Which large muscle covers the top and sides of the skull extending from the occipital bone to the eyebrows?

The large muscle that covers the top and sides of the skull, extending from the occipital bone to the eyebrows, is indeed the occipitofrontalis. This muscle is composed of two parts: the frontal belly, which is responsible for raising the eyebrows and wrinkling the forehead, and the occipital belly, which helps to pull the scalp backward. The arrangement of the occipitofrontalis contributes to various facial expressions, particularly those related to surprise and alertness, making it quite significant in both anatomy and function.

The other muscles mentioned do not fulfill this specific role. The temporalis is primarily involved in jaw movement and is located on the sides of the head, but it does not cover the top of the skull. The sternocleidomastoid is a neck muscle that aids in head rotation and flexion, while the deltoid is a major muscle of the shoulder that facilitates arm movements. Each of these muscles serves distinct functions unrelated to the coverage of the skull as described.