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Gross Anatomy 1 > Quiz 1 > Flashcards

Quiz 1 Flashcards

1
Q

What are the three parts of the trapezius muscle ?

A

Descending, middle, ascending

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2
Q

Origin of Trapezius

A

External occipital protuberance, superior nuchal line of occipital bone, nuchal ligament, spinous process of C7

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3
Q

Insertion of Trapezius (decending)

A

Lateral 1/3 of clavicle and acromion

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4
Q

Insertion of Trapezius (transverse)

A

Medial half of spine of scapula and acromion

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5
Q

Insertion of Trapezius (ascending)

A

Medial half of the spine of the scapula

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6
Q

Innervation of trapezius

A

Spinal accessory nerve and C3. C4 spinal nerves

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7
Q

Action of Trapezius (descending)

A

Elevates scapula, extends, and laterally flexes

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8
Q

Action of Trapezius (transverse)

A

Retract scapula

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9
Q

Action of Trapezius (ascending)

A

Depress scapula

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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

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11
Q

Insertion of Latissimus Dorsi

A

Floor of intertubercular groove of humerus

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12
Q

Innervation of Latissimus Dorsi

A

Thoracodorsal nerve (C6, C7)

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13
Q

Action of Latissimus Dorsi

A

Adduction, extension and medial rotation of the humerus

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14
Q

Origin of Rhomboid Major

A

Spinous processes of T2-T5 thoracic vertebrae

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15
Q

Insertion of Rhomboid Major

A

Medial border of scapula between the spine and inferior angle

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16
Q

Innervation of Rhomboid Major

A

Dorsal scapular nerve (C5)

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17
Q

Action of Rhomboid Major

A

Retraction of scapula and elevation of medial border of scapula

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18
Q

Origin of Rhomboid Minor

A

Spinous processes of C7-T1

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19
Q

Insertion of Rhomboid Minor

A

Scapular spine and superior angle of scapula, above rhomboid major

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20
Q

Innervation of Rhomboid Minor

A

Dorsal scapular nerve (C5)

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21
Q

Action of Rhomboid Minor

A

Retraction of scapula, elevation os medial border of scapula

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22
Q

Origin Levator Scapulae

A

Posterior tubercles of transverse processes for C1-C3

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23
Q

Insertion for Levator Scapulae

A

Superior angle of the scapula

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24
Q

Innervation of Levator Scapulae

A

Dorsal scapular nerve (C5) and interior rami of C3, C4

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25
Q

Actions of Levator Scapulae

A

Downward rotation of glenoid cavity, elevates and retracts scapula in combo with the trapezius, laterally flexes neck if scapula is fixed

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26
Q

Origin of Subscapularis

A

Subscapular fossa of scapula

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27
Q

Insertion of Subscapularis

A

Lesser tubercle of humerus

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28
Q

innervation of Subscapularis

A

Upper and lower subscapular nerves (C6)

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29
Q

Action of Subscapularis

A

Medial rotation of humerus

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30
Q

Origin of Superspinatus

A

Superspinatus fossa of scapula

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31
Q

Insertion of Superspinatus

A

Superior facet of greater tubercle

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32
Q

innervation of Supraspinatus

A

Suprascapular nerve (C5)

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33
Q

Action of Supraspinatus

A

Abducts and stablizes the arm

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34
Q

Origin of Infraspinatus

A

Infraspinatus fossa of scapula

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35
Q

Insertion of Infraspinatus

A

Middle facet of greater tubercle of humerus

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36
Q

Innervation of Infraspinatus

A

Suprascapular nerve (C5)

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37
Q

Action of Infraspinatus

A

Lateral rotation of humerus

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38
Q

Origin of Teres Minor

A

Middle part of lateral border of scapula

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39
Q

Insertion of Teres Minor

A

Inferior facet of greater tubercle of humerus

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40
Q

Innervation of Teres Minor

A

Axillary nerve

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41
Q

Action of Teres Minor

A

Lateral rotation of the humerus

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42
Q

What are the Rotator Cuff Muscles?

