English for doctors. Nasal cavities (most important)

Lecture notes, cheat sheets
Free library / Directory / Lecture notes, cheat sheets

English for doctors. Nasal cavities (most important)

Lecture notes, cheat sheets

Table of contents (expand)

39. Nasal cavities

The anatomical structures that play a central role in the res piratory system are located in the head and neck as well as the thorax.

Nasal cavities are separated by the nasal septum, which consists of the vomer, the perpendicular plate of the ethmoid bone, and the septal cartilage. The lateral wall of each nasal cavity features three scroll-shaped bony structures called the nasal conchae. The nasal cavities communicate posteriorly with the nasopharynx through the choanae. The spaces inferior to each concha are called meatus. The paranasal sinus-ses and the nasolacrimal duct open to the meati. The inferior concha is a separate bone, and the superior and middle conchae are parts of the ethmoid bone.

Inferior meatus. The only structure that opens to the inferior meatus is the nasolacrimal duct. This duct drains lacrimal fluid (ie, tears) from theTneaTaraspect of the orbit to the nasal cavity.

Middle meatus: the hiatus semilumaris contains openings of frontal and maxillary sinuses and americy ethmo-idal air cells. The bulla ethmoidalis contains the opening for'the middle ethmoidal air cells.

Superior meatus contains an opening for thff'posterior ethmoidal air cells.

Sphenoethmoidal recess is located above the superior concha and contains an opening for the sphenoid sinus.

Innervation: Somatic innervation. General sensory information from the lateral wall and septum of the nasal cavity is conveyed to the CNS by branches of V, and V2.

Autonomic innervation. Preganglionic parasympathetic fibers are destined to supply the glands of the nasal mucosa and the lacrimal gland travel in the nervus intermedius and the greater superficial petrosal branches of the facial nerve (CN VII). These fibers synapse in the pte-rygopalatine ganglion, which is located in the pterygopa-latine fossa. Postganglionic fibers traveling to the mucous glands of the nasal cavity, paranasal air sinuses, hard and soft palate, and the lacrimal gland follow branches of V2 and in some cases V1, to reach their destinations.

new words

anatomical - anatomical

respiratory system - respiratory system

head - head

neck - neck

nasal cavities - nasal cavities

the perpendicular plate - perpendicular plate

ethmoid - slatted

septal - pertaining to the septum

nasal conchae - nasal concha

paranasal - paranasal

sinuses - sinuses

nasolacrimal - nasolacrimal

duct - tubule

drain - duct

tears - tears

orbit - orbit

maxillary - maxillary

bulla - bulla

Author: Elena Belikova

<< Back: Pleura

>> Forward: Pharynx and related areas

We recommend interesting articles Section Lecture notes, cheat sheets:

▪ Concepts of modern natural science. Lecture notes

▪ Family law. Lecture notes

▪ History of psychology. Crib

See other articles Section Lecture notes, cheat sheets.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

Random news from the Archive

Smartphone Microsoft Lumia 430 28.03.2015

Microsoft has introduced the new cheapest smartphone model in the Lumia line - Microsoft Lumia 430. The device will be sold for $70 with pre-installed Windows Phone 8.1 operating system and Lumia Denim update. Subsequently, Lumia 430 users will be able to upgrade the firmware to Windows 10, Microsoft said.

Lumia 430 is equipped with a 4-inch display with a resolution of 800 x 480 pixels (235 ppi), Qualcomm Snapdragon 2-core processor with a frequency of 1,2 GHz, 1 GB of RAM and 8 GB of internal memory, which can be expanded with microSD memory cards.

The model has two slots for SIM-cards of the MicroSIM standard. It does not support 4G technology (only 2G / 3G). Standby time with two active SIM-cards is up to 12 days (with one SIM-card - up to 19 days). Talk time - up to 12,9 hours. Battery capacity - 1500 mAh.

The smartphone is equipped with two cameras: the resolution of the front is 0,3 MP, rear - 2 MP. There is no autofocus or flash. Supports video recording with a maximum resolution of 848 x 480 pixels.

The model supports GPS. It will be offered with the standard free apps, including Microsoft Office, Skype, as well as a selection of navigation apps - Bing Maps, Here Maps and Here Drive+. There is also a built-in FM radio.

Other interesting news:

▪ Ambulance notification

▪ Copper magnetism for atomic-level memory

▪ Wing Drone Delivery Service

▪ Oxygen found in a distant galaxy

▪ Aqua Computer Kryographics Next full coverage water blocks

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the website Basics of First Medical Aid (BFA). Selection of articles

▪ article Beaufort scale, an approximate estimate of wind speed. Fundamentals of safe life

▪ article Why does a person yawn and is it true that yawning is contagious? Detailed answer

▪ article Deputy Director for Human Resources. Job description

▪ article Electrician's tool. Encyclopedia of radio electronics and electrical engineering

▪ article AC power supply for a screwdriver. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

Home page | Library | Articles | Website map | Site Reviews