Skeletal
The ________ is the only bony structure through
which forces upon the upper limb are transferred to
the axial skeleton.
clavicle
Which structures are joined by the coracoclavicular joint?
the coracoid process and clavicle
The deltoid is innervated by the ________.
axillary nerve
Which fibers of the deltoid serve in shoulder abduction?
middle
The glenohumeral joint is a _________ between the head of the humerus and glenoid fossa of the scapula.
ball and socket synovial joint
The __________ is considered a "functional" joint because it involves the movement of the scapula relative to the rib cage, but it is not a true joint because it lacks the bony connections and synovial membrane found in skeletal joints.
scapulothoracic joint
The serratus anterior is innervated by the __________.
long thoracic nerve
Because only 1/3 of the head of the humerus is actually ever in contact with the glenoid fossa, the glenohumeral joint sacrifices ________ for ________.
stability, mobility
The three bones that make up the pectoral girdle are the:
clavicle, scapula, and humerus
All of the following are ________ ligaments: acromioclavicular ligament, coracoclavicular ligament, coracoacromial ligament, coracohumeral ligament
extra-capsular
Which two muscles are innervated by the suprascapular nerve?
the supraspinatus and infraspinatus muscles
Which back muscles serve as scapular retractors?
rhomboid minor, rhomboid major, and the middle trapezius fibers
The ________ can be thought of as a "beak" because it is a hooked, crow-shaped projection on the anterior surface of the scapula.
coracoid process
The 4 muscles of the rotator cuff are the:
supraspinatus, infraspinatus, teres minor, and subscapularis
The __________ innervates the pectoralis major but not the pectoralis minor.
lateral pectoral nerve
Which muscle serves in scapular protraction and upward rotation between 160 and 180 degress?
serratus anterior
If a patient presents with a sprain or tear of the acromioclavicular ligament they would have what is called a __________.
separated shoulder
What is the specific point of insertion of the pectoralis major?
LATERAL lip of the intertubercular groove of the humerus
The teres minor is innervated by the _________ while the teres major is innervated by the _________.
axillary nerve, lower subscapular nerve
Which muscle is primarily engaged during the following movement: abduction of the arm between 15 and 90 degrees from the body
deltoid