Quiz 1 Flashcards
(120 cards)
1
Q
What are the three parts of the trapezius muscle ?
A
Descending, middle, ascending
2
Q
Origin of Trapezius
A
External occipital protuberance, superior nuchal line of occipital bone, nuchal ligament, spinous process of C7
3
Q
Insertion of Trapezius (decending)
A
Lateral 1/3 of clavicle and acromion
4
Q
Insertion of Trapezius (transverse)
A
Medial half of spine of scapula and acromion
5
Q
Insertion of Trapezius (ascending)
A
Medial half of the spine of the scapula
6
Q
Innervation of trapezius
A
Spinal accessory nerve and C3. C4 spinal nerves
7
Q
Action of Trapezius (descending)
A
Elevates scapula, extends, and laterally flexes
8
Q
Action of Trapezius (transverse)
A
Retract scapula
9
Q
Action of Trapezius (ascending)
A
Depress scapula
10
Q
Origin of Latissimus Dorsi
A
L1-L5 lumbar vertebrae via thoracolumbar fascia, spinous processes of T6-T12, sacrum, 9-12 ribs and iliac crest
11
Q
Insertion of Latissimus Dorsi
A
Floor of intertubercular groove of humerus
12
Q
Innervation of Latissimus Dorsi
A
Thoracodorsal nerve (C6, C7)
13
Q
Action of Latissimus Dorsi
A
Adduction, extension and medial rotation of the humerus
14
Q
Origin of Rhomboid Major
A
Spinous processes of T2-T5 thoracic vertebrae
15
Q
Insertion of Rhomboid Major
A
Medial border of scapula between the spine and inferior angle
16
Q
Innervation of Rhomboid Major
A
Dorsal scapular nerve (C5)
17
Q
Action of Rhomboid Major
A
Retraction of scapula and elevation of medial border of scapula
18
Q
Origin of Rhomboid Minor
A
Spinous processes of C7-T1
19
Q
Insertion of Rhomboid Minor
A
Scapular spine and superior angle of scapula, above rhomboid major
20
Q
Innervation of Rhomboid Minor
A
Dorsal scapular nerve (C5)
21
Q
Action of Rhomboid Minor
A
Retraction of scapula, elevation os medial border of scapula
22
Q
Origin Levator Scapulae
A
Posterior tubercles of transverse processes for C1-C3
23
Q
Insertion for Levator Scapulae
A
Superior angle of the scapula
24
Q
Innervation of Levator Scapulae
A
Dorsal scapular nerve (C5) and interior rami of C3, C4
25
Actions of Levator Scapulae
Downward rotation of glenoid cavity, elevates and retracts scapula in combo with the trapezius, laterally flexes neck if scapula is fixed
26
Origin of Subscapularis
Subscapular fossa of scapula
27
Insertion of Subscapularis
Lesser tubercle of humerus
28
innervation of Subscapularis
Upper and lower subscapular nerves (C6)
29
Action of Subscapularis
Medial rotation of humerus
30
Origin of Superspinatus
Superspinatus fossa of scapula
31
Insertion of Superspinatus
Superior facet of greater tubercle
32
innervation of Supraspinatus
Suprascapular nerve (C5)
33
Action of Supraspinatus
Abducts and stablizes the arm
34
Origin of Infraspinatus
Infraspinatus fossa of scapula
35
Insertion of Infraspinatus
Middle facet of greater tubercle of humerus
36
Innervation of Infraspinatus
Suprascapular nerve (C5)
37
Action of Infraspinatus
Lateral rotation of humerus
38
Origin of Teres Minor
Middle part of lateral border of scapula
39
Insertion of Teres Minor
Inferior facet of greater tubercle of humerus
40
Innervation of Teres Minor
Axillary nerve
41
Action of Teres Minor
Lateral rotation of the humerus
42
What are the Rotator Cuff Muscles?
(SITS) Superspinatus, infraspinatus, teres minor, and subscapularis
43
Origin or Teres Major Muscle
Lower lateral border and inferior angle of scapula
44
Insertion of Teres Major Muscle
Medial lip of the inter-tubercular groove
45
Innervation of the Teres Major Muscle
Lower subscapular nerve (C6)
46
Action of Teres Major Muscle
Adducts and medially rotates humerus
47
Origin of Deltoid (Anterior)
Lateral 1/3 of clavicle
48
Origin of Deltoid (Medial)
Acromion
49
Origin of Deltoid (Posterior)
Spine of scapular, deltoid tubercle
50
Insertion of Deltoid Muscle
All deltoid tuberosity of humerus
51
Innervation of Delotid
Axillary nerve (C5)
52
Action of Deltoid (Anterior)
Flexes and medially rotates the humerus
53
Action of Deltoid (Medial)
Abduction of humerus after 15°
54
Action of Deltoid (Posterior)
Extends and laterally rotates humerus
55
Origin of Serratus Anterior
External surfaces of ribs
56
Insertion of Serratus Anterior
Medial border of the scapula
57
Innervation of Serratus Anterior
Long thoracic nerve (C5-C7)
58
Actions of Serratus Anterior
Protraction and upwards rotation of scapula
59
Origin of Subclavis
First rib
60
Insertion of Subclavius Muscle
Inferior surface of middle third of clavicle
61
Actions of Subclavius Muscle
Stabilizes the clavicle
62
Innervation of Subclavius
Nerve to subclavius muscle (C5, C6)
63
What Muscles Make up the Triangular Space
Long head of triceps brachii, teres minor and teres major
64
What Blood Vessel Runs Through the Triangular Space
Circumflex scapular artery
65
What Makes up the Quandrangular Space?
