Musculoskeletal / VISUAL EXPLAINER
What Forms the Soft Rim of Your Hip Socket?
The acetabular labrum is a fibrocartilage lip at the hip-socket rim. It deepens the socket and helps maintain a fluid seal around the femoral head, unlike the articular cartilage coating the joint surfaces.

READ THE IMAGE
What the illustration shows
English anatomy poster titled “What Forms the Soft Rim of Your Hip Socket?” on a deep navy background. A large superior hip section shows ivory spongy acetabular bone above a rounded femoral head. Pale blue articular cartilage covers opposing joint surfaces; a salmon triangular acetabular labrum extends from the outer socket rim. Four leader labels identify socket, labrum, cartilage and femoral head. A small pelvis locator circles the hip. A lower enlarged rim detail labels the fibrocartilage lip and a thin fluid film. Text says the rim deepens the socket, helps maintain a fluid seal, and differs from cartilage covering joint surfaces. The section is simplified and not to scale; the seal is not a rigid lock. Gold AllHumanBody.com branding and the full slogan appear below.
How to interpret this poster
- Superior rim section only; inferior notch and transverse ligament are outside the view. Joint space and tissue thickness are exaggerated; fluid seal is not a rigid lock or treatment claim.
- 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.
- Display the full uncropped illustration; do not trim titles, legends or boundary annotations.
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
- Yale Medicine orthopedic patient education ↗
Labral tissue, rim position, fluid seal, and distinction from surface cartilage.
- OpenStax anatomical textbook ↗
Fibrocartilage lip at acetabular margin deepens the hip socket.