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Anatomy > Anatomy Test 1 Muscles > Flashcards

Anatomy Test 1 Muscles Flashcards

1
Q

Origin of Pectorals Major

A

Clavicle, sternum, 1-6 costal cartilages

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2
Q

Insertion of Pectorals Major

A

Lateral lip of the bicipital groove of the humerus

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3
Q

Action of Pectorals Major

A

Adducts and medially rotates humerus

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4
Q

Innervation of Pectorals Major

A

Medial Pectoral nerve(C8-T1), lateral pectoral nerve (C5-C7),

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5
Q

Blood supply of Pectorals Major

A

Pectoral branch of Thoracoacromial Trunk

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6
Q

Origin of Pectoralis Minor

A

3-5th ribs near costal cartilage

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7
Q

Insertion of Pectoralis Minor

A

Coracoid process of scapula

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8
Q

Action of Pectoralis Minor

A

Stabilizes and protracts scapula

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9
Q

Innervation of Pectoralis Minor

A

Medial Pectoral nerve(C8-T1)

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10
Q

Blood supply of Pectoralis Minor

A

Pectoral branch of Thoracoacromial Trunk

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11
Q

Origin of Subclavius

A

First costal cartilage

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12
Q

Insertion of Subclavius

A

Inferior surface of clavicle

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13
Q

Action of Subclavius

A

Depresses and steadies clavicle

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14
Q

Innervation of Subclavius

A

Nerve to subclavius of superior trunk of Brachial Plexus (C5-C6)

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15
Q

Blood supply of Subclavius

A

Clavicular branch of Thoracoacromial Trunk

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16
Q

Origin of Serrates Anterior

A

1-8th Ribs

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17
Q

Insertion of Serrates Anterior

A

Medial Border, inferior angle of Scapula

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18
Q

Action of Serrates Anterior

A

Protracts and Rotates Scapula

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19
Q

Innervation of Serrates Anterior

A

Long Thoracic nerve(C5-C7)

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20
Q

Blood supply of Serrates Anterior

A

Lateral Thoracic Artery and Thoracodorsal Artery

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21
Q

Deltopectoral Triangle boundaries:

A

Pectoralis major muscle, Deltoid Muscle, Clavicle

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22
Q

Deltopectoral Triangle contains

A

Cephalic Vein, Deltoid Branch of Thoracoacromial Trunk

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23
Q

Origin of Trapezius

A

External occipital protuberance, nuchal ligament, Medial superior nuchal line, Spinous processes of C7-T12

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24
Q

Insertion of Trapezius

A

Posterior border of lateral third of clavicle, acromion process, spine of scapula

