Shoulder & Arm
Two actions in which the rhomboids and trapezius are synergists and one action in which they are antagonists?
Adduct and elevate the scapula-the trapezius upwardly rotates the scapula, while the rhomboids downwardly rotate it.
Coracoid process of the scapular, supraglenoid tubercle of scapula is the ORIGIN of what muscle?
Biceps brachii
The subscapularis tendon can be located between the two tendons of which muscle?
Biceps brachii
Tubersoity of the radius and aponeurosis of the biceps brachii is the INSERTION of what muscle?
Biceps brachii
The thin sheet of fascia extending from the distal biceps brachii tendon is called the _______ _______.
Bicipital aponeurosis
Flexing the shoulder and pulling it anteriorly whiel you palpate the pectoralis major in a sidelying position has which two benefits?
Brings the pectoralis major off the chest wall, allows breast tissue to fall away.
The pectoralis major is divided into three segments:
Clavicular, Sternal, Costal.
Coracoid process of the scapula is the ORIGIN of what muscle?
Coracobrachialis
Medial surface of mid-humeral shaft is the INSERTION of what muscle?
Coracobrachialis
Deltoid tuberosity is the INSERTION of what muscle?
Deltoid
If you follow the fibers of the infraspinatus laterally, they converge underneath which muscle?
Deltoid
Lateral one-third clavicle, acromion and spine of scapula is the ORIGIN of what muscle?
Deltoid
To access the supraspinatus tendon, you need to sink your thumb tip through which muscle?
Deltoid
To locate the supraspinatus and teres minor tnedons in a supine position, how would you position your partner's shoulder?
Fix the shoulder to 90 degrees, then horizontally adduct and laterally rotate the shoulder 10 degrees.
The four rotator cuff muscles encompass and stabilize the ____________ joint.
Glenohumeral
In which two directions do you want to move from the coracoid process to locate the subscapularis tendon?
Inferior and lateral.
Infraspinous fossa of the scapula is the ORIGIN of which muscle?
Infraspinatus
Greater tubercle of the humerus is the INSERTION of what three muscles?
Infraspinatus, Supraspinatus and Teres minor
Intertubercular groove of the humerus
Latissimus dorsi
Most of the serratus anterior is deep to the scapula and which two muscles?
Latissimus dorsi and pectoralis major
When accessing the subscapularis from a sidelying position, under what two muscles should you slide your thumb?
Latissimus dorsi, teres major
Passive lateral rotation of the shoulder would ______ the subscapularis
Lengthen
Medial border of scapula, between superior angle and superior portion of spine of scapula is the INSERTION of what muscle?
Levator scapula
TVP's of 1st -4th cervical vertebrae is the ORIGIN of what muscle?
Levator scapula
Which head of biceps brachii passes through the intertubercular groove?
Long head
What action could you ask your partner to do to gently contract the subscapularis?
Medially rotate the shoulder
To outline the distal tendon of the triceps brachii, which bony landmark do you want to locate?
Olecranon process
Crest of greater tubercle of humerus is the INSERTION of what muscle?
Pectoralis major
Medial half of clavicle, sternum and cartilage of 1st -6th ribs is the ORIGIN of what muscle?
Pectoralis major
In anatomical position, the coracobrachialis is deep to which two muscles?
Pectoralis major and anterior deltoid
Medial surface of coracoid process of the scapula is the INSERTION of what muscle?
Pectoralis minor
Third, fourth and fifth ribs is the ORIGIN of what muscle?
Pectoralis minor
Spinous processes of the T-2 and T-5 is the ORIGIN of what muscle?
Rhomboid major
medial border of the scapular between the spine of the scapula and inferior angle is he INSERTION of what muscle?
Rhomboid major
Spinous processes of C-7 and T-1 is the ORIGIN of what muscle?
Rhomboid minor
Upper portion of medial border of the scapula, across from spine of the scapula is the INSERTION of what muscle?
