The throat (pharynx) is a muscular tube that runs from the back of your nose down into your neck. It contains three sections: the nasopharynx, oropharynx and laryngopharynx , which is also called the hypopharynx.
What is the correct order from superior to inferior of the 3 subdivisions of the pharynx?
It is extremely important to our health to ensure proper transport and digestion of food and to ensure a clear path for the movement of air in and out of the body. The three parts of the pharynx in order from most superior to inferior are the nasopharynx, oropharynx, and laryngopharynx.
Which of the following lists the three regions of the pharynx in order from most inferior to most superior?
Regionally, the pharynx divides into three parts which are from superior to inferior:- the nasal pharynx, located behind the posterior nasal apertures (choanae), the oral pharynx, located behind the opening of the oral cavity, and the laryngeal pharynx, located behind the inlet (opening) of the larynx.
What are the three regions of the pharynx and their functions?
The pharynx has three major regions. The first region is the nasopharynx , which is connected to the posterior nasal cavity and functions as an airway. The second region is the oropharynx, which is continuous with the nasopharynx and is connected to the oral cavity at the fauces.
What is the main function of pharynx?
The pharynx, commonly called the throat, is a passageway that extends from the base of the skull to the level of the sixth cervical vertebra. It serves both the respiratory and digestive systems by receiving air from the nasal cavity and air, food, and water from the oral cavity.
What is the lower part of your throat called?
It consists of an upper part (nasopharynx), a middle part (oropharynx), and a lower part ( hypopharynx ). The throat is a muscular passageway through which food is carried to the esophagus and air is carried to the lungs.
What is the purpose of the tiny hairs called cilia in your nose?
Small hairs in your nose act as an air-cleaning system and help filter out large particles; Mucus produced in the trachea and bronchial tubes to keep air passages moist and aid in intercepting dust, bacteria and other substances; The sweeping motion of cilia (small hairs in the trachea) to keep air passages clean .
What are the types of pharynx?
The human pharynx is conventionally divided into three sections: the nasopharynx (epipharynx), the oropharynx (mesopharynx) , and the laryngopharynx (hypopharynx).
What covers the pharynx?
The structure of the pharyngeal wall
The mucous membrane does not possess a muscular layer. While the epithelium of the nasal part of the pharynx is columnar and ciliated and is interspersed with goblet cells, the other parts of the pharynx are covered with non-keratinized stratified squamous epithelium .
What is the structure and function of the pharynx?
Pharynx, (Greek: “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 . Thick fibres of muscle and connective tissue attach the pharynx to the base of the skull and surrounding structures.
What is the function of glottis?
Glottis opens into the windpipe and is responsible for the production of sound . While the epiglottis is a cartilaginous flap on top of the glottis that prevents the food from entering into the larynx. The main difference between glottis and epiglottis is their function and the structure.
Where does the pharynx begin and end?
The pharynx is a muscular tube that connects the oral and nasal cavity to the larynx and oesophagus. It begins at the base of the skull, and ends at the inferior border of the cricoid cartilage (C6) .
What is the role of pharynx in digestive system?
The pharynx, or throat, is the passageway leading from the mouth and nose to the esophagus and larynx. The pharynx permits the passage of swallowed solids and liquids into the esophagus, or gullet , and conducts air to and from the trachea, or windpipe, during respiration.
How does the pharynx help in speech?
It plays an important role in phonation (speech). It provides an enclosed space that allows the speech muscles to initiate sound and pronounce syllables better. The lining of the pharynx secretes mucus to lubricate the pharynx and helps in smooth propulsion of food down to the esophagus and reduce throat irritation.
What is the purpose of the pharynx in the digestive system?
Also called the throat, the pharynx is the portion of the digestive tract that receives the food from your mouth . Branching off the pharynx is the esophagus, which carries food to the stomach, and the trachea or windpipe, which carries air to the lungs.
What is the thing in your neck called?
The neck is the start of the spinal column and spinal cord. The spinal column contains about two dozen inter-connected, oddly shaped, bony segments, called vertebrae. The neck contains seven of these, known as the cervical vertebrae . They are the smallest and uppermost vertebrae in the body.