A

(SITS) Superspinatus, infraspinatus, teres minor, and subscapularis

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43
Q

Origin or Teres Major Muscle

A

Lower lateral border and inferior angle of scapula

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44
Q

Insertion of Teres Major Muscle

A

Medial lip of the inter-tubercular groove

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45
Q

Innervation of the Teres Major Muscle

A

Lower subscapular nerve (C6)

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46
Q

Action of Teres Major Muscle

A

Adducts and medially rotates humerus

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47
Q

Origin of Deltoid (Anterior)

A

Lateral 1/3 of clavicle

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48
Q

Origin of Deltoid (Medial)

A

Acromion

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49
Q

Origin of Deltoid (Posterior)

A

Spine of scapular, deltoid tubercle

50
Q

Insertion of Deltoid Muscle

A

All deltoid tuberosity of humerus

51
Q

Innervation of Delotid

A

Axillary nerve (C5)

52
Q

Action of Deltoid (Anterior)

A

Flexes and medially rotates the humerus

53
Q

Action of Deltoid (Medial)

A

Abduction of humerus after 15°

54
Q

Action of Deltoid (Posterior)

A

Extends and laterally rotates humerus

55
Q

Origin of Serratus Anterior

A

External surfaces of ribs

56
Q

Insertion of Serratus Anterior

A

Medial border of the scapula

57
Q

Innervation of Serratus Anterior

A

Long thoracic nerve (C5-C7)

58
Q

Actions of Serratus Anterior

A

Protraction and upwards rotation of scapula

59
Q

Origin of Subclavis

A

First rib

60
Q

Insertion of Subclavius Muscle

A

Inferior surface of middle third of clavicle

61
Q

Actions of Subclavius Muscle

A

Stabilizes the clavicle

62
Q

Innervation of Subclavius

A

Nerve to subclavius muscle (C5, C6)

63
Q

What Muscles Make up the Triangular Space

A

Long head of triceps brachii, teres minor and teres major

64
Q

What Blood Vessel Runs Through the Triangular Space

A

Circumflex scapular artery

65
Q

What Makes up the Quandrangular Space?

A

Teres minor, teres major, long head triceps brachii, lateral head of tricep brachii

66
Q

What Vessels Runs Through the Quadrangular Space?

A

Axillary nerve and posterior humeral circumflex

67
Q

What Makes of the Triangular Interval?

A

Teres major, long head of triceps brachii, lateal head of triceps brachii

68
Q

What Vessels Run Through the Triangle Interval?

A

Radial nerves and profunda brachii artery

69
Q

What Kind of Joint is the Sternoclavicular Joint?

A

Synovial, saddle, acts like ball and socket. Biaxial

70
Q

What Kind of Joint is the Costoclavicular Ligament?

A

Structured for non-synovial and functionally - (slightly moveable joint)

71
Q

What Kind of Joint is the Acromioclavicular Joint?

A

Synovial, plane, uniaxial

72
Q

What Kind of Joint in the Coracoclavicular Ligament?

A

Synovial, uniaxial

73
Q

What Kind of Joint is the Glenohumeral Joint?

A

Synovial, ball and socket

74
Q

What is the Function of the Glenoid Labrum?

A

Increases surface area and cushioning

75
Q

Origin of Triceps (Long Head)

A

Infraglenoid tubercle of scapula

76
Q

Origin of Triceps (Lateral Head)

A

Posterior surface of humerus, superior to radial groove

77
Q

Origin of Triceps (Medial)

A

Posterior surface of humerus, inferior to radial groove

78
Q

Insertion of Triceps

A

All olecranon of ulna and adjacent to antebrachial fascia

79
Q

Innervation of Triceps

A

Radial nerve (C6) long head (C7)

80
Q

Action Triceps Brachii

A

All extend forearm at elbow joint

81
Q

Origin Biceps Brachii (Long Head)

A

Supraglenoid tubercle of scapula

82
Q

Origin of Biceps Brachii (Short Head)