Rhomboid minor
Anterior surface of medial border of the scapula is the INSERTION of what muscle?
Serratus anterior
External surfaces of upper 8 or 9 ribs is the ORIGIN of what muscle?
Serratus anterior
A "winged scapula" often indicates weakness in which muscle?
Serratus anterior muscle
to access the medial portion of the subscapular fossa, how would you position your partner?
Sidelying, flex partners shoulder
What three bony landmarks can you lay your fingers along to isolate the belly of the infraspinatus?
Spine of the scapula, medial border, lateral border.
First rib and cartilage is the ORIGIN of what muscle?
Subclavius
Inferior surface of middle one-third of clavicle is the INSERTION of waht muscle?
Subclavius
The subscapularis is sandwiched between which fossa and which muscle?
Subscapular fossa and serratus anterior
Lesser tubercle of the humerus is the INSERTION of what muscle?
Subscapularis
Subscapular fossa of the scapula is the ORIGIN of which muscle?
Subscapularis
Supraspinatus fossa of the scapula is the ORIGIN of what muscle?
Supraspinatus
The only rotator cuff muscle not involved with rotation of the shoulder is the ________.
Supraspinatus
Crest of the lesser tubercle of the humerus is the INSERTION of what muscle?
Teres major
Inferior angle and lower one-third of lateral border of the scapula is the ORIGIN of what muscle?
Teres major
Upper two-thirds of lateral border of the scapula is the ORIGIN of what muscle?
Teres minor
You can distinguish the teres minor from the teres major by their sizes and actions. Explain..
Teres minor is smaller Teres major medially rotates the shoulder Teres minor laterally rotates the shoulder
The dense quality of the infraspinatus is due to its __________.
Thick, superficial fossa.
Lateral one-third of clavicle, acromion and spine of the scapula is the INSERTION of what muscle?
Trapezius
To locate the supraspinatus belly, you must palpate through which muscle?
Trapezius (upper body)
The rhomboids are deep to the _______ muscle and superficial to the ______ muscles.
Trapezius, Erector Spinae Muscles
Infralgenoid tubercle of the scapula, posterior surface of proximal half of the humerus and posterior surface of distal half of the humerus is the ORIGIN of what muscle?
Triceps brachii
Olecranon process of the ulna is the INSERTION of what muscle?
Triceps brachii
what is the best action to ask your partner to perfrom to feel the supraspinatus contract?
abduction of the scapula
when palpating the clavicle, the _______ end rises superiorly while the _______ end curves inferiorly.
acromial, sternal
Palpating laterally along the supraspinous fossa, our fingers will bump into which 2 bony structures?
acromion and clavicle
to feel the middle fibers of the trapezius contract, you could ask your partner to perfrom which action?
adduction of the scapula
what action can you ask your partner to perform in order to contract all fibers of the deltoid?
alternately abduct and release
the actions of the deltoid's anterior and posterior fibers make it an _______ to itself.
antagonist
The pectoralis minor has the potential to create neurovascular compression on wihch three vessels?
brachial plexus, axillary artery, axillary vein.
Accessing the infraglenoid tubercle can elicit tenderness. How can you palpate this landmark without causing pain?
by using your broad thumbpad.
three bones that make up the shoulder complex are the ______, ______ and ______.
clavicle, scapular, and humerus
If you follow the fibers of the pectoralis major laterally, they blend with the fibers of which muscle?
deltoid
As you follow the biceps brachii belly proximally, it becomes deep to which muscle?
deltoid (anterior fibers)
the coracoid process is often located in the _______ groove.
deltopectoral
the upper fibers of the trapezius elevate the scapula, so the lower fibers must ______ the scapula.
depress
An action to ask your partner to perform to feel the levator scapula contract is ________?
elevation of the scapula
What action could you ask yor partner to perfrom to feel the contraction of the long head of the triceps brachii?
