The upper part of the trapezius muscle is the primary target of the shoulder shrug. The trapezius is a triangular muscle that makes up the upper back, running from the back of the neck and down along the spine, lying over the shoulder blades.
In general terms, sex refers to the biological differences between males and females, such as the genitalia and genetic differences. Gender is more difficult to define but can refer to the role of a male or female in society (gender role), or an individual's concept of themselves (gender identity).
love vs sex there is much difference between love and sex it is interesting to see that both love and sex fall under the category of top 1000 frequently used words in the oxford dictionary that shows how much important these two words love and sex are love is mainly used as a noun and a verb