Nervous / VISUAL EXPLAINER
What Happens When You Hit Your Funny Bone?
The ulnar nerve passes close to the surface behind the inner elbow. A bump can irritate it and cause a shock-like feeling toward the little finger and part of the ring finger.
READ THE IMAGE
What the illustration shows
Educational poster titled “What happens when you hit your funny bone?” A cutaway of a bent elbow highlights the ulnar nerve in yellow as it curves behind the medial epicondyle toward the forearm. Labels identify the humerus, medial epicondyle, olecranon, ulna and nerve. A close-up shows skin over the nerve and the cubital tunnel roof. A palmar hand inset shades the little finger and the adjacent side of the ring finger blue, with the thumb unshaded. The takeaway says a shock-like feeling can reach the little finger and part of the ring finger. The artwork is labeled as typical anatomy and simplified sensory territory. AllHumanBody.com appears at the bottom.
How to interpret this poster
- The highlighted hand area is a simplified sensory territory, not a diagnostic map.
- This explains an anatomical relationship and does not predict symptom duration or imply that persistent symptoms are harmless.
- AI-assisted educational illustration; not physician certification, microscopy, a diagnosis or individualized medical advice.
- Fine annotations need enlargement; the full description provides an accessible text alternative.
AI-assisted educational illustration, adapted into web-sized images without changing its composition. This is general education, not an individual diagnosis or treatment recommendation.
EVIDENCE / CONTEXT
Sources and what they support
- Ulnar Nerve Entrapment at the Elbow ↗
Superficial ulnar-nerve course, medial epicondyle and little/ring-finger sensory distribution.
- What Is the Funny Bone? ↗
Why a direct bump near the elbow can irritate the ulnar nerve.