Teres minor, teres major, long head triceps brachii, lateral head of tricep brachii
66
What Vessels Runs Through the Quadrangular Space?
Axillary nerve and posterior humeral circumflex
67
What Makes of the Triangular Interval?
Teres major, long head of triceps brachii, lateal head of triceps brachii
68
What Vessels Run Through the Triangle Interval?
Radial nerves and profunda brachii artery
69
What Kind of Joint is the Sternoclavicular Joint?
Synovial, saddle, acts like ball and socket. Biaxial
70
What Kind of Joint is the Costoclavicular Ligament?
Structured for non-synovial and functionally - (slightly moveable joint)
71
What Kind of Joint is the Acromioclavicular Joint?
Synovial, plane, uniaxial
72
What Kind of Joint in the Coracoclavicular Ligament?
Synovial, uniaxial
73
What Kind of Joint is the Glenohumeral Joint?
Synovial, ball and socket
74
What is the Function of the Glenoid Labrum?
Increases surface area and cushioning
75
Origin of Triceps (Long Head)
Infraglenoid tubercle of scapula
76
Origin of Triceps (Lateral Head)
Posterior surface of humerus, superior to radial groove
77
Origin of Triceps (Medial)
Posterior surface of humerus, inferior to radial groove
78
Insertion of Triceps
All olecranon of ulna and adjacent to antebrachial fascia
79
Innervation of Triceps
Radial nerve (C6) long head (C7)
80
Action Triceps Brachii
All extend forearm at elbow joint
81
Origin Biceps Brachii (Long Head)
Supraglenoid tubercle of scapula
82
Origin of Biceps Brachii (Short Head)
Apex of coracoid process of scapula
83
Insertion of Biceps Brachii
Radial tuberosity and antebrachial fascia
84
Innervation of Biceps Brachii
Musculocutaneous nerve (C5-C6)
85
Action of Biceps Brachii
Supinates forearm; flexes forearm at elbow joint
86
Origin of Brachialis
Anterior aspect of distal half of humerus
87
Insertion of Brachialis
Coronoid process and tuberosity of ulna
88
Action of Brachialis
Flexes forearm at elbow joint
89
Innervation of Brachialis
Musculocutaneous nerve (C5,C6) and radial (C7) nerves
90
Origin of Coracobrachialis
Coracoid process of the scapula
91
Insertion of Coracobrachialis
Midde third of medial aspect of humerus
92
Action of Coracobrachialis
Adducts and flexes arm at glenohumeral joint
93
Innervation of Coracobrachialis
Musculotaneous nerve (C5-C7)
94
Origin of Pectoralis Major
Clavicular Head: anterior aspects of medial half of clavicle
Sternocostal Head: Manubrium, sternal body, the true ribs and their costal cartilages
95
Insertion of Pectoralis Major
Crest of greater tubercle of humerus
96
Action of Pectoralis Major
Adducts, medially rotates and transversely adducts arm at the glenohumeral joint. Depresses pectoral girdle at acromioclavicular and steroclavicular joints
97
Innervation of Pectoralis Major
Medial and lateral pectoral nerves (C5-T1)
98
Origin of Pectoralis Minor
Anterior ends of third to fifth ribs
99
Insertion of Pectoralis Minor
Coracoid process of scapula
100
Action of Pectoralis Minor
Protracts and downwardly rotates the shoulder at acrominoclavicualr and sternoclavicular joints
101
Innervation of Pectoralis Minor
Medial and lateral pectoral nerves (C5-T1)
102
Foerster Dermatomes
Based on clinical findings - wider areas
103
Keegan and Garret Dermatomes
Based on limb development, narrow and straight areas
104
How Does the Brachial Plexus Split?
Ventral rami, trunks, divisions, cords, nerves
105
What are the 3 Trunks of the Brachial Plxeus?
Superior, middle, and inferior
106
What Roots Make the Superior Trunk?
C5, C6
107
What Roots Make the Middle Trunk?
C7
108
What Roots Make the Inferior Trunk
C8, T1
109
Divisions of the Brachial Plexus
Each of the three trunks divides into an anterior and posterior division. Making six total divisions
110
What are the Three Cords of the Brachial Plexus?
Lateral, posterior, and medial cord
111
How does the Posterior Cord Form?
All three posterior divisions unite to form the posterior cord
112
How does the Lateral Cord Form?
The anterior divisions of the superior and middle trunks unite to form the lateral cord
113
What Does the Medial Cord Form?
Formed by a continuation of the anterior divisions of the inferior trunk
114
What cord does the Musculocutaneous Nerve come from ?
Lateral cord
115
What cord does the Median Nerve come from?
The lateral and medial cord
116
What cord does the Ulnar nerve come from?
Medial cord
117
What cord does the Radial nerve come from?
Posterior cord
118
What cord does the Axillary nerve come from?
Posterior cord
119
What makes up the Delto-pectoral triangle
The superior border of the clavicle, the lateral border of the pectoralis major and the medial border of the deltoid
120
What is the Delto-pectoral Groove?
A triangular notch in the muscular structures between the deltoid and pectoralis major. The cephalic vein passes through here.
