Beginner Posterior Compartment of the Forearm Quiz

Q1. What is the predominant function of the posterior compartment of the forearm?

• Adduction of the shoulder
• Flexion of the elbow only
• Flexion of the wrist and digits
• Extension of the wrist and digits

Q2. Which nerve provides the motor supply to the posterior forearm compartment through its branches?

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

Q3. Which muscle is a superficial extensor of the fingers?

• Flexor digitorum profundus
• Pronator quadratus
• Extensor digitorum
• Flexor digitorum superficialis

Q4. Which posterior forearm muscle specifically extends the little finger?

• Flexor carpi ulnaris
• Extensor indicis
• Flexor digiti minimi brevis
• Extensor digiti minimi

Q5. Which posterior forearm muscle extends and adducts the hand at the wrist?

• Palmaris longus
• Flexor carpi radialis
• Extensor carpi radialis longus
• Extensor carpi ulnaris

Q6. Which deep posterior forearm muscle extends the index finger?

• Flexor digitorum profundus
• Extensor digiti minimi
• Extensor indicis
• Pronator teres

Q7. Which muscle in the posterior forearm supinates the forearm?

• Flexor carpi ulnaris
• Supinator
• Pronator teres
• Pronator quadratus

Q8. Which deep posterior forearm muscle abducts the thumb?

• Extensor indicis
• Flexor pollicis longus
• Extensor digiti minimi
• Abductor pollicis longus

Q9. Which deep posterior forearm muscle extends the distal phalanx of the thumb?

• Abductor pollicis longus
• Extensor pollicis brevis
• Extensor pollicis longus
• Flexor pollicis longus

Q10. Which deep fascia surrounds the muscles of the forearm?

• Clavipectoral fascia
• Palmar aponeurosis
• Antebrachial fascia
• Brachial fascia