Podcast
Questions and Answers
The carpal tunnel is formed by the extensor retinaculum.
The carpal tunnel is formed by the extensor retinaculum.
False
The largest carpal bone is the hamate.
The largest carpal bone is the hamate.
False
The scaphoid is the first carpal bone to ossify at 3 years of age.
The scaphoid is the first carpal bone to ossify at 3 years of age.
False
The primary blood supply to the scaphoid is through the palmar branch of the radial artery.
The primary blood supply to the scaphoid is through the palmar branch of the radial artery.
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Inflammation of the synovial sheath is not painful because the synovial space remains empty.
Inflammation of the synovial sheath is not painful because the synovial space remains empty.
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The carpal tunnel is formed by the extensor retinaculum.
The carpal tunnel is formed by the extensor retinaculum.
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Carpal tunnel syndrome can lead to paraesthesia, numbness, and motor weakness of thumb muscles due to compression of the ulnar nerve.
Carpal tunnel syndrome can lead to paraesthesia, numbness, and motor weakness of thumb muscles due to compression of the ulnar nerve.
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The flexor retinaculum prevents 'bow stringing' of tendons during wrist flexion.
The flexor retinaculum prevents 'bow stringing' of tendons during wrist flexion.
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The articular capsule of the wrist joint is thick and tight.
The articular capsule of the wrist joint is thick and tight.
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The ligament that runs from the styloid process of ulna to triquetral is called the radial collateral ligament.
The ligament that runs from the styloid process of ulna to triquetral is called the radial collateral ligament.
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Pulled elbow, also known as subluxation, is a common injury in preschool children aged 1-3 years.
Pulled elbow, also known as subluxation, is a common injury in preschool children aged 1-3 years.
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The carpometacarpal joint of the thumb is classified as a hinge type of synovial joint.
The carpometacarpal joint of the thumb is classified as a hinge type of synovial joint.
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Study Notes
Carpal Tunnel Anatomy
- The carpal tunnel is formed by the extensor retinaculum.
- The largest carpal bone is the hamate.
- The scaphoid is the first carpal bone to ossify at 3 years of age.
- The primary blood supply to the scaphoid is through the palmar branch of the radial artery.
Wrist Joint Functionality
- The flexor retinaculum prevents 'bow stringing' of tendons during wrist flexion.
- The articular capsule of the wrist joint is thick and tight.
Injuries and Conditions
- Carpal tunnel syndrome can lead to paraesthesia, numbness, and motor weakness of thumb muscles due to compression of the ulnar nerve.
- Pulled elbow, also known as subluxation, is a common injury in preschool children aged 1-3 years.
Joint Classification
- The carpometacarpal joint of the thumb is classified as a hinge type of synovial joint.
Miscellaneous
- Inflammation of the synovial sheath is not painful because the synovial space remains empty.
- The ligament that runs from the styloid process of ulna to triquetral is called the radial collateral ligament.
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Description
Test your knowledge on upper limb anatomy, bone structure, and common injuries with this quiz. Questions cover topics such as physeal closure ages, carpal bones arrangement, and characteristic deformities like the 'dinner fork' shape. See how well you understand the shoulder, arm, forearm, and hand regions of the upper limb.
