shoulder and arm

the subscapularis tendon can be located between the two tendons of which muscle?

biceps brachii

the pectoralis minor has the potential to create neuromuscular compression on which three vessels?

1. brachial plexus 2. axillary artery 3. axillary vein

flexing the shoulder and pulling it anteriorly while you palpate the pectoralis major in a side lying position has which two benefits?

1. brings pectoralis off the chest wall 2. allows breast tissue to fall away

the pectoralis major is divided into three segments:

1. clavicular 2. costal 3. sternal

can you name two actions in which the rhomboids and trapezius are synergists and one action in which they are antagonists?

1. elevate scapula & adduct scapula 2. upward rotation of scapula by trapezius

when accessing the elevator scapula in a supine position, the benefits of rotating the head 45 degree away from the side you are palpating include:

1. gives levator more palpable tension 2. shifts cervicle TVPs further anterior 3. shortens & softens overlying trapezius

In which two directions do you want to move from the coracoid process to locate the subscapularis tendon?

1. lateral 2. inferior

when accessing the subscapularis from a side lying position, under what two muscles should you slide your thumb?

1. latissimus dorsi 2. teres major

Most of the serratus anterior is deep to the scapula and which two muscles?

1. latissimus dorsi 2. pectoralis major

What three bony landmarks can you lay your fingers along to isolate the belly of the infraspinatus?

1. spine of scapula 2. medial border 3. lateral border

the levator scapula is situated between which two muscles on the lateral side of the neck?

1. splenius capitis 2. posterior scalene muscles

the rhomboids are deep to the ________ muscle and superficial to the __________ muscles.

1. trapezius 2. erector spinae

accessing the medial portion of the serratus anterior by curling your fingers around the medial border of the scapula, your fingers will inherently have to work through the bellies of which two muscles?

1. trapezius 2. rhomboids

origin and insertion of trapezius

O: external occipital protuberance, medial portion of superior nuchal line of the occiput, ligamentum nuchae and spinous processes of C-7 though T-12

origin and insertion of teres major

O: inferior angle and lower 1/3 of lateral border of the scapula I: crest of the lesser tubercle of the humerus

origin and insertion of latissimus dorsi

O: inferior angle of scapula, spinous processes of last six thoracic vertebrae, last three or four ribs, thoracolumbar aponeurosis and posterior iliac crest I: inter tubercular groove of the humerus

origin and insertion for deltoid

O: lateral 1/3 of clavicle, acromion and spine of scapula I: deltoid tuberosity

origin and insertion of subscapularis

O: subscapular fossa I: lesser tubercle of humerus

origin and insertion of supraspinatus

O: supraspinatus fossa I: greater tubercle of the scapula

origin and insertion of teres minor

O: upper 2/3 of the lateral border of scapula I: greater tubercle of humerus

the subscapularis is sandwiched between which fossa and which muscle?

a. subscapular fossa b. serratus anterior

what action can you ask your partner to perform in order to contract all fibers of the deltoid?

abduct shoulder

what is the best action to ask your partner to perform to feel the supraspinatus contract?

abduction of shoulder

To feel the middle fibers of the trapezius contract, you could ask your partner to perform which action?

adduct scapula

the actions of the deltoid's anterior and posterior fibers make it an ___________ to itself.

antagonists

the most important aspect when palpating near breast tissue is:

communicating your intentions w/ your partner

If you follow the fibers of the infraspinatus laterally, they converge underneath which muscle?

deltoid

If you follow the fibers of the pectoralis major laterally, they blend with the fibers of which muscle?

deltoid

To access the supraspinatus tendon, you need to sink your thumb tip through which muscle?

deltoid

the upper fibers of the trapezius elevate the scapula, so the lower fibers must _________ the scapula.

depression

An action to ask your partner to perform to feel the levator scapula contract is ________?

elevation of scapula

bilateral contraction of the upper fibers of the trapezius will create that movement of the head and neck?

extension

to locate the infraspinatus and teres minor tendons in a supine position, how would you position your partner's shoulder?

flex shoulder 90 degrees, horizontally adduct and laterally rotate shoulder

the four rotator cuff muscles encompass and stabilize the _____________ joint

glenohumeral

when palpating the latissimus dorsi, how can you discern the muscle tissue from the superficial skin>

grab tissue and let it slip through your fingers

one palpatory distinction between the teres major and latissimus dorsi is that the teres attaches to the _________ of the scapula

lateral border

Passive abduction of the shoulder would ________ the teres minor.

lengthen

Passive lateral rotation of the shoulder would ______ the subscapularis

lengthen

passive abduction of the scapula would ______ the middle fibers of the trapezius.

lengthen

passive flexion of the shoulder would ______ the latissimus dorsi.

lengthen

passive medial rotation of the should would ____________ the infraspinatus.

lengthen

passive rotation of the head and neck of the left would ________ the left trapezius' upper fibers.

lengthen

what action could you ask your partner to do to gently contract the subscapularis?

medially rotate shoulder

which portion of the latissimus doors is easy to grasp?

middle portion

origin and insertion of infraspinatus

o: infraspinous fossa of scapula i: greater tubercle of humerus

Can you name an everyday action in which you use your pectoralis major?

push-ups

the serratus anterior abducts the scapula, making it a direct antagonist to the ____________-

rhomboids

Passive abduction of the shoulder would _______ the supraspinatus.

shorten

passive adduction of the shoulder would _______ the trees major

shorten

passive flexion of the shoulder would ______ the anterior fibers of the deltoid.

shorten

passive lateral rotation of the shoulder would _______ the deltoids posterior fibers.

shorten

passive medial rotation of the shoulder would ________ the latissimus dorsi and teres major

shorten

Passive elevation of the scapula would ________ the trapezius upper fibers _______ its lower fibers.

shorten, lengthen

the dense quality of the infraspinatus is due to its _____________

superficial fascia

The only rotator cuff muscle not involved with rotation of the shoulder is the ________.

supraspinatus

flexion of the shoulder

synergist: biceps brachii, coracobrachialis antagonist: latissimus dorsi

horizontal abduction of shoulder

synergist: deltoid antagonist: pectorals major, deltoid

extension of shoulder

synergist: deltoid, latissimus dorsi antagonist: biceps brachii

abduction of shoulder

synergist: deltoid, supraspinatus antagonist: pectoralis major

elevation of scapula

synergist: rhomboid major/minor, elevator scapula antagonist: serrates anterior

depression of scapula

synergist: serrates anterior, pectorals minor antagonist: rhomboid major/minor

medial/internal rotation of shoulder

synergist: subscapularis, pectoralis major antagonist: infraspinatus

upward rotation of scapula

synergist: trapezius, serratus anterios antagonist: rhomboid major/minor

horizontal adduction of shoulder

synergists: deltoid, pectoralis major antagonist: deltoid

lateral external rotation of shoulder

synergists: deltoid, teres minor antagonist: subscapularis

adduction of shoulder

synergists: infraspinatus, trees major/minor, triceps brachii antagonist: supraspinatus

downward rotation of scapula

synergists: rhomboid major/minor, elevator scapula antagonist: trapezius

abduction/protraction of scapula

synergists: serrates anterior, pectoralis minor antagonist: rhomboid major/minor

adduction/retraction of scapula

synergists: trapezius, rhomboid major and rhomboid minor antagonist: pectoralis minor

You can distinguish the teres minor from the teres major by their sizes and actions. Explain..

teres minor: -laterally rotates shoulder -small teres major: - medially rotates shoulder

The origin of the deltoid is identical to the insertion of which muscle?

trapezius

To locate the supraspinatus belly, you must palpate through which muscle?

trapezius