Muscles Of Floor Of Mouth Ct Anatomy

The palate also known as the roof of the mouth forms a division between the nasal and oral cavities it is separated into two distinct parts.

Muscles of floor of mouth ct anatomy.

Muscular diaphragm comprised of the bilateral mylohyoid muscles. It can be elevated to close the pharyngeal isthmus during swallowing this prevents the food bolus from entering the. The two mylohyoid muscles arise from the. Normal ct anatomy of the tongue floor of mouth and oropharynx clinical radiology vol.

Its medial fibers form the angular head which arises by a pointed extremity from the upper part of the frontal process of the maxilla and passing obliquely downward and lateralward divides into two slips. A defect in the mylohyoid muscle sometimes referred to as a boutonniere is a common normal anatomic variant in the floor of the mouth that is seen in as many as 77 of ct examinations. 3 a comparative study of magnetic resonance imaging versus computed tomography for the evaluation of maxillary and mandibular tumors. Mancuso and robert hermans imaging approach techniques and relevant aspects general examination patients should be positioned with the neck extended so that the mandibular body is perpendicular to the tabletop for either computed tomography ct or magnetic resonance mr study.

Often in such cases the sublingual salivary gland herniates through the defect into the adjacent submandibular space sometimes producing a clinically. The muscles of the mouth human anatomy. The floor of mouth is a u shaped space which extends and includes from the oral cavity mucosa superiorly and the mylohyoid muscle sling 2 3. Geniohyoid muscles pull the larynx forward during swallowing.

1 department of diagnostic radiology royal marsden hospital london. Hard palate comprised of bone. The floor of mouth is an oral cavity subsite and is a common location of oral cavity squamous cell carcinoma. The floor the floor of the oral cavity consists of several structures.

Stutley j 1 cooke j parsons c. The anatomy which forms the basis for understanding pathological change is given in detail and illustrated by axial and coronal images and line drawings. Oral cavity and floor of the mouth. A computed tomography ct technique is described which demonstrates the structures and tissue planes in the floor of mouth tongue and oropharynx.

Normal ct anatomy of the tongue floor of mouth and oropharynx. When using multidetector computed tomography. The mylohyoid muscle is flat and triangular and is situated immediately superior to the anterior belly of the digastric muscle it is a pharyngeal muscle derived from the first pharyngeal arch and classified as one of the suprahyoid muscles together the paired mylohyoid muscles form a muscular floor for the oral cavity of the mouth. The quadratus labii superioris is a broad sheet the origin of which extends from the side of the nose to the zygomatic bone.