What lies in the tonsillar fossa?
The tonsillar fossa (or tonsillar sinus) is a space delineated by the triangular fold (plica triangularis) of the palatoglossal and palatopharyngeal arches within the lateral wall of the oral cavity….
| Tonsillar fossa | |
|---|---|
| FMA | 55041 |
| Anatomical terminology |
Are tonsils in the pharynx or larynx?
The tonsils (palatine tonsils) are a pair of soft tissue masses located at the rear of the throat (pharynx). Each tonsil is composed of tissue similar to lymph nodes, covered by pink mucosa (like on the adjacent mouth lining). Running through the mucosa of each tonsil are pits, called crypts.
Where is the pharynx larynx?
The throat (pharynx and larynx) is a ring-like muscular tube that acts as the passageway for air, food and liquid. It is located behind the nose and mouth and connects the mouth (oral cavity) and nose to the breathing passages (trachea [windpipe] and lungs) and the esophagus (eating tube).
Which muscle forms the floor of tonsillar fossa?
palatoglossus muscle
The palatoglossus muscle runs in the anterior faucial arch, or palatoglossal arch, and the palatopharyngeus muscle runs in the posterial faucial arch, or palatopharyngeal arch of the tonsillar fossa. These muscles pull the back of the tongue upward toward the soft palate to close off the oral cavity from the pharynx.
What is lingual tonsil?
The lingual tonsils are a collection of lymphatic tissue located in the lamina propria of the root of the tongue. This lymphatic tissue consists of the lymphatic nodules rich in cells of the immune system (immunocytes).
What is the area behind the uvula called?
The nasopharynx is the portion of the pharynx that is posterior to the nasal cavity and extends inferiorly to the uvula. The oropharynx is the portion of the pharynx that is posterior to the oral cavity.
What are the 3 parts of the pharynx quizlet?
What three regions is the Pharynx or throat divided into? Nasopharynx, Oropharynx, Laryngopharynx.
What tonsils are in the pharynx?
The palatine tonsils are the ones that are located near the opening of the oral cavity into the pharynx. Lingual tonsils are located on the posterior surface of the tongue, which also places them near the opening of the oral cavity into the pharynx.
What comes first pharynx or larynx?
The larynx is located immediately below the pharynx and is formed of pieces of cartilage bound together by ligaments.