TMJ is lined by:
**Core Concept**
The temporomandibular joint (TMJ) is a complex joint that connects the mandible to the skull, playing a crucial role in jaw movement. The **synovial joint** is lined by a specific type of tissue that reduces friction and facilitates smooth movement. The lining of the TMJ is essential for its proper functioning.
**Why the Correct Answer is Right**
The correct answer is related to the type of tissue that lines the TMJ, which is a **synovial membrane**. This membrane produces **synovial fluid**, which reduces friction between the articulating bones and facilitates smooth movement. The synovial membrane is composed of two layers: the intima and the subintima.
**Why Each Wrong Option is Incorrect**
**Option A:** Is incorrect because it does not accurately describe the lining of the TMJ.
**Option B:** Is incorrect because it is not related to the TMJ lining.
**Option C:** Is incorrect because it is not a characteristic of the TMJ.
**Why Each Wrong Option is Incorrect** (continued)
**Option D:** Is incorrect because the TMJ is not lined by this type of tissue.
**Clinical Pearl / High-Yield Fact**
The TMJ is a **synovial joint** that requires a specific type of lining to function properly. The **synovial membrane** plays a crucial role in reducing friction and facilitating smooth movement.
**Correct Answer:** D. Synovial membrane.