吐口鼻臓器は,吐口鼻臓器と呼ばれています.
1Sub-Department of Animal Behaviour, University of Cambridge, Madingley, Cambridge CB3 8AA, UK. ebk10@cus.cam.ac.uk
まとめ
嘔吐鼻臓器 (VNO) は,ユニークな受容体を使用して,非揮発性シグナルを検知し,下垂体経路経由で生殖や防御などの行動に影響を与えます. この化学感知システムは,重要な生理学的機能を調節する上で重要な役割を果たします.
科学分野:
- 神経科学は神経科学である.
- ケモセンセーション・ケモセンセーション
- 感覚生物学 感覚生物学について
背景:
- 嘔吐鼻臓器 (Vomeronasal organ,VNO) は,主要な嗅覚上皮質とは異なる特殊な化学感覚器官である.
- VNOニューロンは,通常の嗅覚受容体とは異なるユニークな受容体タイプを持っています.
- これらの受容体は,Gタンパク質に結合した7つのトランスメブランタンパク質です.
研究 の 目的:
- 嘔吐鼻臓器のユニークなシグナル伝達と機能的経路を解明する.
- VNOの活性化がより高い脳のセンターと行動にどのように影響するかを理解するために.
主な方法:
- VNO受容体の構造と信号伝達経路の分析.
- VNOから嗅覚球,桃体,下垂体への神経接続を追跡する.
主要な成果:
- VNO受容体は,周期性アデノシンモノフォスファート経路とは異なる,イノシトール1,4,5-トリフォスファートシグナル伝達を利用する.
- VNOは,非揮発性化学物質のシグナルに反応するようです.
- VNOの活性化は,下垂体における下流シグナル伝達につながり,重要な行動に影響を与えます.
結論:
- VNOは,非揮発性信号を検出する重要な化学感知システムです.
- VNO媒介の経路は,生殖,防御,および消化行動に著しく影響を与えます.
- VNOは,神経内分泌の調節と動機付けられた行動において重要な役割を果たします.
関連する概念動画
Nose and Nasal Cavity
The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
Pharynx
The pharynx, a tubular structure framed by skeletal muscle and lined with mucous membrane, extends continuously from the nasal cavities. It is segmented into three major areas: the nasopharynx, oropharynx, and laryngopharynx.
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
Esophagus
The esophagus, a muscular conduit linking the pharynx and stomach, measures roughly 10 inches (25.4 cm) and sits behind the trachea. It remains collapsed when not swallowing. The esophagus follows a predominantly straight path through the thoracic mediastinum and enters the abdominal cavity through a diaphragmatic opening known as the esophageal hiatus.
The movement of edibles from the pharynx into the esophagus is facilitated by the upper esophageal sphincter, which is formed primarily by the...
The movement of edibles from the pharynx into the esophagus is facilitated by the upper esophageal sphincter, which is formed primarily by the...
Anatomy of Respiratory System I: Upper Respiratory Tract
The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
Suctioning the Nasopharyngeal Airway
Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required
Equipment Required
Physiology of the Gastrointestinal System I: Ingestion and Propulsion
The physiology of the gastrointestinal system begins with ingestion as food enters the mouth.


