Floor Of The Pharynx

The muscles of these walls are inserted latero ventrally into the hyoid bone and the cartilages of the larynx.

Floor of the pharynx. The upper floor the nasopharynx is primarily a passageway for air and secretions from the nose to the oral pharynx. The tube begins at the base of the skull and ends inferior to the cricoid cartilage c6. It is comprised of three parts. Floor of the pharynx development of the tongue.

To act as a guard against fungal and viral organism. The floor is provided by the soft palate. For the anatomical description the pharynx can be divided into three floors. It is also connected to the tympanic cavity of the middle ear through the auditory tubes that open on both lateral walls.

The pharynx is divided into oropharynx and nasopharynx. Floor of oral pharynx under the mucus membrane covering the root of the tongue. But there are secondary functions. Thick fibres of muscle and connective tissue attach the pharynx to the base of the skull and surrounding structures.

Glossopharyngeal vagus and sympathetic nerves. 7th 9th 10th cranial nerves. How is the pharyngeal plexuses formed. Having selected the food then the mouth ingests the food takes the food in masticates the food chews it and swallows the food so that it goes down to the rest of the digestive tract.

Size of opening is controlled circumoral muscles such as orbicularis oris buccinator depressors and. The pharynx is a wide short tube with muscular dorsal and lateral walls. Oral cavity pharynx radio anatomy 1. The pharynx is a muscular tube that connects the nasal cavities to the larynx and oesophagus.

Within the pharynx the middle pharyngeal constrictor sits between the superior and inferior pharyngeal constrictor muscles. Development of thyroid gland. It acts as the first line of defense. 1 oral vestibule 2 oral cavity proper oral vestibule slit space between teeth buccal gingiva and lips cheek.

Both circular and longitudinal muscles occur in the walls of the pharynx. It is important for taste sensation so it is innervated by 3 nerves. Vestibule communicates with exterior through mouth. The bottom of your mouth located under your tongue is called the floor.

The nasopharynx the oropharynx and the laryngopharynx. Anatomy of oral cavity and pharynx dr mohit goel jr1 22 aug. The primary function of the oral cavity is firstly the selection of food via taste yes but also of course via smell and sight. The middle pharyngeal constrictor is located on the lateral and posterior sides of the neck it is found anterior to the prevertebral muscles such as longus coli and longus capitis and posterior to the muscles of the mouth floor most notably the hyoglossus muscle.

Tongue largest single muscular organ in oral cavity. Floor of the pharynx 1. The nasopharynx oropharynx and laryngopharynx from superior to inferior. Throat cone shaped passageway leading from the oral and nasal cavities in the head to the esophagus and larynx the pharynx chamber serves both respiratory and digestive functions.

The pharynx or throat is a tube about five inches long composed of three parts. Floor of the pharynx 2. It is common to both the alimentary and the respiratory tract. The act of swallowing opens briefly the normally collapsed.

Why are the tonsil arranged in a ring form.