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Phls 401 > The Back > Flashcards

The Back Flashcards

(58 cards)

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1
Q

Origin of trapezius

A

Medial 1/3 of superior nuchal line; external occipital protuberance; nuchal ligament; spinous processes of c7-t12 vertebrae

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2
Q

Insertion of trapezius

A

Lateral 1/3 of clavicle; acromion and spine of scapula

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3
Q

Innervation of trapezius

A

Accessory nerve (11th cranial nerve)

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4
Q

Action of trapezius

A

Elevation, retraction and rotation of the scapula

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5
Q

Blood supply of trapezius

A

Transverse cervical artery

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6
Q

Origin of latissimus dorsi

A

Spinous processes of t7-12, thoracolumbar fascia, iliac crest

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7
Q

Insertion of latissimus dorsi

A

Intertubercular groove of humerus

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8
Q

Innervation of latissimus dorsi

A

Thoracodorsal nerve (lower subscapular nerve)

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9
Q

Action of latissimus dorsi

A

Adduction, extension and medial rotation of the arm

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10
Q

Blood supply of latissimus dorsi

A

Thoracodorsal artery

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11
Q

Origin of Levator Scapulae

A

Transverse processes of C1-C4

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12
Q

Insertion of Levator Scapulae

A

Insertion of medial border of scapula

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13
Q

Innervation of Levator scapulae

A

Dorsal scapular nerve

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14
Q

Action of Levator Scapulae

A

Elevates the scapula

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15
Q

Blood supply of Levator scapulae

A

Dorsal scapular artery

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16
Q

Origin of Rhomboid Major

A

T2-T5 spinous processes

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17
Q

Insertion of Rhomboid Major

A

Medial border of scapula below the spine of scapula

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18
Q

Innervation of Rhomboid Major

A

Dorsal scapular nerve

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19
Q

Action of Rhomboid Major

A

Retracts scapula

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20
Q

Blood supply of Rhomboid Major

A

Dorsal Scapular Artery

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21
Q

Origin of Rhomboid Minor

A

C7 and T1 spinous processes

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22
Q

Insertion of Rhomboid Minor

A

Medial border of scapula

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23
Q

Innervation of Rhomboid Minor

A

Dorsal scapular nerve

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24
Q

Action of Rhomboid Minor

Study These Flashcards
A

Retracts scapula

25
Blood supply of Rhomboid Minor
Dorsal scapular artery
26
Origin of Deltoid
Clavicle, acromion, and spine of scapula
27
Insertion of Deltoid
Deltoid tuberosity of humerus
28
Innervation of Deltoid
Axillary nerve
29
Blood supply of Deltoid
posterior circumflex numeral artery
30
Action of Deltoid
Flexion and abduction of the arm
31
Origin of Supraspinatus
Supraspinatus fossa of scapula
32
Insertion of Supraspinatus
Greater tubercle of the humerus
33
Innervation of Supraspinatus
Suprascapular nerve
34
Action of Supraspinatus
Abduction of arm
35
Blood supply of Supraspinatus
Suprascapular artery
36
Origin of Infraspinatus Muscle
Infraspinatus fossa of scapula
37
Insertion of Infraspinatus Muscle
Greater tubercle of humerus; middle 1/3
38
Innervation of Infraspinatus Muscle
Suprascapular nerve
39
Action of Infraspinatus Muscle
Laterally rotates arm; rotator cuff muscle
40
Blood Supply of Infraspinatus Muscle
Suprascapular artery and circumflex scapular
41
Origin of Teres Minor
Middle part of lateral border of scapula
42
Insertion of Teres Minor
Greater tubercle of humerus; inferior 1/3
43
Innervation of Teres Minor
Axillary Nerve
44
Action of Teres Minor
Laterally rotates the arm; rotator cuff muscle
45
Blood supply of Teres Minor
Posterior circumflex humoral and circumflex scapular artery
46
Origin of Subscapularis
Subscapular fossa
47
Insertion of Subscapularis
Lesser tubercle of humerus
48
Innervation of Subscapularis
Upper and lower subscapular nerves
49
Action of Subscapularis
Medial rotation and addiction of the arm; rotator cuff muscle
50
Blood supply of Subscapularis
Subscapular artery
51
Origin of Teres Major
Posterior surface of inferior angle of scapula
52
Insertion of Teres Major
Medial lip of intertubercular groove of humerus
53
Innervation of Teres Major
Lower subscapular nerve
54
Action of Teres Major
Adducts and medically rotates arm
55
Blood Supply of Teres Major
Subscapular artery and circumflex scapular arteries
56
Which muscles make up the rotator cuff?
Supraspinatus, infraspinatus, subscapularis, Teres minor (SITS)
57
What is the triangle of auscultation?
Area on the back where muscle layers are thinner; good for listening to the lungs
58
What are the borders of the triangle of ausculation?
Superior: Trapezius Medial: Latissimus Dorsi Lateral: Scapula

Phls 401 (1 decks)

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