WebJul 5, 2024 · The adjacent middle nasal meatus is enlarged with varying degrees of lateral retraction of the middle turbinate. The decrease in sinus volume is associated with increased orbital volume and hypoglobus. The retroantral fat is widened. Most cases are idiopathic, without a prior history of trauma or surgery. Characterized by painless … WebThree large shelf-like protrusions, called nasal conchae (also known as turbinates) serve as landmarks for locating drainage of each of the sinuses (more details in the subsequent sections). Inferior to each concha is an air space called meatus. The posterior ethmoid sinus drains into the superior meatus, which is inferior to the superior concha.
Spontaneous Proliferative Lesions in the Nasopharyngeal Meatus …
WebSpontaneous proliferative lesions in the nasopharyngeal meatus were identified as the cause of death in 12 of 1,600 male and 5 of 1,600 ... Mery S, Gross EA, Joyner DR, Godo M, and Morgan KT (1994). Nasal diagrams: A tool for recording the distribution of nasal lesions in rats and mice. Toxicol. Pathol. 11: 353–372. Google Scholar. 21 ... WebThe sphenoid sinus is a paired paranasal sinus occurring within the body of the sphenoid bone.It represents one pair of the four paired paranasal sinuses. The pair of sphenoid sinuses are separated in the middle by a septum of sphenoid sinuses. Each sphenoid sinus communicates with the nasal cavity via the opening of sphenoidal sinus.: 500 The two … rbc investors services
Animals Free Full-Text The Respiratory System of the …
WebApr 1, 2024 · There are two frontal sinuses located within the frontal bone of the skull. They are the most superior of the paranasal sinuses, and are triangular in shape. Drainage is via the frontonasal duct. It opens out at the hiatus semilunaris, within the … WebJan 2, 2024 · Anatomy atlas of the nasal cavity: fully labeled illustrations and diagrams of the nose and paranasal sinuses (external nose, nasal cartilages, nasal septum, nasal … WebCommon nasal meatus - space between the medial aspects of conchae and nasal septum; Nasopharyngeal meatus - space behind the nasal conchae at the superior, middle and inferior nasal meatuses fusion site. If the supreme nasal concha is present, the nasal cavity has one more meatus called the supreme nasal meatus located between the supreme … rbc investor \\u0026 treasury services