distal attachment of the anconeus
The lateral surface of the olecranon/
| the superior part of the posterior surface of the ulna
69
Action of the anconeus
Extension/stability in abduction of the elbow joint
70
Pectorals major
71
Nerve to the Pectorals major:
Medial pectoral and lateral pectoral nerve
72
Proximal attachment of the Pectorals major
Anterior surface of the medial ½ of clavicle /
anterior surface of the sternum /
super 6 costal cartilages /
aponeuroses of external oblique m
73
Distal attachment of the Pectorals major:
Lateral lip of the bicipital groove of the humerus
74
The action of the Pectorals major:
Adducts and medially rotates the humerus/ draws scapula anterior and inferior / acting alone it flexes the humerus
75
Pectoralis minor
76
Nerve to the Pectoralis minor:
Medial pectoral nerve
77
Proximal attachment of the Pectoralis minor:
3-5 ribs near costal cartilages
78
Distal attachment of the Pectoralis minor
Medial border and superior surface of the coracoid process of the scapula
79
Action of the Pectoralis minor:
Stabilizes scapula by drawing it inferior and anterior against the thoracic wall
80
Subclavius
81
Nerve to the Subclavius:
subclavian nerve (C5-6)
82
Proximal attachment of the Subclavius
Junction of the 1st rib and its costal cartilage
83
Distal attachment of the Subclavius:
Inf surface of middle 1/3 of clavicle
84
Action of the Subclavius:
Anchors and depresses clavicle
85
Serratus anterior
86
Nerve to the Serratus anterior
Long thoracic nerve
87
The proximal attachment of the Serratus anterior
external surfaces of the lateral parts of the 1-8 ribs
88
Distal attachment of the Serratus anterior:
Anterior surface of the medial border of the scapula
89
Action of the Serratus anterior
Protracts the scapula and holds it against the thoracic wall /
Rotates the scapula
