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1
Q

What is the origin of the trapezius muscle?

A

Medial third of superior nuchal line, external occipital protuberance, ligamentum nuchae, spinous processes of CVII to TXII

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2
Q

What is the insertion of the trapezius muscle?

A

lateral one third of the clavicle, medial side of the acromion and the upper crest of the scapular spine, tubercle of the scapular spine

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3
Q

What is the innervation of the trapezius muscle?

A

motor: spinal accessory (XI), proprioception: C3-C4

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4
Q

What is the function of the trapezius muscle?

A

Assists in rotating the scapular during abduction of humorous above horizontal; upper fibers elevate, middle fibers adduct, and lower fibers depressed scapula

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5
Q

What is the blood supply of the trapezius muscle?

A

Transverse cervical artery

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6
Q

Which muscles make up the superficial or appendicular group of back muscles?

A

Trapezius, latissimus dorsi, levator scapulae, rhomboid major, rhomboid minor

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7
Q

What is the origin of the latissimus dorsi muscle?

A

Spinous processes of TVII to LV and sacrum, iliac crest, ribs X to XII

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8
Q

What is the insertion of the latissimus dorsi muscle?

A

Floor of intertubercular sulcus of humerus

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9
Q

What is the innervation of the latissimus dorsi muscle?

A

Thoracodorsal nerve C7 & C8 from the posterior cord of the brachial plexus

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10
Q

What is the blood supply of the latissimus dorsi muscle?

A

Thoracodorsal artery

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11
Q

What is the function of the latissimus dorsi muscle?

A

Extends and medially rotates humerus

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12
Q

What is the origin of the levator scapulae muscle?

A

Transverse processes of CI to CIV

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13
Q

What is the insertion of the levator scapulae muscle?

A

Upper portion medial border of scapula

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14
Q

What is the innervation of the levator scapulae muscle?

A

Dorsal scapular nerve (C5); the upper part of the muscle receives branches of C3 and C4

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15
Q

What is the blood supply the levator scapulae muscle?

A

Dorsal scapular artery

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16
Q

What is the function of the levator scapulae muscle?

A

Elevate scapula

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17
Q

What is the origin of the rhomboid major muscle?

A

Spinous processes of TII to TV

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18
Q

What is the insertion of the rhomboid major muscle?

A

Medial border of the scapula inferior to the spine of the scapula

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19
Q

What is the innervation of the rhomboid major muscle?

A

Dorsal scapular nerve (C4, C5)

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20
Q

What is the blood supply of the rhomboid major muscle?

A

Dorsal scapular artery

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21
Q

What is the function of the rhomboid major muscle?

A

Retracts and elevates scapula

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22
Q

What is the origin of the rhomboid minor muscle?

A

Lower portion of the ligamentum nuchae, spinous processes of CVII and TI

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23
Q

What is the insertion of the rhomboid minor muscle?

A

Medial border of the scapula at the root of the spine of the scapula

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24
Q

What is the innervation of the rhomboid minor muscle?

A

Dorsal scapular nerve (C4, C5)

