General Anatomy- muscles of the shoulder girdle Flashcards

0
Q

What is the blood supply of the supraspinatus and infraspinatus?

A

suprascapular

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1
Q

What are the Rotator Cuff muscles? (SITS)

A

Supraspinatus, Infraspinatus, Teres Minor, and Subscapularis

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2
Q

What is the blood supply of Teres Minor?

A

Scapular circumflex

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3
Q

What is the blood supply for the subscapularis?

A

Lateral thoracic and subscapular

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4
Q

What is the nerve supply for supraspinatus and infraspinatus?

A

suprascapular

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5
Q

What is the nerve supply for Teres Minor?

A

axillary

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6
Q

What is the nerve supply for subscapularis?

A

subscapular

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7
Q

What are the actions of the SITS muscles (the CHEER)?

A

Abduction for supraspinatus, external (lateral) rotation for infraspinatus and teres minor and internal (medial) rotation for subscapularis

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8
Q

What is the origin/insertion for supraspinatus and infraspinatus?

A

fossa of scapula/ GREATER tubercle of humerus

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9
Q

What is the origin/insertion for Teres Minor?

A

Lateral border dorsal scapula/ GREATER tubercle of humerus

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10
Q

What is the origin/insertion of Subscapularis?

A

subscapular fossa of scapula/ LESSER tubercle of humerus

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11
Q

What are other muscles of the shoulder girdle?

A

latissimus dorsi, trapezius, rhomboid, SERRATUS ANTERIOR, deltoid, teres major, and pectoralis minor

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12
Q

What is the blood supply of the other shoulder girdle muscles?

A

descending scapular

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13
Q

What is the nerve supply for the latissimus dorsi?

A

thoracodorsal

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14
Q

What is the nerve supply of the trapezius muscle?

A

Spinal accessory

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15
Q

What is the nerve supply of the Romboid muscle?

A

dorsal scapular

16
Q

What is the nerve supply of the serratus anterior (SALT) muscle?

A

long thoracic

17
Q

What is the nerve supply of the deltoid muscle?

A

axillary

18
Q

What is the nerve supply of the Teres Major muscle?

A

subscapular

19
Q

What is the nerve supply of the pectoralis minor muscle?

A

median pectoral nerve

20
Q

What is the action of latissimus dorsi?

A

extension and internal rotation of the arm

21
Q

What is the action of the trapezius?

A

adduct scapula

22
Q

What is the action of rhomboids?

A

scapular retraction

23
Q

What is the action of serratus anterior?

A

adheres scapula to chest wall

24
Q

What is the action of the deltoid?

A

abduction of the arm

25
Q

What is the action of the Teres MAJOR?

A

extension, medial rotation, and adducts arm

26
Q

What is the action of Pectoralis MINOR?

A

draws scapula forward?

27
Q

What is the origin/insertion of Rhomboids?

A

SP of C7 and T1 (minor) and SP of T2-T5 (major)/ scapula

28
Q

What is the origin/insertion of the deltoid muscle?

A

Trapezius, clavicle, acromion, spine of scapula/ deltoid tuberosity of humerus