Which set of bones is known as the 'sit bones'?

The 'sit bones' refer to the ischium, which is one of the three bones that make up each half of the pelvis. When a person sits, the weight is mainly supported by the ischial tuberosities, the bony protrusions on the ischium. This particular bone structure provides stability and comfort for seated postures, making it essential knowledge for yoga practitioners and teachers. Understanding the role of the ischium helps in instructing students about proper posture and alignment during seated poses.

The other bones mentioned serve different purposes: the fibula is a bone of the leg that helps provide balance and support, the patella is the kneecap that protects the knee joint, and the coccyx, or tailbone, is located at the base of the spine but does not carry the same weight-bearing significance as the ischium when seated. Recognizing these distinctions aids in understanding the anatomy and biomechanics relevant to yoga practice.