Anatomy & Physiology: Musculoskeletal System
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Questions and Answers

Which part of the human body is divided into the head, the neck, and the torso?

  • Pelvis
  • Upper extremities
  • Lower extremities
  • Trunk (correct)

What forms an integral part of the trunk in the human body?

  • Clavicles and scapulas
  • Abdomen and pelvis
  • Head and neck
  • Coxal bones and sacrum (correct)

Which joint connects the clavicle to the manubrium of the sternum?

  • Acromioclavicular joint
  • Glenohumeral joint
  • Scapulothoracic joint
  • Sternoclavicular joint (correct)

What is one of the most freely moveable areas in the human body due to the articulation at the glenohumeral joint?

<p>Shoulder (C)</p> Signup and view all the answers

Which part of the body is joined to the trunk by the pelvic girdle?

<p>Lower extremities (B)</p> Signup and view all the answers

What composes the shoulder girdle in the human body?

<p>Clavicle and scapula (A)</p> Signup and view all the answers

Which ligament primarily stabilizes the acromioclavicular joint?

<p>Coracoclavicular ligament (C)</p> Signup and view all the answers

What is the function of the labrum in the glenohumeral joint?

<p>Provides additional depth and stability to the humeral head (D)</p> Signup and view all the answers

Which bursa is located between the acromion, coracoacromial ligament, and deltoid superiorly and the supraspinatus tendon and glenohumeral joint capsule inferiorly?

<p>Subacromial bursa (B)</p> Signup and view all the answers

What is the main function of the rotator cuff muscles at the glenohumeral joint?

<p>Stabilize the joint capsule (C)</p> Signup and view all the answers

Which type of joint is the scapulothoracic joint?

<p>Not a true joint (B)</p> Signup and view all the answers

The humeral head articulates with which part of the scapula?

<p>Glenoid fossa (B)</p> Signup and view all the answers

What is the main function of the subacromial bursa?

<p>Cushioning between the rotator cuff tendons and the acromion (B)</p> Signup and view all the answers

Which movement involves upward lateral movement of humerus out to the side, away from the body, in the plane of the scapula?

<p>Abduction (B)</p> Signup and view all the answers

'Adduction' involves which type of movement?

<p>Downward movement of humerus medially toward the body from abduction, in the plane of the scapula (A)</p> Signup and view all the answers

Match the following body divisions with their components:

<p>Trunk/Axial body = Head, neck, and torso Upper &amp; Lower Extremities/Appendicular body = Shoulder girdle and pelvic girdle Anatomy of the shoulder = Clavicle and scapula Structure and Function of shoulder girdle = Sternoclavicular joint, acromioclavicular joint, scapulothoracic joint, glenohumeral joint</p> Signup and view all the answers

Match the following joints with their descriptions:

<p>Sternoclavicular joint = Synovial saddle joint that connects the clavicle to the manubrium of the sternum Acromioclavicular joint = Joint that stabilizes the clavicle and scapula Scapulothoracic joint = Joint between the scapula and thoracic wall Glenohumeral joint = Articulation between the scapula and proximal humerus</p> Signup and view all the answers

Match the following terms with their functions:

<p>Shoulder girdle = Provides stability and mobility to the upper limb Pelvic girdle = Joins the lower extremity to the trunk Subacromial bursa = Reduces friction between acromion, coracoacromial ligament, deltoid, supraspinatus tendon, and glenohumeral joint capsule Rotator cuff muscles = Provide dynamic stability to the glenohumeral joint during movement</p> Signup and view all the answers

Match the following joints with their descriptions:

<p>Acromioclavicular joint = Connects the acromion of the scapula to the clavicle Scapulothoracic joint = Articulation of the scapula gliding over the posterior thoracic cage Glenohumeral joint = Highly moveable ball-and-socket synovial joint stabilized by rotator cuff muscles Pelvic girdle = Connects the lower limb to the axial skeleton</p> Signup and view all the answers

Match the following ligaments with their primary function:

<p>Coracoclavicular ligament = Primary stabilizer of the acromioclavicular joint Superior acromioclavicular ligament = Secondary stabilizer of the acromioclavicular joint Inferior acromioclavicular ligament = Secondary stabilizer of the acromioclavicular joint Rotator cuff muscles = Stabilize the glenohumeral joint and attach to the joint capsule</p> Signup and view all the answers

Match the following movements with their descriptions:

<p>Abduction = Upward lateral movement of humerus out to the side, away from the body, in the plane of the scapula Adduction = Downward movement of humerus medially toward the body from abduction, in the plane of the scapula Flexion = Anterior movement of humerus Extension = Posterior movement of humerus</p> Signup and view all the answers

Match the following terms with their functions:

<p>Labrum = Provides additional depth and stability securing the humeral head in the glenoid fossa Bursae (subacromial-subdeltoid, subscapular, subcoracoid) = Surround and aid in mobility of the glenohumeral joint capsule and tendons</p> Signup and view all the answers

Match the following movements with their descriptions:

<p>External rotation = Lateral movement of humerus around its long axis away from the midline Internal rotation = Medial movement of humerus around its long axis toward the midline Horizontal adduction (transverse flexion) = Humerus movement toward and across the chest in a horizontal plane Horizontal abduction (transverse extension) = Humerus movement away from the chest in a horizontal plane</p> Signup and view all the answers

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