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25
What is the blood supply of the rhomboid minor muscle?
Dorsal scapular artery
26
What is the function of the rhomboid minor muscle?
Retracts and elevates scapula
27
Which muscles are included in the intermediate group of back muscles?
Serratus posterior superior, serratus posterior inferior
28
What is the origin of the serratus posterior superior muscle?
Lower portion of ligamentum nuchae, spinous processes of CVII to TIII and supraspinous ligaments
29
What is the insertion of the serratus posterior superior muscle?
Upper border of ribs II to V just lateral of their angles
30
What is the innervation of the serratus posterior superior muscle?
Anterior rami of upper thoracic nerves (T2 to T5)
31
What is the function of the serratus posterior superior muscle?
Elevates ribs 2 to 5
32
What is the blood supply of the serratus posterior superior muscle?
Posterior intercostal arteries one through four
33
What is the origin of the serratus posterior inferior muscle?
Spinous processes of TXI to LIII (T11 to L3) and supraspinous ligaments
34
What is the insertion of the serratus posterior inferior muscle?
Lower border of ribs IX to XII just lateral to the angles
35
What is the innervation of the serratus posterior inferior muscle?
Anterior Rami of lower thoracic nerves (T9 to T12)
36
What is the blood supply to the serratus posterior inferior muscle?
Lowest posterior intercostal artery, subcostal artery, first 2 lumbar arteries
37
What is the function of the serratus posterior inferior muscle?
Depresses ribs 9 to 12 and may prevent lower ribs from being elevated when the diaphragm contracts
38
What is the origin of the splenius capitis muscle?
Lower half of the ligamentum nuchae, spinous processes of CVII to TIV (C7 to T4)
39
What is the insertion of the splenius capitis muscle?
Mastoid process, skull below lateral 1/3 of superior nuchal line
40
What is the innervation of the splenius capitis muscle?
Posterior rami middle cervical nerves
41
What is the blood supply of the splenius capitis muscle?
Supplied segmentally by deep cervical artery, posterior intercostal arteries
42
What is the function of the splenius capitis muscle?
Together — draw head backward, extending neck; individually — draw and rotate head to one side
43
What is the origin of the splenius cervicis muscle?
Spinous processes of TIII to TVI
44
What is the insertion of the splenius cervicis muscle?
Transverse processes of CI to CII
45
What is the innervation of the splenius cervicis muscle?
Posterior rami lower cervical nerves
46
What is the blood supply of the splenius cervicis muscle?
Supplied segmentally by: deep cervical artery, posterior intercostal arteries
47
What is the function of the splenius cervicis muscle?
Together – extend neck; individually – draw and rotate head from one side
48
What are the spinotransversales muscles?
Splenius capitis | Splenius cervicis
49
Name the three erector spinae muscles.
Iliocostalis longissimus spinalis
50
What is part of the scapula is the arrow pointing to?
Inferior Angle
51
What is part of the scapula is the arrow pointing to?
Infraglenoid Tubercle
52
What part of the scapula is the arrow pointing to?
Subscapular Fossa
53
What part of the scapula is the arrow pointing to?
Suprascapular Notch
54
What is part of the scapula is the arrow pointing to?
Infraspinous Fossa
55
What is part of the scapula is the arrow pointing to?
Lateral Border of the Scapula
56
What is part of the scapula is the arrow pointing to?
Medial Border of the Scapula
57
What is part of the scapula is the arrow pointing to?
Spine of the Scapula
58
What is part of the scapula is the arrow pointing to?
Supraspinous Fossa
59
What is part of the scapula is the arrow pointing to?
Superior Angle of the Scapula
60
What is part of the scapula is the arrow pointing to?
Acromial Angle
61
What is part of the scapula is the arrow pointing to?
Acromion of the Scapula
62
What is part of the scapula is the arrow pointing to?
Neck of the Scapula
63
What is part of the scapula is the arrow pointing to?
Glenoid Cavity
64
What is part of the scapula is the arrow pointing to?
Spinoglenoid Notch
65
What is part of the scapula is the arrow pointing to?
Supraglenoid Tubercle
66
What is part of the scapula is the arrow pointing to?
Coracoid Process
67
What is part of the scapula is the arrow pointing to?
Superior Border of the Scapula
68
What is the arrow pointing at?
Acromial End of the Clavicle
69
What is the arrow pointing at?
Conoid Tubercle
70
What is the arrow pointing at?
Clavicle Shaft
71
What is the arrow pointing at?
Sternal End of the Clavicle
72
What is the arrow pointing at?
Trapezoid Line
73
What muscle is highlighted in green?
Latissimus Dorsi
74
What muscle is highlighted in green?
Trapezius
75
What muscle is highlighted in green?
Rhomboid Major
76
What muscle is highlighted in green?
Rhomboid Minor
77
What muscle is highlighted in green?
Serratus Posterior Superior
78
What muscle is highlighted in green?
Splenius Capitis
79
What muscle is highlighted in green?
Splenius Cervicis
80
What muscle is highlighted in green?
Deltoid, Posterior Head
81
What muscle is highlighted in green?
Deltoid, Middle Head
82
What muscle is highlighted in green?
Supraspinatous
83
What muscle is highlighted in green?
Infraspinatous
84
What muscle is highlighted in green?
Teres Minor
85
What muscle is highlighted in green?
Teres Major
86
What muscle is highlighted in green?
Deltoid, Anterior Head
87
What muscle is highlighted in green?
Serratus Posterior Inferior
88
What is the innervation of the anterior, middle, and posterior heads of the deltoid?
Axillary Nerve
89
What is the blood supply of the anterior, middle, and posterior heads of the deltoid?
Posterior Circumflex Humeral Artery
90
What is the innervation of the supraspinatus muscle?
Suprascapular Nerve
91
What is the blood supply of the supraspinatus?
Suprascapular Artery
92
What is the innervation of the infraspinatus muscle?
Suprascapular nerve
93
What is the blood supply of the infraspinatus muscle?
Suprascapular artery and circumflex scapular artery
94
What is the innervation of the Teres minor muscle?
Axillary Nerve
95
What is the blood supply of the Teres minor muscle?
Circumflex Scapular Artery
96
What is the innervation of the Teres major muscle?
Lower Subscapular Nerves
97
What is the blood supply of the Teres major muscle?
Circumflex Scapular Artery
98
What is the innervation of the Subscapularis muscle?
Upper and lower Subscapular nerves
99
What is the blood supply of the subscapularis muscle?
Subscapular Artery
100
What is the insertion of the infraspinatus muscle?
Greater tubercle of the humerus
101
What is the insertion of the supraspinatus muscle?
Greater tubercle of the humerus
102
What is the insertion of the Teres minor muscle?
The greater tubercle of the humerus
103
What is the insertion of the Teres major muscle?
Intertubercular groove of the humerus
104
What is the insertion of the subscapularis muscle?
Lesser Tubercle of the Humerus
105
What is the insertion of the anterior, middle, and posterior heads of the deltoid?
Deltoid tuberosity on the lateral side of the humerus
106
What is the origin of the supraspinatus muscle?
Supraspinous fossa
107
What is the origin of the infraspinatus muscle?
Infraspinous fossa
108
What is the origin of the Teres minor muscle?
Lateral border of the scapula
109
What is the origin of the Teres major muscle?
The inferior angle of the scapula
110
What is the origin of the posterior head of the deltoid?
Spine of the scapula
111
What is the origin of the middle head of the deltoid?
Acromion of the scapula
112
What is the origin of the anterior head of the deltoid?
Lateral third of the clavicle
113
What is the origin of the subscapularis muscle?
Subscapular fossa

Human Structure UAMS (1 decks)

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