extend their elbow (against your resistence)
Bilateral contraction of the upper fibers of the trapezius will create what movement of the head and neck?
extension
Can you name an everyday action in which you use your pectoralis major?
giving a hug
The humerus and scapula form the __________ joint.
glenohumeral
when palpating the latissium dorsi, how can you discern the muscle tissue from the superficial skin?
grasp tissue and let it slip through your fingers
what are the 3 muscles that attach to the greater turbercle of the humerus?
greater tubercle, lesser tubercle, intertubercular groove
with your partner prone, how can you best position your partner's hand to locate the inferior angle of the scapula?
in the small of his back
the 3 scapular fossae contain which 3 muslces?
infraspinous, supraspinous, subscapular
one palpatory distinction between the teres major and latissimus dorsi is tha the teres attaches to the _________ of the scapula
lateral border
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.
Inferior angle of scapula, spinous processes of last six thoracic vertebrae, last three or four ribs, thoracolumbar aponeurosis and posterior iliac crest is the ORIGIN of what muscle?
latissimus dorsi
Passive abduction of the shoulder would ________ the teres minor.
lengthen
Passive felxion of the shoulder would _______ the tricpes brachii.
lengthen
Passive medial rotation of the shoulder would ______________ the infraspinatus.
lengthen
Passive pronation of the forearm would ______ the biceps brachii.
lengthen
passive abduction of the scapula would ______ the middle fibers of the trapezius.
lengthen
passive abduction of the shoulder would ______ the coracobrachialis.
lengthen
passive extension of the shoulder would _______ the biceps brachii.
lengthen
passive flexion of the shoulder would ______ the latissimus dorsi.
lengthen
passive rotation of the head and neck to the left would ________ the left trap's upper fibers.
lengthen
the superior angle of the scapula serves as an attachment site for the _____________ muscle and is deep to the ______ Muscle.
levator scapula, trapezius
within the intertubercular groove lies the tendon of which muscle?
long head of the bicpes brachii
which portion of the latissimus dorsi is easy to grasp?
middle portion
To locate the belly of the coracobrachialis, from which muscle would you slide off and into the axilla?
pectoralis major
The serratus anterior abducts the scapula, making it a direct antagonist to the ______
rhomboids
sculpting a circle around the edges of the coracoid process can help you get a better understanding of its _____ and _____.
shape and size
Passive abduction of the shoulder would _____ the supraspinatus.
shorten
Passive adduction of the shoulder would _______ the teres major.
shorten
Passive medial rotation of the shoulder would ______ the latissimus dorsi and teres 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 elevation of the scapula would _____ the trap's upper fibers and _____ its lower fibers.
shorten, lengthen
the infraspinous fossa can be isolated by setting your fingers on which 3 bony landmarks?
spine of scapula, medial border, lateral border
a great base camp for locating other bony landmarks of the shoulder is the __________.
spine of the scapula
The levator scapula is situated between which two muscles on the lateral side of the neck?
splenius capitis, posterior scalene
the single attachment between the axial and upper appendicular skeletons is the ___________ joint.
sternoclavicular joint
the acromioclaviclar and sternoclavicular are what types of joints?
synovial
When accessing the lateral border of the scapula, through which two muscle bellies will you have to palpate?
teres major and teres minor
the long head of the triceps brachii weaves between which two muscles before attaching at the infraglenoid tubercle?
teres major and teres minor
Infraspinatus, Subscapularis, Supraspinatus and teres minor are the muscles of .....
the rotator cuff
External occipital protuberance, medial portion of superior nuchal line of the occiput, ligamentum nuchae and spinous porcesses of C-7 through T-12, is the ORIGIN of what muscle?
trapezius
the origin of the deltoid is identical to the insertion of which muscle?
trapezius
the acromion serves as an attachment site for which 2 muscles?
trapezius, deltoid muscle
An everyday action in wihch the biceps brachii's ability to supinate the forearm would come in handy?
turning a doorknob