What is the most posterior part of the pharynx?

Asked By: Hajer Kronkolsk | Last Updated: 22nd February, 2020
Category: medical health ear nose and throat conditions
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The oropharynx is the portion of the pharynx that is posterior to the oral cavity. The most inferior portion of the pharynx is the laryngopharynx that extends from the hyoid bone down to the lower margin of the larynx.

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Similarly, what is the posterior pharynx?

The pharynx is the part of the digestive system situated posterior to the nasal and oral cavities and posterior to the larynx. The pharynx extends from the base of the skull down to the inferior border of the cricoid cartilage (around the C6 vertebral level), where it becomes continuous with the esophagus.

Subsequently, question is, what is the area of the pharynx behind the nose called? The nasopharynx is, by definition, the upper part of the throat behind the nose. It is a part of the pharynx, which comprises three separate segments: the nasopharynx, oropharynx, and the hypopharynx.

Also, what are the 3 parts of the pharynx?

The human pharynx is conventionally divided into three sections: the nasopharynx, oropharynx, and laryngopharynx. It is also important in vocalization. In humans, two sets of pharyngeal muscles form the pharynx and determine the shape of its lumen.

What makes up the pharynx?

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). The pharynx is comprised of three parts (superior to inferior): Nasopharynx.

39 Related Question Answers Found

Where is the posterior oropharynx?

The oropharynx is the portion of the pharynx that is posterior to the oral cavity. The most inferior portion of the pharynx is the laryngopharynx that extends from the hyoid bone down to the lower margin of the larynx. The upper part of the pharynx (throat) lets only air pass through.

Is the larynx is posterior to the esophagus?

The larynx is posterior to the esophagus. The larynx is anterior to the esophagus.

Is the pharynx an organ?

Organs of the Respiratory System
These organs are shown in Figure below. In addition to the lungs, these organs include the pharynx, larynx, trachea and bronchi. The nasal cavity is also part of the respiratory system. The pharynx is a long tube that is shared with the digestive system.

What is the function of epiglottis?

The epiglottis is a leaf-shaped flap of cartilage located behind the tongue, at the top of the larynx, or voice box. The main function of the epiglottis is to seal off the windpipe during eating, so that food is not accidentally inhaled.

How does the pharynx work?

The pharynx is the body cavity that connects the nasal and oral cavities with the larynx and esophagus. It is commonly referred to as the throat. For the digestive system, its muscular walls function in the process of swallowing, and it serves as a pathway for the movement of food from the mouth to the esophagus.

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 role of the pharynx in the respiratory system?

Pharynx Function
The pharynx's respiratory role is mainly to allow inhaled air entering the nasal cavity to make its way to the respiratory tract – which includes the larynx, the trachea or “windpipe” and finally the lungs' bronchioles and alveoli where respiration takes place.

What are the parts of the larynx?

Parts of the larynx
  • supraglottis - the area above the vocal cords that contains the epiglottis cartilage.
  • glottis - the area of the vocal cords.
  • subglottis - the part below the vocal cords, containing the cricoid cartilage that continues down into the windpipe.

What is the Laryngopharynx?

The laryngopharynx is where both food and air pass. It can be found between the hyoid bone and the larynx and esophagus, which helps guide food and air where to go. It is a part of the pharynx.

Can you see your pharynx?

Parts of the pharynx (throat)
You can't see your own nasopharynx directly. It lies above the soft area at the back of the roof of your mouth (your soft palate) and the dangly bit (uvula) at the back of your mouth. You can see these if you look inside your mouth using a mirror.

Does food pass through the pharynx?

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 medical term for the voice box?

Medical Definition of Voice box
Voice box: The voice box, or larynx, is the portion of the respiratory (breathing) tract containing the vocal cords which produce sound. It is located between the pharynx and the trachea. The larynx, also called the voice box, is a 2-inch-long, tube-shaped organ in the neck.

What moves the epiglottis?

When you swallow, a flap called the epiglottis moves to block the entrance of food particles into your larynx and lungs. The muscles of the larynx pull upward to assist with this movement. They also tightly close during swallowing. That prevents food from entering your lungs.

What is the function of the bronchi?

The bronchi, singularly known as a bronchus, are extensions of the windpipe that shuttle air to and from the lungs. Think of them as highways for gas exchange, with oxygen going to the lungs and carbon dioxide leaving the lungs through them. They are part of the conducting zone of the respiratory system.

Is epiglottis part of larynx?

The epiglottis sits at the entrance of the larynx. It is shaped like a leaf of purslane and has a free upper part that rests behind the tongue, and a lower stalk (Latin: petiolus). The stalk originates from the back surface of the thyroid cartilage, connected by a thyroepiglottic ligament.

What is difference between larynx and pharynx?

The main difference between pharynx and larynx is that pharynx is a part of an alimentary canal, which extends from the nasal cavity and mouth to the larynx and the esophagus whereas larynx is the upper portion of the trachea. Both air and food pass through the pharynx. The wall of the larynx is made up of cartilage.

Where is the esophagus located?

The esophagus is a muscular tube connecting the throat (pharynx) with the stomach. The esophagus is about 8 inches long, and is lined by moist pink tissue called mucosa. The esophagus runs behind the windpipe (trachea) and heart, and in front of the spine.