The basic topics you would want to learn are: 1  definition of categories, and some examples of categories. 2  functors, and examples of them. 3  natural transformations, and examples of them. 4  definitions of products, coproducts and exponents (function spaces), initial and terminal objects.
Sternocleidomastoid muscle. In human anatomy, the sternocleidomastoid muscle (/ËstÉËrnoÊËklaÉªdÉËmÃ¦sËtÉÉªd, -nÉ-, -doÊ-/[1][2]), also known as sternomastoid and commonly abbreviated as SCM, is a paired muscle in the superficial layers of the side of the neck. It is one of the largest and most superficial cervical muscles.
The congenital muscular torticollis is the most common torticollis which present at birth. The cause of congenital muscular torticollis is unclear. Birth trauma or intrauterine malposition is considered to be the cause of damage to the sternocleidomastoid muscle in the neck.