USAHS IFS 1 Unit 5 Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
glenohumeral joint The synovial ball-and-socket joint of the
shoulder
acromioclavicular joint the joint formed by the acromion of the
scapula
and the clavicle
This keeps the clavicle from Coracoclavicular ligament
subluxing superiorly during
movements at the glenohumeral
joint
A. Coraco-acromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coraco-humeral ligament
E. Glenohumeral ligaments
,This attaches from the greater Transverse humeral ligament
tubercle to the lesser tubercle. It
holds the thendon of the bicep
brachii in place when the GH joint
is
moving.
A. Coraco-acromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coraco-humeral ligament
E. Glenohumeral ligaments
This is a protective arch over the Coracoacromial ligament
humeral head. it is preventing
superior displacement from the
glenoid and is superior aspect of
the
subacromial space
A. Coracoacromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coracohumeral ligament
E. Glenohumeral ligaments
This inhibits anterior trnalsation of Glenohumeral ligaments
the humeral head in the GH joint.
It is
composed of 3 fibrous bands in
the
joint capsule
A. Coracoacromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coracohumeral ligament
E. Glenohumeral ligaments
,It envelops the supraspinatus and Coracohumeral ligament
subscapularis tendons as they
pass
within the subacromial space. It
adds
stabilization. This attaches from
the
coracoid to the greater tubercle.
A. Coracoacromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coracohumeral ligament
E. Glenohumeral ligaments
Difference between the anatomical In anatomical position the humeral head is
position of the humerus vs resting directed
position medially and superiorly and posteriorly due
to
natural retroversion it places the head of
the
humerus directly into the scapular plane
and
against the face of the glenoid fossa.
In resting position the humerus is
positioned in
internal rotation.
What is the scapular orientation 30-40 degrees anterior to the frontal plane
At what degree is the retroversion 30 degrees
of
the humeral head
, At what degree is the orientation of 20 degrees
the clavicle
What space is located under the subacromial space
coracoacromial ligament and
above
the humeral head
What does the subacromial space supraspinatus muscle and tendon, the
house subacromial
bursa
This facilitates movement of the subacromial bursa
supraspinatus tendon under the
coracoacromial arch & deltoid and
over the joint capsule of the GH
joint
& greater tubercle of the humerus.
What shoulder muscles are upper trap, levator scapulae, rhomboids
elevators
what muscles are the depressors lower trap, subclavius
what muscles are the protractors serratus anterior
what muscles are the retractors middle trapezius, rhomboids, lower
trapezius
Answers with Verified Solutions | Latest
Updated 2026
glenohumeral joint The synovial ball-and-socket joint of the
shoulder
acromioclavicular joint the joint formed by the acromion of the
scapula
and the clavicle
This keeps the clavicle from Coracoclavicular ligament
subluxing superiorly during
movements at the glenohumeral
joint
A. Coraco-acromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coraco-humeral ligament
E. Glenohumeral ligaments
,This attaches from the greater Transverse humeral ligament
tubercle to the lesser tubercle. It
holds the thendon of the bicep
brachii in place when the GH joint
is
moving.
A. Coraco-acromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coraco-humeral ligament
E. Glenohumeral ligaments
This is a protective arch over the Coracoacromial ligament
humeral head. it is preventing
superior displacement from the
glenoid and is superior aspect of
the
subacromial space
A. Coracoacromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coracohumeral ligament
E. Glenohumeral ligaments
This inhibits anterior trnalsation of Glenohumeral ligaments
the humeral head in the GH joint.
It is
composed of 3 fibrous bands in
the
joint capsule
A. Coracoacromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coracohumeral ligament
E. Glenohumeral ligaments
,It envelops the supraspinatus and Coracohumeral ligament
subscapularis tendons as they
pass
within the subacromial space. It
adds
stabilization. This attaches from
the
coracoid to the greater tubercle.
A. Coracoacromial ligament
B. Transverse humeral ligament
C. Coracoclavicular ligament
D. Coracohumeral ligament
E. Glenohumeral ligaments
Difference between the anatomical In anatomical position the humeral head is
position of the humerus vs resting directed
position medially and superiorly and posteriorly due
to
natural retroversion it places the head of
the
humerus directly into the scapular plane
and
against the face of the glenoid fossa.
In resting position the humerus is
positioned in
internal rotation.
What is the scapular orientation 30-40 degrees anterior to the frontal plane
At what degree is the retroversion 30 degrees
of
the humeral head
, At what degree is the orientation of 20 degrees
the clavicle
What space is located under the subacromial space
coracoacromial ligament and
above
the humeral head
What does the subacromial space supraspinatus muscle and tendon, the
house subacromial
bursa
This facilitates movement of the subacromial bursa
supraspinatus tendon under the
coracoacromial arch & deltoid and
over the joint capsule of the GH
joint
& greater tubercle of the humerus.
What shoulder muscles are upper trap, levator scapulae, rhomboids
elevators
what muscles are the depressors lower trap, subclavius
what muscles are the protractors serratus anterior
what muscles are the retractors middle trapezius, rhomboids, lower
trapezius
