ligaments

Question 1

interclavicular ligament

location and role

Answer 1

Runs from one medial head to the other medial head
Does not allow the medial heads of the clavicles to move away from each other

of sc joint

Question 2

costoclavicular ligament

location and role

Answer 2

Comes off 1st rib & runs up to medial head of clavicle
Prevents elevation of the medial head of the clavicle
strongest of 4 sc ligaments

of sc joint

Question 3

anterior sc ligament

location and role

Answer 3

attaches to manubrium of sternum
Covers front of SC joint
Prevents posterior displacement of medial head of clavicle

of sc joint

Question 4

posterior sc ligament

location and role

Answer 4

attaches to manubrium of sternum
Cover back of SC joint
Prevent anterior displacement of medial head of clavicle

of sc joint

Question 5

Acromioclavicular ligament

location and role

Answer 5

holds lateral head of clavicle against the acromion process
does not provide much stability, weak ligament
Lateral clavicle is flat
Thickens fibrous portion of capsule,

of ac joint

Question 6

Coracoclavicular ligament

location and role

Answer 6

major stabilizing ligament of ac joint
two components make a “V” - trapezoid and conoid
trapezoid is lateral anterior, conoid is medial posterior
connects coracoid process to clavicle
prevents medial displacement of scapula
prevents clavicle from going up

of ac joint

Question 7

Coracoacromial

location and role

Answer 7

Forms a roof over the Glenoid joint
Connects Coracoid Process to Acromion Process
No stabilizing properties

of ac joint