Question

Is lamellar corpuscle just another name for a pacinian corpuscle? Are those two the same things?

Answer 1

Answer:

Pacinian corpuscles are mechanoreceptors located in the dermis of the skin which can detect any sense of pressure and vibration when applied to the skin.

A lamellar structure is the one that has a layer-like arrangement sometimes the so-called 'onion-skin' appearance.

examples of structures that has lamellar structure are the Haversian system of the bone which is arranged in layers and sub-layers. Another example of a lamellar structure is the thylakoids within a plant chloroplast which are extended and connected to each other by a lamella giving a multi-layered appearance.

Pacinian corpuscles are one among the four mechanoreceptors in the body. It has a knob like appearance. They are also called lamellar corpuscles due to their characteristic onion skin multilayered appearance of the connective tissue that surrounds these nerve endings. They have the capacity to act as a transducer which on the application of pressure deforms triggering an opening of sodium channel on the nerve thereby initiating depolarisation and generating an action potential along the nerve.