👉 pinnular is a type of protein that is found in the blood, primarily in the liver. It is also known as albumin and is responsible for carrying oxygen to cells throughout the body. The term "pinnular" comes from the Latin word "pinnus," which means "pearl." This refers to the shape of the protein, which resembles a pearl or a pear. The specific structure and function of pinnular proteins are not fully understood, but they have been implicated