Hawaii Massage License Practice Exam

Which nerve is responsible for sensation in the back of the hand and outer fingers?

1. Median nerve

2. Radial nerve

3. Ulnar nerve

4. Femoral nerve

The correct answer is: Ulnar nerve

The correct answer is the radial nerve, which is actually listed as choice B in the provided options. The radial nerve is primarily responsible for the sensation in the back of the hand and the outer fingers, as it innervates these areas. It runs down the arm and provides sensation to the dorsal aspect of the hand, specifically the thumb, index finger, middle finger, and part of the ring finger. The radial nerve plays an important role in both sensory and motor functions, particularly in extending the wrist and fingers and maintaining grip strength. Understanding the distribution of the radial nerve is essential for identifying nerve damage and its effects on sensation in clinical settings. It is important for massage therapists and other healthcare professionals to be knowledgeable about the nervous system and its role in sensation. Additionally, recognizing the symptoms of nerve dysfunction, like tingling or numbness in specific areas, can guide appropriate treatment strategies.