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AOIs > Palpation AOIs > Flashcards

Palpation AOIs Flashcards

1
Q

Trapezius

A

Origin:

  • Medial 1/3 of superior nuchal line
  • External occipital protuberance
  • Nuchal ligament
  • SPs of C7-T12

Insertion:

  • Acromion/spine of scapula
  • Lateral 1/3 of clavicle

Action:
[Descending fibers] elevate scapula
[Middle fibers] retract scapula
[Ascending fibers] depress scapula

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2
Q

Rhomboids

A

Origin:
[Major] SPs of T2-T5
[Minor] Nuchael ligament and SPs of C7-T1

Insertion:
[Major] Medial border of scapula from spine of scapula to inferior angle
[Minor] Smooth triangular area at medial end of scapular spine

Action:

  • Retract the scapula
  • Fix scapula to thoracic wall
  • Depress glenoid cavity inferiorly by rotating scapula
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3
Q

Levator scapulae

A

Origin:

  • Nuchal ligament
  • Posterior tubercles of C1-C4

Insertion:
-Medial border of scapula superior to root of spine

Action:

  • Elevates scapula
  • Depresses glenoid cavity inferiorly by rotating scapula
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4
Q

Latissimus dorsi

A

Origin:

  • Thoracolumbar fascia
  • Inferior 3-4 ribs
  • SPs T7/8-T12
  • Iliac crest

Insertion:
-Floor of intertuberculur surface of the humerus

Action:

  • Extends/adducts/medially rotates arm
  • Raises trunk to arm when climbing
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5
Q

Pectoralis minor

A

Origin:
-Coracoid process

Inserts:
-Ribs 3-5 near costal cartilages

Action:

  • Assists with deep inspiration
  • Stabilizes scapula by moving it inferoanteriorly
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6
Q

Infraspinatus

A

Origin:
-Infraspinous fossa of the scapula

Insertion:
-middle facet of greater tubercle of humerus

Action:
-Laterally rotates arm

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7
Q

Supraspinatus

A

Origin:
-Supraspinous fossa of the scapula

Insertion:
-Superior facet of greater tubercle of humerus

Action:
-Initiates abduction of the humerus; assists deltoid

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8
Q

Teres major

A

Origin:
-Lateral border of scapula at the inferior angle

Insertion:
-Medial lip of bicipital groove

Action:
-Medially rotates arm

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9
Q

Teres minor

A

Origin:
-Middle part of the lateral border of the scapula

Insertion:
-Inferior facet of the greater tubercle of the humerus

Action:
-Laterally rotates arm

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10
Q

Deltoid

A

Origin:

  • Acromion/spine of scapula
  • Lateral 1/3 of clavicle

Insertion:
-Deltoid tuberosity of humerus

Action:
[Anterior] medially rotates/flexes arm
[Middle] abducts arm
[Posterior] laterally rotates/extends arm
-Resists inferior displacement of GH joint

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11
Q

Biceps brachii

A

Origin:
[Long head] Supraglenoid cavity of the scapula
[Short head] Coracoid process

Insertion:

  • Radial tuberosity
  • Bicipital aponeurosis

Action:
-Flexes/supinates forearm

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12
Q

Brachialis

A

Origin:
-Distal half of anterior surface of humerus

Insertion:
-Coronoid process/tuberosity of ulna

Action:
-Flexes forearm in all directions

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13
Q

Coracobrachialis

A

Origin:
-Coracoid process of scapula

Insertion:
-Middle 1/3 of medial surface of humerus

Action:

  • Flexes shoulder
  • Adduction
  • Stabilizes GH joint
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14
Q

Triceps brachii

A

Origin:
[Long head]
Infraglenoid cavity of the scapula

[Lateral head] Posterior surface of humerus, superior to radial groove

[Medial head] Posterior surface of humerus, inferior to radial groove

Insertion:

  • Proximal end of olecranon
  • Fascia of forearm

Action:

  • Extends forearm
  • Long head stabilizes GH joint; assists shoulder extension/adduction
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15
Q

Subscapularis

A

Origin:
-Subscapular fossa of the scapula

Insertion:
-Lesser tubercle of the humerus

Action:
-Medially rotates humerus

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16
Q

Serratus anterior

A

Origin:
-External surfaces of lateral parts of ribs 1-8

Insertion:
-Anterior surface of the medial border of the scapula

Action:

  • Holds scapula against thoracic wall against resistance
  • Anchors scapula for movements of the humerus
  • Rotates scapula to elevate glenoid cavity
  • Protracts scapula when punching/reaching
17
Q

Pectoralis major

A

Origin:
[Sternal head]
-Anterior sternum
-Superior 6 costal cartilages

[Clavicular head]
-Anterior surface of the medial 1/2 of the clavicle

-Aponeurosis of the external oblique muscles

Insertion:
-Lateral lip of intertubercular sulcus of humerus

Action:
-Medially rotates/adducts arm

18
Q

Subclavius

A

Origin:
-Junction of 1st rib with its costal cartilage

Insertion:
-Middle 1/3 of the inferior surface of the clavicle

Action:
-Depresses/anchors clavicle

AOIs (6 decks)

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