Podcast
Questions and Answers
What is the function of the anular ligament in the proximal radioulnar joint?
What is the function of the anular ligament in the proximal radioulnar joint?
- Facilitates pronation and supination movements
- Stabilizes the elbow joint
- Assists in preventing displacement of the radius on the ulna during pulling
- Prevents proximal displacement of the radius and ulna during pushing movements (correct)
Which bones form the midradioulnar articulation?
Which bones form the midradioulnar articulation?
- Radius, ulna, and interosseous membrane (correct)
- Ulna, annular ligament, and interosseous membrane
- Radius, ulna, and annular ligament
- Ulna, humerus, and radius
What is the primary motion at the proximal radioulnar joint during pronation?
What is the primary motion at the proximal radioulnar joint during pronation?
- Radial head rotates within the annular ligament
- Radius spins on capitulum of humerus
- Ulna slides posteriorly (correct)
- Ulna slides anteriorly
Which joint is described as a uniaxial, hinge joint in the elbow region?
Which joint is described as a uniaxial, hinge joint in the elbow region?
What is the primary function of the ligaments in the elbow joint?
What is the primary function of the ligaments in the elbow joint?
What is the primary purpose of the interosseous membrane in the midradioulnar articulation?
What is the primary purpose of the interosseous membrane in the midradioulnar articulation?
Which of the following is NOT an extrinsic ligament of the wrist?
Which of the following is NOT an extrinsic ligament of the wrist?
The anatomic snuffbox is a surface landmark located between which structures?
The anatomic snuffbox is a surface landmark located between which structures?
In the close-packed position, the interphalangeal (IP) joints are in:
In the close-packed position, the interphalangeal (IP) joints are in:
Which of the following is the correct resting position of the metacarpophalangeal (MCP) joints?
Which of the following is the correct resting position of the metacarpophalangeal (MCP) joints?
Which of the following statements about the annular pulleys is correct?
Which of the following statements about the annular pulleys is correct?
Which of the following bones is NOT a carpal bone?
Which of the following bones is NOT a carpal bone?
What is the term used to describe the anatomical region bounded by the extensor pollicis longus medially and the abductor pollicis longus and extensor pollicis brevis laterally?
What is the term used to describe the anatomical region bounded by the extensor pollicis longus medially and the abductor pollicis longus and extensor pollicis brevis laterally?
Which carpal bone is formed within the tendon of the flexor carpi ulnaris muscle?
Which carpal bone is formed within the tendon of the flexor carpi ulnaris muscle?
Which carpal bone is the most commonly fractured bone in the hand?
Which carpal bone is the most commonly fractured bone in the hand?
What is the term used to describe the angle formed by the long axis of the humerus and the long axis of the ulna?
What is the term used to describe the angle formed by the long axis of the humerus and the long axis of the ulna?
Which carpal bone articulates with the thumb metacarpal and provides attachment for the transverse carpal ligament?
Which carpal bone articulates with the thumb metacarpal and provides attachment for the transverse carpal ligament?
What is the term used to describe the ligament system that connects the carpal bones and provides stability to the wrist joint?
What is the term used to describe the ligament system that connects the carpal bones and provides stability to the wrist joint?
Which carpal bone has a hook-like projection that forms the floor of the tunnel of Guyon?
Which carpal bone has a hook-like projection that forms the floor of the tunnel of Guyon?
Which carpal bone is the second most commonly dislocated carpal bone?
Which carpal bone is the second most commonly dislocated carpal bone?
How many bones are present in the wrist and hand?
How many bones are present in the wrist and hand?
What is the term used to describe the joint between the radius and the carpal bones?
What is the term used to describe the joint between the radius and the carpal bones?
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