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anatomy Unit 3 > Shoulder > Flashcards

Shoulder Flashcards

1
Q

shoulder innervation

A

C6-C8

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2
Q

Innervation to pec major

A

medial and lateral pectoral nerves

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3
Q

pec minor origin

A

ribs 3-5

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4
Q

pec minor nerve

A

medial pectoral

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5
Q

action of pec minor

A

scapular protraction and depression

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6
Q

origin of serratus anterior

A

ribs 1-8

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7
Q

action of serratus

A

protraction and upward rotation

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8
Q

primary cause of winging scap

A

LTN injury

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9
Q

◊ Supplies pectoral muscles and deltoid

A

• Thoracoacromial artery

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10
Q

• Lateral thoracic artery

A

◊ Courses with the long thoracic nerve

◊ Supplies serratus anterior and pectoral muscles

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11
Q

innervation to back muscles

A

C5-C7

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12
Q

Trapezius origin

A

occipital bone, nuchal ligament, thoracic spinous processes

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13
Q

Trapezius insertion

A

clavicle, acromion, spine of scapula

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14
Q

trap does what rotation on scap

A

upward (along with serratus)

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15
Q

lower trap does what to scapula

A

depression

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16
Q

Levator scapulae

A

elevation

DOWNWARD rotation

17
Q

innervation to levator and rhomboids

A

dorsal scaular nerve

18
Q

Rhomboid minor and Rhomboid major

Origin

A

nuchal ligament, thoracic spinous processes

19
Q

Rhomboid minor and Rhomboid major action

A

retraction and downward rotation of scapula

20
Q

what muscles downward rotate scap

A

levator

rhomboids

21
Q

what muscles upward rotate scap

A

serratus

trapezius

22
Q

3 actions of lat

A

extension, adduction, and medial rotation of GHJ

23
Q

nerve to the lat

A

thoracodorsal nerve

24
Q

thoracodorsal nerve innervates what (2)

A
  1. lat
25
Q

innervation to deltoid

A

axillary nerve

26
Q

Lesion of the ? can be tested by palpation of the deltoid muscle while abducting against resistance (after initial 15º) & by loss of skin sensation (pain, temperature, touch) on lateral aspect of shoulder

A

axillary nerve

27
Q

innervation to teres major

A

lower subscapular nerve

28
Q

Teres major action

A

medial rotation and adduction of GHJ

29
Q

supraspinatus innervation

A

suprascapular nerve

30
Q

Innervation to infraspinatous

A

suprascapular nerve

31
Q

innervation to teres minor

A

axillary nerve

32
Q

innervation to subscapularis

A

upper and lower subscapular nerves

33
Q

◊ Transverse cervical artery

gives off what two branches

A
  1. superficial

2. Deep- dorsal scapular

34
Q

Thyrocercical trunk gives off what two branches

A
  1. Transverse cervical
    1a. superficial
    1b. Deep (dorsal scapular)
  2. Suprascapular
35
Q

what structures travel though the suprascapular notch

A
  1. suprascaular artery

2. Suprascapular nerve

anatomy Unit 3 (7 decks)

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