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25
Action of Trapezius
Rotation, retraction, elevation and depression of scapula
26
Innervation of Trapezius
Spinal accessory nerve (XI)
27
Blood supply of Trapezius
Transverse Cervical Artery (Descending)
28
Origin of Levator Scapulae
Posterior tubercle of transverse processes of (C1-C4)
29
Insertion of Levator Scapulae
Superior angle of scapula
30
Action of Levator Scapulae
Elevates scapula
31
Innervation of Levator Scapulae
Cervical Nerve (C3-C4), Dorsal Scapular Nerve (C5)
32
Blood supply of Levator Scapulae
Dorsal Scapular Artery
33
Origin of Rhomboid Minor
Nuchal ligaments and spinous processes (C7-T1)
34
Insertion of Rhomboid Minor
Medial border of scapula and (Superior to insertion of Rhomboid Major)
35
Action of Rhomboid Minor
Retracts and Rotates Scapula and Fixes scapula to thoracic wall
36
Innervation of Rhomboid Minor
Dorsal Scapular Nerve (C4-C5)
37
Blood supply of Rhomboid Minor
Deep branch of Transverse Scapular Artery
38
Origin of Rhomboid Major
Spinous processes of T2-T5
39
Insertion of Rhomboid Major
Medial border of Scapula (Inferior to insertion of Rhomboid Minor)
40
Action of Rhomboid Major
Retracts and Rotates Scapula, Fixes Scapula to Thoracic Wall
41
Innervation of Rhomboid Major
Dorsal Scapular Nerve (C4-C5)
42
Origin of Latissimus Dorsi
Spinous process of T7-L5, Thoracolumbar fascia, Iliac Crest, inferior angle of Scapula, inferior 3-4 ribs
43
Insertion of Latissimus Dorsi
Medial lip of Bicipital groove of Humerus
44
Action of Latissimus Dorsi
Adducts, extends, and internally rotates Humerus
45
Innervation of Latissimus Dorsi
Thoracodosal nerve (C6-C8)
46
Blood supply of Latissimus Dorsi
Thoracodorsal Branch of Subscapular Artery
47
Origin of Deltoids
Anterior border and upper surface of Lateral third of Clavicle, Acromion, Spine of Scapula
48
Insertion of Deltoids
Deltoid Tuberosity of Humerus
49
Action of Deltoids
Shoulder Abduction, flexion, and extension
50
Innervation of Deltoids
Axillary Nerve (C5-C6)
51
Blood supply of Deltoids
Deltoid branch of Thoracoacromial Trunk, Posterior Circumflex humeral Artery
52
Origin of Supraspinatus
Supraspinous fossa of Scapula
53
Insertion of Supraspinatus
Greater tubercle of Humerus
54
Action of Supraspinatus
Abduction of arm (15-20 degrees) and stabilizes humerus
55
Innervation of Supraspinatus
Suprascapular Nerve (C4-C5)
56
Blood suppy of Supraspinatus
Suprascapular Artery
57
Origin of Infraspinatus
Infraspinous fossa of Scapula
58
Insertion of Infraspinatus
Greater tubercle of Humerus
59
Action of Infraspinatus
Lateral rotation of Humerus
60
Innervation of Infraspinatus
Suprascapular Nerve (C4-C5)
61
Blood supply of Infraspinatus
Suprascapular and Circumflex Scapular Arteries
62
Origin of Teres Major
Posterior aspect of the inferior angle of Scapula
63
Insertion of Teres Major
Medial lip of intertubercular groove of Humerus
64
Action of Teres Major
Medial rotation of Humerus
65
Innervation of Teres Major
Lower Subscapular Nerve (C5-C6)
66
Blood supply of Teres Major
Subscapular and Circumflex Scapular Arteries
67
Origin of Teres Minor
Lateral border of Scapula
68
Insertion of Teres Minor
Greater tubercle of Humerus
69
Action of Teres Minor
Laterally rotates Humerus
70
Innervation of Teres Minor
Axillary Nerve (C5-C6)
71
Blood supply of Teres Minor
Posterior circumflex humeral and circumflex scapular arteries
72
Origin of Subscapularis
Subscapular Fossa
73
Insertion of Subscapularis
Lesser tubercle of Humerus
74
Action of Subscapularis
Medially Rotates Humerus
75
Innervation of Subscapularis
Upper subscapular Nerve, Lower Subscapular Nerve (C5-C6)
76
Blood supply of Subscapularis
Subscapular Artery
77
Quadrangular Space boundaries:
Teres Minor Teres Major Long Head of Triceps Lateral Head of Triceps
78
Quadrangular Space contains:
Axillary Nerve | Posterior Circumflex Humeral Artery
79
Triangular Space boundaries:
Teres Minor Teres Major Long Head of Triceps
80
Triangular Space contains:
Circumflex scapular artery deep to space
81
Triangular Interval boundaries:
Teres Major Long Head of Triceps Lateral Head of Triceps
82
Triangular Interval contains:
Radial Nerve | Deep Brachial Artery
83
Triangle of Auscultation boundaries:
Trapezius Latissiumus Dorsi Medial Border of Scapula
84
Lumbar Triangle of Petit boundaries:
