Which integumentary structure functions to sense heavy pressure?

The integumentary structure that functions to sense heavy pressure is the Pacinian corpuscle, also known as a lamellar corpuscle. These specialized sensory receptors are located deep within the dermis and subcutaneous tissue, responding to deep pressure and vibration. When pressure is applied, the Pacinian corpuscles become activated, sending signals to the nervous system to inform the brain about the sensory input. Their structure allows them to quickly adapt to changes in pressure, making them effective for detecting heavy touch stimuli.