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Musculoskeleton - OINA's > Page 1 (Ant & Post Thoracoappendicular and Scapulohumeral) > Flashcards

Page 1 (Ant & Post Thoracoappendicular and Scapulohumeral) Flashcards

0
Q

Pectoralis major - origins

  • Clavicular head
  • Sternocostal head (3)
A

Clavicular head - medial 1/2 of clavicle

Sternocostal head - manubrium & body of sternum, Costal cartilage of ribs 1-6, and ext. oblique aponeurosis

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1
Q

Pectoralis major - Insertion

A

lateral lip of Bicipital groove

Part of the PLT insertions on the bicipital groove

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2
Q

Pectoralis major - actions (3)

A

Flexes, adducts, and medially rotates the arm

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3
Q

Pectoralis major - innervations

  • Clavicular head
  • Sternocostal head
A

Medial and lateral pectoral nerves:

  • Clavicular head (C5, C6)
  • Sternocostal head (C7, C8, T1)
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4
Q

Pectoralis minor - origin

A

Ribs 3-5

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5
Q

Pectoralis minor - insertion

A

Coracoid process of scapula

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6
Q

Pectoralis minor - innervation

A

medial pectoral nerve (C8, T1)

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7
Q

Serratus anterior - origin

A

lateral parts of ribs 1-8

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8
Q

Serratus anterior - insertion

A

Medial border of scapula

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9
Q

Pectoralis minor - actions (2)

A

Protract and depress scapula

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10
Q

Serratus anterior - innervation

A

Long thoracic nerve (C5, C6, C7)

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11
Q

Subclavius - origin

A

First rib and its cartilage

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12
Q

Subclavius - insertion

A

Inferior surface of clavicle

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13
Q

Serratus anterior - actions (2)

A

Protracts and upward (sup.) rotation of scapula

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14
Q

Subclavius - innervation

A

Nerve to subclavius (C5, C6)

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15
Q

Subclavius - actions (2)

A

Anchor and depress the clavicle

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16
Q

Trapezius - origins (4)

A

Medial third of superior nuchal line
External occipital protuberance
Nuchal ligaments
Spinous processes of vertebrae C7-T12

17
Q

Trapezius - insertions (3)

A

Lateral third of clavicle, acromion, and scapular spine

18
Q

Trapezius - innervation

A

Accessory nerve (CN XI) - motor

20
Q

Trapezius - actions (4)

A

Elevate and depress scapula
Rotates and retracts scapula

(There are three parts to the Trapezius [upper, middle, and lower])

21
Q

Latissimus dorsi - origins (2)

A

Vertebral spines from T7 to the sacrum
Iliac crest
Lower 3 or 4 ribs

21
Q

Latissimus dorsi - actions (3)

A

Adducts, extends, and rotates (medially) the arm

22
Q

Latissimus dorsi - insertion

A

Floor of bicipital groove(intertubercular groove) (Part of PLT)

23
Q

Latissimus dorsi - innervation

A

Thoracodorsal nerve (C6, C7, C8)

24
Q

Deltoid - insertion

A

Deltoid tuberosity of humerus

25
Q

Deltoid - origins (3)

A

Lateral 1/3 of clavicle, acromion, spine of scapula

26
Q

Deltoid - innervation

A

Axillary nerve (C5, C6)

27
Q

Deltoid - actions (5)

A

Abducts arm
Anterior fibers flex and medially rotate arm
Poster fibers extend and laterally rotate arm

28
Q

Supraspinatus - origin

A

Supraspinatous fossa

29
Q

Supraspinatus - Action

A

Abducts the arm (initiates abduction)

30
Q

Supraspinatus - insertion

A

Greater tubercle of humerus (superior facet)

Part of Rotator Cuff - SITS

31
Q

Supraspinatus - innervation

A

Suprascapular nerve (C4, C5, C6)

32
Q

Infraspinatus - origin

A

Infraspinous fossa

33
Q

Infraspinatus - action

A

Laterally rotates the arm

34
Q

Infraspinatus - insertion

A

Greater tubercle of humerus (middle facet)

Part of Rotator Cuff - SITS

35
Q

Infraspinatus - innervation

A

Suprascapular nerve (C5, C6)

36
Q

Teres minor - origin

A

Lateral border of scapula

37
Q

Teres minor - action

A

Laterally rotates the arm

38
Q

Teres minor - insertion

A

Greater tubercle of humerus (lowest facet)

Part of Rotator Cuff - SITS

39
Q

Teres minor - innervation

A

Axillary nerve (C5, C6)

Musculoskeleton - OINA's (6 decks)

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