Axilla/Shoulder joint/dorsal scapular space Flashcards

0
Q

The contents of the axilla are covered by the:

A

AXILLARY FASCIA

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1
Q

The axilla is bounded by 3 bones:

A

Anterior: Clavicle
Posterior: scapula
Medial: 1st rib

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2
Q

Refers to the lateral prolongation of the prevertebral fascia which extends up to the elbow and covers the contents of the axilla.

A

AXILLARY FASCIA

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3
Q

The rotator cuff muscles (SITS)

A

S supraspinatus
I infraspinatus
T teres MINOR
S subcsapularis

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4
Q

What will STABILIZE THE SHOULDER JOINT?

A

Tendons of the rotator cuff muscles

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5
Q

Weakest part of the shoulder joint & prone to dislocation?

A

INFERIOR

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6
Q

6 INTRINSIC MUSCLES OF THE SHOULDER

A
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Deltoid
Teres major
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7
Q

2 shoulder abductor

A

Supraspinatus

Deltoid

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8
Q

Main abductor of the shoulder

A

Deltoid

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9
Q

2 lateral rotator

A

Infraspinatus

Teres minor

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10
Q

2 medial rotator of the shoulder

A

Subscapularis

Teres major

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11
Q

Nerve Supply: Supraspinatus

A

SUPRASCAPULAR

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12
Q

Nerve supply: Teres minor

A

Axillary

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13
Q

Nerve supply: Deltoid

A

AXILLARY

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14
Q

Nerve supply: teres major

A

Lower subcsapular

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15
Q

Nerve supply: subscapularis

A

Upper subscapular

16
Q

Most commonly affected: inflammation of the rotator cuff

A

Tendon of the supraspinatus muscle

17
Q

Pain ANTERIOR & SUPERIOR to the shoulder joint during ABDUCTION means:

A

Tendons of the rotator cuff may be torn or inflamed.

18
Q

PBQ: 2 muscles supplied by the AXILLARY NERVE

A

Teres minor

Deltoid

19
Q

PBQ: injury to the AXILLARY NERVE, patient will have difficulty with 2 actions:

A
LATERAL ROTATION (Teres minor)
ABDUCTION. ( Deltoid)
20
Q

PBQ: tendon most commonly affected when torn or inflamed in the rotator cuff?

A

SUPRASPINATUS TENDON

21
Q

PBQ: injury to the shoulder joint dislocation, suspect what nerve is most commonly injured?

A

AXILLARY NERVE

22
Q

REM: Px has injury to the axillary nerve, how to test for the integrity of the axillary nerve?

A

Ask patient to ABDUCT AND LATERALLY ROTATE THE SHOULDER

23
Q

What are the 2 DORSAL SCAPULAR SPACES

A
  1. Quadrangular or Quadrilateral Space

2. Triangular Space

24
Q

Boundary of the QUADRANGULAR/QUADRILATERAL SPACE

ABOVE?

A

Teres minor

25
Q

Boundary of the QUADRANGULAR/QUADRILATERAL SPACE

BELOW?

A

Teres major

26
Q

Boundary of the QUADRANGULAR/QUADRILATERAL SPACE

Medially?

A

LONG HEAD OF THE BICEPS BRACHII

27
Q

Boundary of the QUADRANGULAR/QUADRILATERAL SPACE

Laterally?

A

Surgical neck of the humerus

28
Q

The Contentsof the QUADRANGULAR/QUADRILATERAL SPACE

A
Axillary nerve (also called: circumflex nerve)
POSTERIOR CIRCUMFLEX HUMERAL VESSELS
29
Q

The Contents of the TRIANGULAR SPACE

A

Circumflex scapular vessels

30
Q

The Contents of the TRIANGULAR SPACE

ABOVE?

A

Teres minor

31
Q

The Contents of the TRIANGULAR SPACE

BELOW?

A

Teres major

32
Q

The Contents of the TRIANGULAR SPACE

Laterally?

A

Long head of the biceps brachii

33
Q

The Long head of the biceps brachii in the QUADRANGULAR SPACE is located?

A

MEDIALLY

34
Q

The Long head of the biceps brachii in the TRIANGULAR SPACE is located?

A

LATERALLY