The first arch is complex, and contributes to both upper jaw and lower lower jaw. The 5th arch is very rudimentary in the human embryo, and difficult to define. The external surface of the embryonic pharyngeal region is covered with ectoderm, and the internal aspect lined with endoderm. ...
nasopharynx- cavity forming the upper part of the pharynx oropharynx- cavity formed by the pharynx at the back of the mouth laryngopharynx- the lower part of the pharynx adenoid,Luschka's tonsil,pharyngeal tonsil,third tonsil,tonsilla adenoidea,tonsilla pharyngealis- a collection of lymphatic tiss...
The nasopharynx, which is the upper part of the pharynx, connects to the back of the nasal cavity, and the laryngopharynx, which is the lower part of the pharynx, connects to the esophagus and larynx (voice box). Overall, in easy language, the pharynx is located in the middle of the ...
The meaning of PHARYNX is the muscular tubular passage of the vertebrate digestive and respiratory tracts extending from the back of the nasal cavity and mouth to the esophagus.
From the front wall, on a level with the floor of the nose and roof of the mouth, a slanting shelf of muscular and glandular tissue, covered with mucous membrane, projects downward and backward into the cavity, and divides it into an upper part or naso-pharynx and a lower or oral phary...
At its upper end, it is continuous with the mouth and nasal passages, and connects with the ears via the Eustachian tubes. The lower end of the pharynx is continuous with the esophagus (see digestive system). It is also connected to the larynx by an opening that is covered by the epiglo...
From the front wall, on a level with the floor of the nose and roof of the mouth, a slanting shelf of muscular and glandular tissue, covered with mucous membrane, projects downward and backward into the cavity, and divides it into an upper part or naso-pharynx and a lower or oral phary...
upper respiratory tract- the nose and throat and trachea nasopharynx- cavity forming the upper part of the pharynx oropharynx- cavity formed by the pharynx at the back of the mouth laryngopharynx- the lower part of the pharynx adenoid,Luschka's tonsil,pharyngeal tonsil,third tonsil,tonsilla adeno...
The constrictor muscles of the pharynx are supplied by the pharyngeal plexus – in the upper pharynx more by the glossopharyngeal nerve (CN IX), and in the lower pharynx more by the vagus nerve (CN X). The superior constrictor muscle of the pharynx (four parts) Origin: • Pterygophary...
Kahrilas PJ, Dodds WJ, Dent J, Logemann JA, Shaker R (1988) Upper esophageal sphincter function during deglutition. Gastroenterology 95:52–62 PubMed CAS Google Scholar Kun WS, Buchholz D, Kuman AJ, Donner MW, Rosenbaum AE (1987) Magnetic resonance imaging for evaluating neurogenic dysphagia...