Skin receptors are some of the most important parts of our skin even though many people who are not biology specialists may not have ever heard of them. They play the important role of sending information from the outside world to the nerves. The six different senses that skin receptors are concerned with are pressure, heat, cold, pain vibrations and touch. There are four different types of receptors which are ruffini corpuscles, pacinian corpuscle, meissner corpuscle, and free nerve endings.
Ruffini corpuscle is named after an Italian histologist and embryologist who discovered them in 1898. They are thought to be receptors in the skin sensitive to pressure on the skin. For them to be recognized, Angelo Ruffini corresponded about his work with an English physicist by the name Sir Charles Sherrington. Their friendship blossomed or developed after Ruffini had earlier on shared his work concerning muscle nerve endings with Sherrington. It was Sherrington who made sure that Rufinni’s work was published in the journal of physiology. Ruffini receptors respond to sustained pressure and have low adaptability. They are spindle shaped and play a crucial role in the kinesthetic movement of our fingers. Its because of them that we are able to have a firm grip on an object. They are also sensitive to skin stretch. Some believe them to be heat receptors which respond easily to temperature changes between 25 degrees and 45 degrees. They are found in the deep layers of our skin between the dermis of both hairy and glabrous skin.
The pacinian corpuscle were discovered by another Italian anatomist named Fillipo Pacini whom they were named after. It is very unfortunate that this man did not get to see himself been rewarded for his hard work for at the time of his discovery, many other Italian anatomists did not believe in his work. He was honored posthumously and to these day is respected the world over for what he did. Pacinian corpuscle are found all over our bodies and are the most sensitive types of skin receptors. Some of the places they are found on our bodies are on our sexual organs which are the penis and clitoris and also on our tongue and lips. They respond to vibrations and they are shaped more like onions. Pacinian corpuscle are found in the deep layers of the dermis in both hairy and glabrous skin. Meissner corpuscles are found in the dermis of glabrous skin. They are the ones responsible for you feeling sensitivity when you are putting on your clothes. Because they are highly adaptable, the feeling of the clothes you’ve put on ceases quickly thanks to this corpuscles. The free nerve endings are found throughout our skin and respond to different types of stimulations like thermal, mechanical or noxious. If you have any more information concerning skin receptors, then kindly contribute to this topic in the comments section below.