Pharynx Labeling Diagram Quiz

Pharynx and Related Structures

• Paranasal Sinuses: Air-filled spaces located within the bones surrounding the nasal cavity, involved in reducing skull weight and producing mucus.

• Nasal Cavity: The space behind the nose, lined with mucous membranes, plays a vital role in respiration and filtration of air.

• Nasopharynx: The upper part of the pharynx, connecting the nasal cavity to the oropharynx, serves as a pathway for air movement and contains the pharyngeal tonsil.

• Oropharynx: The middle section of the pharynx located behind the mouth, important for both respiratory and digestive functions, includes the palatine tonsils.

• Laryngopharynx: The lower segment of the pharynx leading to the larynx and esophagus, involved in directing food and air to their respective pathways.

• Pharyngeal Tonsil: Also known as adenoids, these lymphatic tissue located in the nasopharynx helps in immune defense against pathogens.

• Eustachian Tube: Connects the middle ear to the nasopharynx, equalizing pressure in the ear and allowing drainage.

• Palatine Tonsil: Lymphatic tissue located on either side of the oropharynx, plays a role in immune response.

• Epiglottis: A flap of cartilage located at the upper laryngopharynx that prevents food from entering the trachea during swallowing.

• Vocal Cords: Located in the lower laryngopharynx, they are essential for sound production and protecting the airway during swallowing.

• Esophagus: A muscular tube located below the laryngopharynx, transporting food from the mouth to the stomach.

• Trachea: Located below the esophagus, this tube conducts air to and from the lungs, lined with cartilage to maintain its structure.