Thoracic Limb Joints
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Questions and Answers

Which bony prominence on the humerus is the origin of the supraspinatus muscle?

  • Lesser tubercle
  • Greater tubercle (correct)
  • Deltoid tuberosity
  • Teres major tuberosity

Which of the following is NOT a joint that makes up the elbow joint?

  • Humeroulnar
  • Proximal radioulnar
  • Glenohumeral (correct)
  • Humeroradial

Which muscle causes flexion of the shoulder joint?

  • Supraspinatus
  • Infraspinatus
  • Deltoid
  • Teres major (correct)

What is the function of the acromion process of the scapula?

<p>Articulates with the clavicle (B)</p> Signup and view all the answers

Which bony prominence on the humerus is the insertion point for the teres major muscle?

<p>Teres major tuberosity (B)</p> Signup and view all the answers

What type of joint is the shoulder (glenohumeral) joint?

<p>Ball-and-socket joint (B)</p> Signup and view all the answers

What is the primary action of the biceps brachii muscle?

<p>Flex the elbow and extend the shoulder (A)</p> Signup and view all the answers

Which ligament is located on the lateral side of the elbow joint?

<p>Lateral collateral ligament (A)</p> Signup and view all the answers

What is the function of the supinator muscle?

<p>Supinate the antebrachium (turn inward) (B)</p> Signup and view all the answers

Which of the following structures is NOT part of the elbow joint?

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

What is the primary function of the triceps brachii muscle?

<p>Extension of the elbow (D)</p> Signup and view all the answers

Which joint is formed between the distal radius/ulna and the carpal bones?

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

Which muscle originates from the medial epicondyle of the humerus and inserts on the cranial radius?

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

What is the primary action of the lateral collateral ligament in the dog's elbow joint?

<p>Stabilization of the elbow joint (A)</p> Signup and view all the answers

Which joint is located between the two rows of carpal bones in a dog's limb?

<p>Middle carpal joint (B)</p> Signup and view all the answers

In a dog's elbow joint, which structure serves as the insertion point for the biceps brachii muscle?

<p>Radial and Ulnar Tuberosity (A)</p> Signup and view all the answers

Which muscle is responsible for extending the elbow and flexing the shoulder in a dog's limb?

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

What is the specific action of the carpal joints in a dog's limb?

<p>Extension of the carpus (B)</p> Signup and view all the answers

What joint in the thoracic limb is also known as the scapulohumeral joint?

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

Which muscle is responsible for shoulder extension?

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

What structure connects the humerus and the scapula at the shoulder joint?

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

Which bony prominence on the scapula is located where muscles like Supraspinatus originate?

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

Which action is primarily responsible for shoulder flexion?

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

Which term describes the joint formed between the distal radius/ulna and carpal bones?

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

What is the scientific term for a 'ball and socket joint' in the human shoulder?

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

Which bony prominence on the scapula is crucial for the origin of the Teres Major muscle?

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

What is the primary action of the Teres Major muscle in the front limb of a dog?

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

Which specific part of the humerus serves as the insertion point for the Supraspinatus muscle in a dog's limb?

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

In a dog's front limb, which muscle is primarily responsible for shoulder extension?

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

Which of the following joints is NOT part of the elbow joint in a dog's limb?

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

What is the primary function of the medial collateral ligament in a dog's elbow joint?

<p>Stabilize the joint during extension (A)</p> Signup and view all the answers

Which muscle originates from the lateral epicondyle of the humerus and inserts on the cranial radius?

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

What is the action of the triceps brachii muscle in a dog's limb?

<p>Flex the shoulder and extend the elbow (B)</p> Signup and view all the answers

Which joint is located between the distal radius/ulna and the carpal bones in a dog's limb?

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

Which structure connects the humerus and the scapula at the shoulder joint?

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

What is the specific action of the pronator teres muscle in a dog's limb?

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

What is the primary action of the Teres Major muscle in the front limb of a dog?

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

Which bony prominence on the humerus serves as the insertion point for the Supraspinatus muscle in a dog's limb?

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

Which joint in the dog's thoracic limb is also known as the scapulohumeral joint?

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

Which joint is formed between the distal radius/ulna and the carpal bones in a dog's limb?

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

Which muscle originates from the medial epicondyle of the humerus and inserts on the cranial radius in a dog's limb?

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

What type of joint is the shoulder (glenohumeral) joint?

<p>Ball and socket joint (C)</p> Signup and view all the answers

Which structure is responsible for supinating the antebrachium (turning the forearm inward) in the dog's limb?

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

What is the primary action of the biceps brachii muscle in the dog's limb?

<p>Flexion of the elbow (C)</p> Signup and view all the answers

Which ligament on the lateral side of the elbow joint helps stabilize the joint?

<p>Lateral collateral ligament (D)</p> Signup and view all the answers

Which joint is formed between the distal radius/ulna and the carpal bones in the dog's limb?

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

What is the primary action of the pronator teres muscle in the dog's limb?

<p>Pronation of the antebrachium (C)</p> Signup and view all the answers

Which muscle is primarily responsible for extension of the elbow joint in the dog's limb?

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

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