Intermediate Flexor Carpi Radialis Muscle Quiz

Q1. Flexor carpi radialis shares its proximal attachment with several superficial forearm flexors through which structure?

• Bicipital aponeurosis
• Common extensor tendon
• Interosseous membrane
• Common flexor tendon

Q2. Which spinal nerve roots contribute most commonly to the innervation of flexor carpi radialis?

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

Q3. Which statement best describes the distal attachment of flexor carpi radialis?

• Mainly to the base of the second metacarpal, with a possible slip to the third
• To the pisiform and base of the fifth metacarpal
• To the distal phalanx of the thumb
• To the palmar aponeurosis only

Q4. Does the flexor carpi radialis tendon pass through the carpal tunnel with the median nerve?

• No, it passes superficial to the entire flexor retinaculum like palmaris longus
• No, it passes through a separate canal
• Yes, but only during wrist flexion
• Yes, it passes through the carpal tunnel beside the median nerve

Q5. Which carpal bone is closely related to the distal fibro-osseous course of the flexor carpi radialis tendon?

• Pisiform
• Triquetrum
• Lunate
• Trapezium

Q6. Which muscle can act with flexor carpi radialis to produce radial deviation while their opposing flexion and extension components partially balance?

• Extensor carpi ulnaris
• Pronator quadratus
• Flexor carpi ulnaris
• Extensor carpi radialis longus

Q7. Which muscle lies lateral to flexor carpi radialis in the proximal superficial flexor-pronator arrangement?

• Flexor carpi ulnaris
• Palmaris longus
• Flexor digitorum profundus
• Pronator teres

Q8. Which tendon is a useful palpable landmark on the anterior aspect of the distal forearm during resisted wrist flexion and radial deviation?

• Triceps tendon
• Flexor carpi radialis tendon
• Extensor digiti minimi tendon
• Extensor indicis tendon

Q9. Which artery lies lateral to the flexor carpi radialis tendon near the wrist?

• Posterior interosseous artery
• Radial artery
• Ulnar artery
• Brachial artery

Q10. Which movement combination best isolates flexor carpi radialis during physical examination?

• Thumb opposition with wrist extension
• Wrist extension with ulnar deviation
• Wrist flexion with radial deviation
• Finger extension with forearm supination