2019年8月12日 · Interactive diagrams show sinus cavity locations and help visualize sinusitis, the most common type of sinus infection. We also go over sinusitis signs and care.

2024年8月15日 · What are the paranasal sinuses? Your paranasal sinuses are four paired, air-filled spaces (cavities) inside the bones in your face. Most of us know them as just our “sinuses.” Technically speaking, “sinus” is a broad medical term that may refer to different air-filled cavities inside a bone or another type of tissue, like a blood vessel.

A sinus is a sac or cavity in any organ or tissue, or an abnormal cavity or passage. In common usage, "sinus" usually refers to the paranasal sinuses, which are air cavities in the cranial bones, especially those near the nose and connecting to it. Most individuals have four paired cavities located in the cranial bone or skull.

2023年10月30日 · The prime function of the paranasal sinuses is to protect the organism, mostly by humidifying the inhaled air and facilitating the immune response of the respiratory system. This article will discuss the anatomy and function of the paranasal sinuses.

2023年7月24日 · Sinuses are located throughout the body and perform varying functions. Sinuses are typically associated with the cavities within the skull. The word “sinus” is most commonly understood to be the paranasal sinuses that are located near the nose and connect to …

2025年1月27日 · Anatomy and Location 1. Frontal Sinuses. Location: Found in the frontal bone, above the eyebrows. [8] Size and Shape: Varies in size and can be asymmetrical; often divided by a septum. Drainage Pathway: Drains into the middle meatus of the nasal cavity through the frontonasal duct. 2. Ethmoidal Sinuses (Ethmoid Air Cells)

2021年4月1日 · The paranasal sinuses are air filled extensions of the respiratory part of the nasal cavity. There are four paired sinuses, named according to the bone they are located in; maxillary, frontal, sphenoid and ethmoid.

2023年2月11日 · While seemingly simple, sinonasal anatomy comprises intricate and subdivided air passages and drainage pathways that connect the sinuses. See Image. Diagram of the Frontal Sinus Anatomy, Coronal View.

Optional Reading Clinically Oriented Anatomy, 7th ed., Nose section through Transillumination of sinuses; The Developing Human: Clinically Oriented Embryology, 11th ed., Development of nasal cavities section thorough Postnatal development of paranasal sinuses. The nose The nose is the portion of the respiratory tract above the palate. It consists of two parts: an external nose on

2023年1月30日 · The paranasal sinuses (the hollow spaces in the skull and facial bones around the nose) are air-filled cavities within the frontal, ethmoidal, sphenoidal, and maxillary bones. [1] . They are outgrowths from the nasal cavity. All of them drain into the …