Intermediate Pronator Teres Quiz

Q1. Which structure passes between the humeral and ulnar heads of pronator teres?

• Ulnar nerve
• Median nerve
• Musculocutaneous nerve
• Radial nerve

Q2. Which head of pronator teres is generally larger?

• Humeral head
• Both are always identical in size
• Ulnar head
• Radial head

Q3. Which head of pronator teres arises through the common flexor origin?

• Ulnar head
• Deep head
• Radial head
• Humeral head

Q4. Which boundary of the cubital fossa is formed by pronator teres?

• Roof only
• Lateral boundary
• Superior boundary
• Medial boundary

Q5. Where on the radius does pronator teres insert?

• Radial tuberosity
• Radial styloid
• Middle of the lateral surface
• Head of the radius

Q6. Which spinal nerve roots commonly contribute to the motor supply of pronator teres?

• C3 and C4
• T1 and T2 only
• C8 and T1 only
• C6 and C7

Q7. During pronation, what movement of the radius is produced by pronator teres?

• The radius is pulled directly away from the ulna
• The radius moves without rotation
• The ulna rotates laterally around the radius
• The radius rotates medially and crosses the ulna

Q8. When is pronator teres particularly recruited compared with pronator quadratus?

• Only during wrist extension
• Only during forearm supination
• During rapid or resisted pronation
• Only when the fingers are abducted

Q9. How can pronator teres be tested clinically?

• Ask the patient to abduct the fingers against resistance
• Ask the patient to pronate the forearm against resistance
• Ask the patient to supinate the forearm against resistance
• Ask the patient to extend the wrist against resistance

Q10. Why can pronator teres contribute to elbow flexion?

• It crosses posterior to the elbow joint
• It inserts on the distal humerus
• It inserts on the olecranon
• It crosses anterior to the elbow joint