superior oblique
foreheadThe corrugator is the muscle that contracts the forehead into wrinkles and pulls the eyebrows together.
The occipitofrontalis muscle is responsible for moving the scalp posteriorly by contracting its occipital belly. This muscle helps with facial expressions and raising the eyebrows.
The antagonist muscle to the frontalis is the occipitalis. The frontalis muscle raises the eyebrows and wrinkles the forehead, while the occipitalis muscle pulls the scalp backwards.
The esophagus
The thyrohyoid muscle,as well as the elevator muscles lift the larynx anteriorly and superiorly.
When a muscle contracts, it pulls with a force generated by the muscle fibers contracting and shortening.
it hurts
The zygomaticus is a skeletal muscle, and as such is a 'striated' muscle. It is also a parallel muscle. It functions in chewing, and is therefor one of the 'Masticating' muscles.
frontalis muscle or the frontal belly of epicranius
the function of the frontalis muscle is to raise the eyebrows.
an erection
The muscle responds and pulls on a bone by way of a tendon. It can not react until the nerve tells it to.