University Of Jordan Faculty Of Medicine Ulna and Radius Anatomy Quiz

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What is the name of the process on the upper end of the ulna that serves as the attachment point for the triceps brachii muscle?

Radial notch

Coronoid process

Olecranon process (correct)

Ulnar tuberosity

Which of the following is NOT one of the three surfaces of the ulnar shaft?

Medial surface

Posterior surface

Lateral surface (correct)

Anterior surface

What is the name of the projection on the lower end of the radius that forms the bony prominence on the lateral side of the wrist?

Styloid process (correct)

Dorsal tubercle

Radial tuberosity

Head

Which of the following is NOT a feature of the upper end of the radius?

Trochlear notch Signup and view all the answers

What is the function of the supinator crest and supinator fossa on the ulna?

They provide attachment points for the supinator muscle. Signup and view all the answers

Which of the following is NOT a feature of the lower end of the radius?

Medial surface Signup and view all the answers

What type of joint is formed between the head of the radius, radial notch of the ulna, and annular ligament?

Pivot synovial joint Signup and view all the answers

Which carpal bone is located in the distal row and is medial to the capitate bone?

Hamate Signup and view all the answers

What structure is found on the lateral aspect of the radius?

Styloid process Signup and view all the answers

Which bone articulates with the radial notch of the ulna and the head of the radius?

Lunate Signup and view all the answers

What is the function of the annular ligament in relation to the proximal radioulnar joint?

Enable pronation and supination movements Signup and view all the answers

Which bone is part of both the wrist joint and the distal radioulnar joint?

Lunate Signup and view all the answers

Which joint articulates between the carpal and metacarpal bones of the medial four fingers?

Carpometacarpal joint (Medial four fingers) Signup and view all the answers

What type of joint is the carpometacarpal joint of the thumb?

Saddle-shaped synovial joint Signup and view all the answers

Which of the following joints is classified as a hinge synovial joint?

Proximal interphalangeal joint Signup and view all the answers

How many phalanges does the thumb have?

2 Signup and view all the answers

Which joint articulates between the carpal bones?

Intercarpal joint Signup and view all the answers

What type of movement is allowed at the metacarpophalangeal joint?

Flexion, extension, abduction, and adduction Signup and view all the answers