Shoulder and Arm

how many muscles attach to the scapula

17

the action of the deltoid's anterior and posterior fibers make it ____ to itself

antagonist

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

latissimus dorsi and pectoralis major

The dense quality of the infraspinatus is due to its __________.

multipennate fibers

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

shifts cervical TVP anterior gives levator more tension softens trapezius

the four rotator cuff muscles encompass and stabilize the _____ joint

shoulder

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

trapezius, sternocleidomastoid

can you name an everyday action in which the biceps brachii's ability to supinate the forearm would come in handy

turning a door knob

Accessing the infraglenoid tubercle can elicit tenderness. How can you palpate this landmark without causing pain?

using your thumb pad

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

biceps brachii

the coracoid process is often located in the ____ groove

deltopectoral

How can you position the shoulder to bring the belly of the coracobrachialis to a superficial position?

laterally rotate and abduct the shoulder to 45 degrees.

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

latissimus dorsi teres major

Which head of the biceps brachii passes through the intertubercular groove?

long head

Within the intertubercular groove lies the tendon of which muscle?

long head of the bicpes brachii

To locate the subscapular fossa in a sidelying position, you slowly sink your thumb onto the fossa's surface. What can your other hand do to help access the fossa?

move arm and scapula into a better position

to outline the distal tendon of the triceps brachii which bony landmark do you want to locate

olecranon process

To locate the belly of the coracobrachialis, from which muscle would you slide off and into the axilla?

pectoralis major

a winged scapula often indicates weakness in which muscle

serratus anterior

to access the medial portion of the subscapular fossa, how would you position your partner?

side lying

sculpting a circle around the edges of the coracoid process can help you get a better understanding of its _____ and _____.

size and shape

With your partner prone, how can you best position your partner's hand to locate the inferior angle of the scapula?

small of back

a great base camp for locating other bony landmarks of the shoulder is the __________.

spine of scapula

the pectoralis major is divided into three segments

sternal, clavicular, costal

the single attachment between the axial and upper appendicular skeletons is the ___________ joint.

sternoclavicular

which portion of the latissimus dorsi is easy to grasp?

the middle portion

the subscapularis is sandwiched between which fossa and which muscle

Subscapular fossa and serratus anterior

the rhomboids are deep to the ____ muscle and superficial to the ____ muscles

Trapezius, Erector Spinae Muscles

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

abduct slightly then relax

when palpating the clavicle the ____ end rises superiorly while the ____ end curves inferiorly

acromion sternal

Palpating laterally along the supraspinous fossa, your fingers will bump into which two bony structures?

acromion and clavicle

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

adduct, elevate, rotation

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

deltoid

if you follow the fibers of the pectoralis major laterally they blend in with the fibers of which muscle

deltoid

the serratus anterior abducts the scapula making it a direct antagonist to the

rhomboids

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?

rhomboids and trapezius

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

rotate shoulder medially

long head of triceps brachii weaves between which two muscles before attaching at the infraglenoid tubercle

teres major and teres minor

the thin sheet of fascia extending the distal biceps brachii tendon is called the

bicipital aponeurosis

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

brachial plexus, axillary artery, axillary vein

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

bring shoulder up off of table

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

brings pectoralis off of chest breast tissue falls away

Three bones that make up the shoulder complex are the

clavicle, scapula, humerus

the most important aspect when palpating near breast tissue is

communicating your intentions

As you follow the biceps brachii belly proximally, it becomes deep to which muscle?

deltoid

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

deltoid

the upper fibers of the trapezius elevate the scapula so the lower fibers must _____ the scapula

depress

To feel the acromioclavicular joint space widen slightly and then diminish, you can ask your partner to do which two movements of the scapula?

elevate depress

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

elevation of scapula

what action could you ask your partner to perform to feel the contraction of the long head of the triceps brachii

extend elbow against resistance

bilateral contraction of the upper fibers of the trapezius will create what 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 to 90 horizontally adduct laterally rotate

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

giving a hug

the humerus and scapula form the ____ joint

glenohumeral

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

inferior and lateral

the scapular fossae contain which three muscles

infraspinatus supraspinatus subscpular

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

lateral border

the superior angle of the scapula serves as an attachment site for the _____ muscle and is deep to the ____ muscle

levator scapula trapezius

in anatomical position the coracobrachialis is deep to which muscles

pectoralis major deltoid

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

spine, medial border, lateral border

what are the three muscles that attach to the greater tubercle of the humerus

supraspinatus, infraspinatus, teres minor

the acromioclavicular and sternoclavicular are what types of joints

synovial

when accessing the lateral border of the scapula through which two muscles bellies will you have to palpate

teres minor teres major

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

teres minor is smaller and laterally rotates shoulder

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

texture

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

The acromion serves as an attachment site for which two muscles?

trapezius and deltoid