All that and a bag of chips.
T/F Serratus anterior protracts the scapular and so is an antagonist to the rhomboids in scapular retraction.
True
This muscle is the superficial and largest muscle of the anterior chest wall, it is a thick, fan-shaped muscle:
pectoralis major
The actions of this muscle is to extend, adduct, and medially rotate the arm at the shoulder joint and to draw the arm inferiorly and posteriorly.
Latissimus dorsi
The subscapular muscle originates on the subscapular fossa but what is its nerve?
subscapular nerve
Which part of the scapula serves as an attachment site for both the rhomboids and serratus anterior?
medial border
Which muscle is called “lat’s twin?”
teres major
This posterior thoracic muscle originates at the superior nuchal line and spinous processes of cervical and thoracic vertebrae:
trapezius
Which muscle extends the humerus?
(not pec major, deltoid, triceps or teres major)
Latissimus Dorsi
Which shoulder movement would shorten the fibers of the teres major?
Adduction
The lateral border of the scapula serves as an attachment site for which muscles?
teres major and minor
T/F The deltoid muscle is completely superficial.
True
Due to its origin on ribs 3-5 this muscle is an accessory breathing muscle:
pectoralis minor
Which muscle helps to create downward rotation of the scapula?
levator scapulae
The pectoralis minor attaches to which bony landmark?
coracoid process
What attachment site do the trapezius and deltoid muscles have in common?
acromion
T/F The deltoid's anterior fibers horizontally abduct the shoulder.
False
The three scapular fossae contain which three muscles?
infraspinatus, supraspinatus and subscapularis
What is an action of all fibers of the deltoid?
Abduct the shoulder
A client suffering a “kink in their neck” after sleeping awkwardly on their pillow will witness injury to the –
levator scapulae
What is the insertion of the latissimus dorsi?
intertubercular groove of the humerus
Which muscle is divided into three segments: clavicular, sternal and costal?
pectoralis major
Which rotator cuff muscle is not involved in rotation of the shoulder?
Supraspinatus
Bilateral contraction of the upper fibers of the trapezius will create what movement of the head and neck?
Extension
Which muscle is located in the space between the vertebral column and scapula?
rhomboids
Which of the rotator cuff muscles attach to the lesser tubercle?
subscapularis