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PT 601560 Anatomy Unit 1 > Dorsal Scapular Region POINAS > Flashcards

Dorsal Scapular Region POINAS Flashcards

1
Q

Deltoid (Purposeful Activities)

A

Doing yoga poses with arms overhead (all fibers), reaching for (anterior fibers) and putting on (posterior fibers) a seat belt

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2
Q

Deltoid Clavicular [anterior] (Main Actions)

A

Flexes and medially rotates arm

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3
Q

Deltoid Acromial [middle] (Main Actions)

A

Abducts arm

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4
Q

Deltoid Spinal [posterior] (Main Actions)

A

extends and laterally rotates arm

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5
Q

Deltoid (Proximal Attachments)

A

Lateral 1/3 clavicle, acromion, and spine of scapula (begins where the trap ends)

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6
Q

Deltoid (Distal Attachments)

A

(somewhere on humerous) ill update later

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7
Q

Deltoid (Nerve Innervation)

A

Axillary nerve (C5, C6)

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8
Q

Pectoralis Major (Purposeful Activity)

A

Reaching across the body into an overhead cabinet, putting on a seatbelt

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9
Q

Pectoralis Major (Main Actions)

A

Addults and medially rotates humerus; draws scapula anteriorly and inferiorly: HADD/ horizontal adduction

Acting alone, calvicular head flexes humerus and sternocostal head extends it from the flexed position

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10
Q

Pectoralis Major (Proximal Attachments)

A
  • Clavicular head: medial half of clavicle
  • Sternocostal head: anterior surface of sternum, superior six costal cartilages, and external oblique muscle
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11
Q

Pectoralis Major (Distal Attachments)

A

Lateral hip of intertubercular sulcus of humerus

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12
Q

Pectoralis Major (Nerve Innervation)

A

Lateral and medial pactoral nerves; clavicular head (C5, C6) and sternocostal head (C7, C8, T1)

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13
Q

Pectoralis Mnior (Purposeful Activities)

A

Taking a deep breath, walking with crutches

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14
Q

Pectoralis Minor (Main Actions)

A

Stabilizes scapula by drawing it inferiorly and anteriorly against thoracic wall

With the scapula fixed: assists to elevate the thorax during forced inhalation

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15
Q

Pectoralis Minor (Proximal Attachments)

A

Third, fourth, and fifth ribs near their costal cartilage

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16
Q

Pectoralis Minor (Distal Attachments)

A

Coracoid process

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17
Q

Pectoralis Minor (Nerve Innervation)

A

Medial pectoral nerve (C8, T1); lateral pectoral nerve (variable innervation)

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18
Q

Infraspinatus (Purposeful Activities)

A

Playing racket sports or table tennis

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19
Q

Infraspinatus (Main Actions)

A
  • Externally rotate the shoulder (GHJ)
  • MAIN EXTERNAL ROTATOR
  • Stabilize the head of the humerus in glenoid cavity along with the other SITS muscles
20
Q

Infraspinatus (Proximal Attachments)

A

I missed this in lecture my bad

21
Q

Infraspinatus (Distal Attachments)

A

Middle facet of greater tubercle of humerus

22
Q

Infraspinatus (Nerve Innervation)

A

Suprascapular nerve (C5, C6)

23
Q

Teres Major (Purposeful Activities)

A

Toileting and perineal care

24
Q

Teres Major (Main Actions)

A
  • Adduct the shoulder (GHJ)
  • Internally rotate the shoulder (GHJ)
25
Q

Teres Major (Proximal Attachments)

A

Posterior surface of inferior angle of the scapula

26
Q

Teres Major (Distal Attachments)

A

Medial lip of intertubercular sulcus of the humerus

27
Q

Teres Major (Nerve Innervation)

A

Lower subscapular nerve (C5, C6)

28
Q

Supraspinatus (Purposeful Activities)

A

Painting overhead or washing your hair

29
Q

Supraspinatus (Main Actions)

A
  • Initiates and assists deltoid in abduction of arm
  • Stabilize the head of humerus in glenoid cavity, along with other SITS muscles
30
Q

Supraspinatus (Proximal Attachments)

A

Supraspinous fossa of the scapula

31
Q

Supraspinatus (Distal Attachments)

A

Greater tubercle of humerus

32
Q

Supraspinatus (Nerve Innervation)

A

Suprascapular nerve (C4, C5, C6)

33
Q

Teres Minor (Purposeful Activities)

A

Washing the back of head and neck

34
Q

Teres Minor (Main Actions)

A
  • Externally rotate the shoulder (GHJ)
  • Stabilize the head of humerus in glenoid cavity
35
Q

Teres Minor (Proximal Attachments)

A

Lateral border of the scapula

36
Q

Teres Minor (Distal Attachments)

A

Greater tubercle of humerus

37
Q

Teres Minor (Nerve Innervation)

A

Axillary nerve (C5, C6)

38
Q

Subscapularis (Purposeful Activities)

A

Toileting, donning a bra, or throwing a baseball

39
Q

Subscapularis (Main Actions)

A
  • Internally rotate the shoulder (GHJ)
  • Stabilize the head of humerus in glenoid cavity
40
Q

Subscapularis (Proximal Attachments)

A

Subscapular fossa

41
Q

Subscapularis (Distal Attachments)

A

Lesser tuberosity of humerus

42
Q

Subscapularis (Nerve Innervation)

A

Upper and lower subscapular (C5,C6,C7)

43
Q

Serratus Anterior (Purposeful Activities)

A

Pushing open a heavy door

44
Q

Serratus Anterior (Main Actions)

A
  • Protracts the scapula (ST joint) ex: serratus punches
  • Upwardly rotates the scapula (ST joint)
  • Holds scapula against thoracic wall
45
Q

Serratus Anterior (Proximal Attachments)

A

Lateral parts of upper 8 or 9 ribs

46
Q

Serratus Anterior (Distal Attachments)

A

Anterior surface of medial border of scapula

47
Q

Serratus Anterior (Nerve Innervation)

A

Long thoracic nerve (C5, C6, C7)
SALT (Serratus Anterior, Long Thoracic)

PT 601560 Anatomy Unit 1 (10 decks)

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