``` Iliac Crest External Oblique Latissiumus Dorsi Site of Hernia (Cecum and Internal Oblique) ```
85
Origin of Biceps Brachii – Short Head
Coracoid process of Scapula
86
Insertion of Biceps Brachii – Short Head
Radial tuberosity
87
Action of Biceps Brachii – Short Head
Flexes elbow and Supinates forearm
88
Innervation of Biceps Brachii – Short Head
Musculocutaneous Nerve (C5-C7)
89
Blood supply of Biceps Brachii – Short Head
Brachial Artery
90
Origin of Biceps Brachii – Long Head
Supraglenoid Tubercle
91
Insertion of Biceps Brachii – Long Head
Radial tuberosity
92
Action of Biceps Brachii – Long Head
Flexes elbow and Supinates forearm
93
Innervation of Biceps Brachii – Long Head
Musculocutaneous Nerve (C5-C7)
94
Blood supply of Biceps Brachii – Long Head
Brachial Artery
95
Origin of Coracobrachialis
Coracoid process of Scapula
96
Insertion of Coracobrachialis
Medial Humerus
97
Action of Coracobrachialis
Adducts Humerus, Flexes arm at Glenohumeral joint
98
Innervation of Coracobrachialis
Musculocutaneous Nerve (C5-C7)
99
Blood supply of Coracobrachialis
Brachial Artery
100
Origin of Brachialis
Anterior surface of Humerus (distal half)
101
Insertion of Brachialis
Coronoid process and tuberosity of ulna
102
Action of Brachialis
Flexes elbow
103
Innervation of Brachialis
Musculocutaneous Nerve (C5-C7)
104
Blood supply of Brachialis
Radial Recurrent Artery
105
Origin of Triceps Brachii
Long head – infraglenoid tubercle of scapula Lateral head – above radial sulcus Medial head – below radial sulcus
106
Insertion of Triceps Brachii
Olecranon process of ulna
107
Action of Triceps Brachii
Extends forearm, long head extends shoulder
108
Innervation of Triceps Brachii
Radial Nerve (C5-T1)
109
Blood supply of Triceps Brachii
Deep Brachial Artery
110
Origin of Ancones
Lateral epicondyle of Humerus
111
Insertion of Ancones
Lateral surface of olecranon process, Superior ulna
112
Action of Ancones
Forearm extension, Stabilization during pronation/supination
113
Innervation of Ancones
Radial Nerve (C5-T1)
114
Blood supply of Ancones
Deep Brachial Artery, Recurrent Interosseous Artery
115
Cubital Fossa bound by
Laterally by brachioradialis muscle | Medially by pronator teres muscle
116
Cubital Fossa base:
Between the epicondyles
117
Cubital Fossa floor:
Supinator muscle laterally | Brachialis muscle medially
118
Cubital Fossa roof:
Skin and fascia | Bicipital aponeurosis
119
Cubital Fossa contains:
``` Median Nerve Brachial Artery – radial and ulnar arteries Tendon of Biceps Brachii Radial Nerve and Deep Branches Lateral Cutaneous nerve of forearm Median Cubital vein ```
120
Origin of Extensor Carpi Radialis Longus
Lateral Supracondylar Ridge
121
Insertion of Extensor Carpi Radialis Longus
2nd metacarpal
122
Action of Extensor Carpi Radialis Longus
Extension of wrist | Abducts hand at the wrist
123
Innervation of Extensor Carpi Radialis Longus
Radial Nerve (C5-T1)
124
Blood supply of Extensor Carpi Radialis Longus
Radial artery
125
Origin of Extensor Carpi Radialis Brevis
Anterior lateral epicondyle of Humerus
126
Insertion of Extensor Carpi Radialis Brevis
Posterior base of 3rd metacarpal
127
Action of Extensor Carpi Radialis Brevis
Extensor and abductor of the hand at the wrist
128
Innervation of Extensor Carpi Radialis Brevis
Deep branch of Radial Nerve (C5-T1)
129
Blood supply of Extensor Carpi Radialis Brevis
Radial Artery
130
Origin of Pronator Teres
Medial epicondyle of Humerus
131
Insertion of Pronator Teres
Middle of the lateral surface of the body of the Radius
132
Action of Pronator Teres
Pronation of forearm | Flexes elbow
133
Innervation of Pronator Teres
Median Nerve (C6-T1)
134
Blood supply of Pronator Teres
Radial and Ulnar Arteries
135
Origin of Flexor Carpi Radialis
Medial epicondyle of Humerus
136
Insertion of Flexor Carpi Radialis
Bases of second and third metacarpals
137
Action of Flexor Carpi Radialis
Flexion and abduction of wrist
138
Innervation of Flexor Carpi Radialis
Median Nerve (C6-T1)
139
Blood supply of Flexor Carpi Radialis
Ulnar Arteries
140
Origin of Palmer's Longus
Medial epicondyle of Humerus
141
Insertion of Palmer's Longus
Palmar aponeurosis
142
Action of Palmer's Longus
Flexion of the wrist
143
Innervation of Palmer's Longus
Median Nerve (C6-T1)
144
Blood supply of Palmer's Longus
Ulnar Artery
145
Origin of Flexor Carpi Ulnaris
Medial epicondyle of Humerus
146
Insertion of Flexor Carpi Ulnaris
