2023年10月30日 · All three of these cavities open posteriorly into the pharyngeal tube. This article will highlight the anatomical structures, namely the muscles the make up the pharyngeal walls, with regards to their origins, insertions, innervation, …

The laryngopharynx includes three major sites: the pyriform sinus, postcricoid area, and the posterior pharyngeal wall. Like the oropharynx above it, the laryngopharynx serves as a passageway for food and air and is lined with a stratified squamous epithelium.

2023年2月3日 · The pharynx is a muscular tube that connects the nasal cavities to the larynx and oesophagus. It is common to both the alimentary and the respiratory tract. The tube begins at the base of the skull and ends inferior to the cricoid cartilage (C6).

2025年1月24日 · The pharyngeal wall is made up of several layers from internal to external: Mucosa: Lined with ciliated pseudostratified columnar epithelium in the nasopharynx and stratified squamous epithelium in the oropharynx and laryngopharynx. Submucosa: Contains connective tissue, blood vessels, and lymphatics.

The pharyngeal muscles are a group of muscles that form the pharynx, which is posterior to the oral cavity, determining the shape of its lumen, and affecting its sound properties as the primary resonating cavity. The pharyngeal muscles (involuntary skeletal) push food into the esophagus.

2023年10月30日 · The pharynx, more commonly known as the throat, is a 12-14 cm, or 5 inch, long tube extending behind the nasal and oral cavities until the voice box and the esophagus. Essentially, it forms a continuous muscular passage for air, food, and liquids to travel down from your nose and mouth to your lungs and stomach .

The pharyngeal wall comprises five primary layers, listed from innermost to outermost: Mucous Membrane. The mucous membrane lines the pharyngeal cavity and is continuous with the mucous membranes of the eustachian tubes, nasal cavities, mouth, larynx, and oesophagus.

2023年5月1日 · The longitudinal muscles, palatopharyngeus (PP), stylopharyngeus (STP), and salpingopharyngeus (SLP), merge caudally to become the medial aspect of the lateral wall of the pharynx. They function to shorten and elevate the pharynx during deglutition.

2024年5月25日 · The pharynx is part of the digestive system posterior to the oronasal cavity and larynx. This muscular tube is divided into the oropharynx, nasopharynx, and laryngopharynx. Pharyngeal muscles are organized into an outer circular layer and an inner longitudinal sheet surrounding the lumen.

2023年10月30日 · The oropharynx, or the oral part of the pharynx, spreads from the soft palate to the upper margin of the epiglottis and has four walls (anterior, two lateral and posterior). Its anterior wall is defined by the pharyngeal aspect of the tongue.