Pectoral Girdle Bones Quiz

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Questions and Answers

Which bones make up the pectoral girdle?

  • Scapula and humerus
  • Clavicle and scapula (correct)
  • Radius and ulna
  • Humerus and radius

Which bone in the pectoral girdle is directly attached to the axial skeleton?

  • Humerus
  • Clavicle (correct)
  • Radius
  • Scapula

What allows the scapula to move freely?

  • Attachment to the ulna
  • Attachment to the humerus
  • Not attached to the axial skeleton (correct)
  • Attachment to the clavicle

Which of the following bones is NOT part of the pectoral girdle?

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

What is the function of the pectoral girdle?

<p>To connect the upper limbs to the axial skeleton (C)</p> Signup and view all the answers

Which bone in the pectoral girdle is commonly known as the collarbone?

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

Which bone in the pectoral girdle is commonly known as the shoulder blade?

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

Which ligament attaches to the costoclavicular ligament?

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

What is the patient position for palpating the acromion?

<p>Seated (D)</p> Signup and view all the answers

Which muscle attaches to the superior surface of the clavicle?

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

What landmark should be used to locate the coracoid process?

<p>SP C7 (A)</p> Signup and view all the answers

Which muscle attaches to the medial border of the scapula?

<p>Serratus Anterior (D)</p> Signup and view all the answers

What is the patient position for palpating the inferior angle of the scapula?

<p>Prone (D)</p> Signup and view all the answers

Which muscle attaches to the superior angle of the scapula?

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

Which joint connects the axial skeleton and the upper limb?

<p>Sternoclavicular joint (A)</p> Signup and view all the answers

What type of bone is the clavicle?

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

Which part of the clavicle articulates with the acromion of the scapula?

<p>Lateral 1/3 (D)</p> Signup and view all the answers

What ligaments make up the coracoclavicular ligament?

<p>Trapezoid ligament and conoid ligament (D)</p> Signup and view all the answers

Which muscle attaches to the supraspinous fossa of the scapula?

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

What is the bony projection off of the anterior scapula called?

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

Where does the humerus articulate with the scapula?

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

Which bone landmark is located on the lateral border of the scapula?

<p>Infraglenoid Tubercle (D)</p> Signup and view all the answers

What is the patient position for palpating the triceps brachii?

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

Which fossa is outlined by moving superiorly from the spine of the scapula and curling fingers deep in the concave area of the bone?

<p>Infraspinous Fossa (A)</p> Signup and view all the answers

What is the patient position for palpating the infraspinatus?

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

Which bone landmark is used to explore the lateral aspect of the subscapular fossa?

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

What is the patient position for palpating the subscapularis?

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

Which bone landmark is located on the medial border of the scapula?

<p>Suprascapular Notch (D)</p> Signup and view all the answers

What is the patient position for palpating the supraspinatus?

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

Which fossa is outlined by moving inferolateral to the medial border and curling fingers onto the anterior surface of the scapula?

<p>Subscapular Fossa (A)</p> Signup and view all the answers

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Study Notes

Pectoral Girdle Bones

  • The pectoral girdle consists of the scapulae and clavicles.

Connection to Axial Skeleton

  • The clavicle is directly attached to the axial skeleton.

Scapula Mobility

  • The scapula is able to move freely due to the presence of the sternoclavicular joint and the acromioclavicular joint.

Pectoral Girdle Function

  • The function of the pectoral girdle is to provide a base of attachment for the muscles of the upper limb.

Bone Identification

  • The clavicle is commonly known as the collarbone.
  • The scapula is commonly known as the shoulder blade.

Ligaments and Attachments

  • The costoclavicular ligament attaches to the first rib.
  • The coracoclavicular ligament is made up of the trapezoid ligament and the conoid ligament.
  • The supraspinatus muscle attaches to the supraspinous fossa of the scapula.
  • The levator scapulae muscle attaches to the superior angle of the scapula.
  • The rhomboid muscle attaches to the medial border of the scapula.

Landmarks and Palpation

  • The coracoid process can be located by following the clavicle laterally.
  • The acromion is located on the lateral border of the scapula.
  • The inferior angle of the scapula can be palpated with the patient in a standing position.
  • The triceps brachii muscle can be palpated with the patient in a relaxed position.

Joints and Articulations

  • The humerus articulates with the scapula at the glenohumeral joint.
  • The clavicle articulates with the acromion of the scapula at the acromioclavicular joint.

Bone Characteristics

  • The clavicle is a long bone.

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