Pisiform
147
Action of Flexor Carpi Ulnaris
Flexion of wrist | Adduction of wrist
148
Innervation of Flexor Carpi Ulnaris
Muscular Branches of Ulnar Nerve
149
Blood supply of Flexor Carpi Ulnaris
Ulnar Artery
150
Origin of Flexor Digitorum Superficialis
Medial epicondyle of Humerus
151
Insertion of Flexor Digitorum Superficialis
Anterior margins on the bases of middle phalanges of the four fingers
152
Action of Flexor Digitorum Superficialis
Flexes fingers
153
Innervation of Flexor Digitorum Superficialis
Median Nerve (C6-T1)
154
Blood supply of Flexor Digitorum Superficialis
Ulnar Artery
155
Origin of Supinator
Lateral epicondyle of Humerus | Supinator Crest of Ulna
156
Insertion of Supinator
Lateral proximal radial shaft
157
Action of Supinator
Supinates forearm
158
Innervation of Supinator
Deep Radial Nerve
159
Blood supply of Supinator
Radial Recurrent Artery
160
Origin of Flexor Policus Longus
The middle ½ of volar surface of Radius | Adjacent interosseous membrane
161
Insertion of Flexor Policus Longus
Base of distal phalanx of the thumb
162
Action of Flexor Policus Longus
Flexion of the thumb
163
Innervation of Flexor Policus Longus
Anterior interosseous nerve – branch of Median Nerve (C6-T1)
164
Blood supply of Flexor Policus Longus
Anterior Interosseous artery
165
Origin of Pronator Quadratus
Medial, anterior surface of ulna
166
Insertion of Pronator Quadratus
Lateral, anterior surface of Radius
167
Action of Pronator Quadratus
Pronates forearm
168
Innervation of Pronator Quadratus
Anterior interosseous nerve – branch of Median Nerve (C6-T1)
169
Blood supply of Pronator Quadratus
Anterior Interosseous artery
170
Origin of Flexor Digitorum Profundus
Upper ¾ of the voler and medial surfaces of Ulna | Interosseous membrane
171
Insertion of Flexor Digitorum Profundus
Base of distal phalanges of fingers
172
Action of Flexor Digitorum Profundus
Flexion of the hand
173
Innervation of Flexor Digitorum Profundus
Anterior interosseous nerve – branch of Median Nerve (C6-T1)
174
Blood supply of Flexor Digitorum Profundus
Anterior Interosseous artery
175
Origin of Extensor Carpi Ulnaris
Common Extensor Tendon
176
Insertion of Extensor Carpi Ulnaris
5th Metacarpal
177
Action of Extensor Carpi Ulnaris
Extends and Adducts Wrist
178
Innervation of Extensor Carpi Ulnaris
Deep Branch of Radial Nerve (C5-T1)
179
Blood supply of Extensor Carpi Ulnaris
Ulnar Artery
180
Origin of Extensor Digitorum
Lateral epicondyle of Humerus
181
Insertion of Extensor Digitorum
Extensor expansion of middle/distal phalanges of 2nd-5th fingers
182
Action of Extensor Digitorum
Extension of hand, wrist, fingers
183
Innervation of Extensor Digitorum
Radial Nerve (C5-T1)
184
Blood supply of Extensor Digitorum
Posterior Interosseous artery
185
Origin of Extensor Digiti Minimi
Anterior portion of the lateral epicondyle of the Humerus
186
Insertion of Extensor Digiti Minimi
Base of proximal phalanx of finger 5
187
Action of Extensor Digiti Minimi
Extends wrist and the little finger
188
Innervation of Extensor Digiti Minimi
Posterior Interosseous Nerve (C7-8)
189
Blood supply of Extensor Digiti Minimi
Posterior Interosseous artery
190
Origin of Abductor Pollicis Longus
Ulna, Radius, Interosseous Membrane
191
Insertion of Abductor Pollicis Longus
First Metacarpal
192
Action of Abductor Pollicis Longus
Abduction, extension of the thumb
193
Innervation of Abductor Pollicis Longus
Posterior Interosseous Nerve
194
Blood supply of Abductor Pollicis Longus
Posterior Interosseous artery
195
Origin of Extensor Pollicus Brevis
Radius and Interosseous Membrane
196
Insertion of Extensor Pollicus Brevis
Thumb, proximal phalanx
197
Action of Extensor Pollicus Brevis
Extension of thumb
198
Innervation of Extensor Pollicus Brevis
Posterior interosseous nerve – branch of Median Nerve (C6-T1)
199
Blood supply of Extensor Pollicus Brevis
Posterior Interosseous artery
200
Origin of Extensor Indicis
Ulna, interosseous membrane
201
Insertion of Extensor Indicis
Index finger
202
Action of Extensor Indicis
Extends index finger, wrist
203
Innervation of Extensor Indicis
Posterior interosseous nerve – branch of Median Nerve (C6-T1)
204
Blood supply of Extensor Indicis
Posterior Interosseous artery
205
Blood supply of Rhomboid Major
Dorsal Scapular Artery

Anatomy (5 decks)

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