San Diego has on average 146 sunny days and 117 partly cloudy days a year. The average annual precipitation is less than 12 inches (300 mm), resulting in a borderline arid climate.
Skeletal muscle makes up the bulk of muscles in the body. See also skeletal muscle groups. A whole skeletal muscle is considered an organ of the muscular system. Each organ or muscle consists of skeletal muscle tissue, connective tissue, nerve tissue, and blood or vascular tissue. Skeletal muscles vary considerably in size, shape, and arrangement of fibers.
An organ is a formation of the body that carries out a definite function. Organs could consist of the heart, the lungs, the eye and the ear. Depending on what way you want to view it, we can talk about the smallest internal organ or the smallest external organ. However, here we will focus on the smallest internal organ.