A

Apex of coracoid process of scapula

83
Q

Insertion of Biceps Brachii

A

Radial tuberosity and antebrachial fascia

84
Q

Innervation of Biceps Brachii

A

Musculocutaneous nerve (C5-C6)

85
Q

Action of Biceps Brachii

A

Supinates forearm; flexes forearm at elbow joint

86
Q

Origin of Brachialis

A

Anterior aspect of distal half of humerus

87
Q

Insertion of Brachialis

A

Coronoid process and tuberosity of ulna

88
Q

Action of Brachialis

A

Flexes forearm at elbow joint

89
Q

Innervation of Brachialis

A

Musculocutaneous nerve (C5,C6) and radial (C7) nerves

90
Q

Origin of Coracobrachialis

A

Coracoid process of the scapula

91
Q

Insertion of Coracobrachialis

A

Midde third of medial aspect of humerus

92
Q

Action of Coracobrachialis

A

Adducts and flexes arm at glenohumeral joint

93
Q

Innervation of Coracobrachialis

A

Musculotaneous nerve (C5-C7)

94
Q

Origin of Pectoralis Major

A

Clavicular Head: anterior aspects of medial half of clavicle

Sternocostal Head: Manubrium, sternal body, the true ribs and their costal cartilages

95
Q

Insertion of Pectoralis Major

A

Crest of greater tubercle of humerus

96
Q

Action of Pectoralis Major

A

Adducts, medially rotates and transversely adducts arm at the glenohumeral joint. Depresses pectoral girdle at acromioclavicular and steroclavicular joints

97
Q

Innervation of Pectoralis Major

A

Medial and lateral pectoral nerves (C5-T1)

98
Q

Origin of Pectoralis Minor

A

Anterior ends of third to fifth ribs

99
Q

Insertion of Pectoralis Minor

A

Coracoid process of scapula

100
Q

Action of Pectoralis Minor

A

Protracts and downwardly rotates the shoulder at acrominoclavicualr and sternoclavicular joints

101
Q

Innervation of Pectoralis Minor

A

Medial and lateral pectoral nerves (C5-T1)

102
Q

Foerster Dermatomes

A

Based on clinical findings - wider areas

103
Q

Keegan and Garret Dermatomes

A

Based on limb development, narrow and straight areas

104
Q

How Does the Brachial Plexus Split?

A

Ventral rami, trunks, divisions, cords, nerves

105
Q

What are the 3 Trunks of the Brachial Plxeus?

A

Superior, middle, and inferior

106
Q

What Roots Make the Superior Trunk?

A

C5, C6

107
Q

What Roots Make the Middle Trunk?

A

C7

108
Q

What Roots Make the Inferior Trunk

A

C8, T1

109
Q

Divisions of the Brachial Plexus

A

Each of the three trunks divides into an anterior and posterior division. Making six total divisions

110
Q

What are the Three Cords of the Brachial Plexus?

A

Lateral, posterior, and medial cord

111
Q

How does the Posterior Cord Form?

A

All three posterior divisions unite to form the posterior cord

112
Q

How does the Lateral Cord Form?

A

The anterior divisions of the superior and middle trunks unite to form the lateral cord

113
Q

What Does the Medial Cord Form?

A

Formed by a continuation of the anterior divisions of the inferior trunk

114
Q

What cord does the Musculocutaneous Nerve come from ?

A

Lateral cord

115
Q

What cord does the Median Nerve come from?

A

The lateral and medial cord

116
Q

What cord does the Ulnar nerve come from?

A

Medial cord

117
Q

What cord does the Radial nerve come from?

A

Posterior cord

118
Q

What cord does the Axillary nerve come from?

A

Posterior cord

119
Q

What makes up the Delto-pectoral triangle

A

The superior border of the clavicle, the lateral border of the pectoralis major and the medial border of the deltoid

120
Q

What is the Delto-pectoral Groove?

A

A triangular notch in the muscular structures between the deltoid and pectoralis major. The cephalic vein passes through here.

Gross Anatomy 1 (2 decks)

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