ANAT1019 MIDSEM REGIONAL CONTENT UPDATED Exam Questions and CORRECT Answers

ANAT1019 MIDSEM REGIONAL
CONTENT UPDATED Exam Questions and
CORRECT Answers
To position the upper extremity in space - CORRECT ANSWER - What is the primary
function of the shoulder complex?


30-45 degrees
The scapular plane is a normal position for the scapula and the scapula plane can be used to test
muscles - CORRECT ANSWER - State and describe the Scapular Plane


- elevation and depression
- protraction and retraction

- posterior (upward) and anterior (downward) rotation - CORRECT ANSWER - List the
movements of the Clavicle


- elevation and depression

- abduction (protraction) and adduction (retraction) - CORRECT ANSWER - List the Sliding
(translations) movements of the Scapula


- upward/superior/lateral rotation= glenoid fossa points upwards
- downward/inferior/medial rotation= glenoid fossa points downwards - CORRECT
ANSWER - List the Rotational movements of the Scapula


The stubby medial end of the clavicle and the sternum and 1st costal cartilage - CORRECT
ANSWER - State the articulation surfaces of the Sternoclavicular Joint


S: Synovial Saddle

F: Biaxial diarthrosis - CORRECT ANSWER - What type of joint is the Sternoclavicular
Joint?

,It increases the depth/size of socket to accept the medial end of the clavicle - CORRECT
ANSWER - What is the function of the Intra-articular disc?



Costoclavicular ligament - CORRECT ANSWER - What limits/resists Sternoclavicular
elevation?


First rib and interclavicular ligament - CORRECT ANSWER - What limits/resists
Sternoclavicular depression?


Posterior sternoclavicular ligament and costoclavicular ligament - CORRECT ANSWER -
What limits/resists Sternoclavicular protraction?


Anterior sternoclavicular ligament and costoclavicular ligament - CORRECT ANSWER -
What limits/resists Sternoclavicular retraction?


Interclavicular and costoclavicular ligament - CORRECT ANSWER - What limits/resists
lateral displacement of the clavicle?


Articular disc and costoclavicular ligament - CORRECT ANSWER - What limits/resists
medial displacement of the clavicle?


Distal/lateral end of clavicle and the medial aspect of acromoin process (part of the scapula) -
CORRECT ANSWER - State the articulation surfaces of the Acromioclavicular Joint



S: Synovial Plane Joint - CORRECT ANSWER - What type of joint is the Acromioclavicular
Joint?


> Vertical Fibres (on a specimen)

- suspends scapula and resists superior glide of lateral clavicle - CORRECT ANSWER -
Describe the Conoid Ligament

, > Horizontal Fibres (on a specimen)

- resists medial glide of the scapula relative to the clavicle - CORRECT ANSWER - Describe
the Trapezoid Ligament


Because it is a consequence of a ligament tightening - CORRECT ANSWER - Why is
rotation of the clavicle termed conjunct rotation?


- links scapula and clavicle
- tightening pulls conoid tubercle inferiorly thus causes upward rotation of clavicle - CORRECT
ANSWER - Explain how the Conoid ligament produces upward rotation of the clavicle


- Mechanism: direct fall onto point of shoulder

- most common in middle 1/3 of clavicle - CORRECT ANSWER - Describe a fracture of the
Clavicle


-Mechanism: fall onto point of shoulder

- affects Ac and CC ligaments - CORRECT ANSWER - Describe an Acromioclavicular Joint
dislocation


-Mechanism: Fall onto point of shoulder or direct blow
- can dislocate in anterior or posterior direction

- not very common due to location - CORRECT ANSWER - Describe a Sternoclavicular Joint
dislocation


S: Synovial ball and socket

F: Multiaxial diarthrosis - CORRECT ANSWER - What type of joint is the Glenohumeral
Joint?