Fetal anatomical variability of the superficial muscles of anterior cervical region

Abstract

The article provides data on the fetal anatomical variability of the superficial muscles of the anterior cervical region, which were revealed during the dissection of 75 human fetuses aged 4–10 months. Conclusions. In human fetuses, additional muscles and anatomical variability of some superficial muscles of the neck (hyothyroidglandular, thyrothyroidglandular, sternocleidomastoid, sternohyoid, thyrohyoid) are found. The loose form of the intramuscular branching of the nerves of the ansa cervicalis in the infrahyoid muscles of the neck was established, with the exception of the lower belly of the omohyoid muscle, where the main form was found. The distribution of nerves in the thickness of the infrahyoid muscles is uneven: the smallest number of nerve branches is found within the middle third of the sternohyoid muscle and the upper third of the sternohyoid muscle. Arteries in the thickness of the infrahyoid muscles mainly branch in the main form.