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相关概念视频

Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

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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....
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Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

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Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
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Pressure Relationships in Thoracic Cavity01:24

Pressure Relationships in Thoracic Cavity

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Breathing, otherwise known as pulmonary ventilation, is the process of air movement into and out of the lungs. The main mechanisms propelling pulmonary ventilation are atmospheric pressure (Patm), intra-pulmonary (Ppul ) or intra-alveolar pressure (Palv) within the alveoli, and intrapleural pressure (Pip) within the pleural cavity.
Breathing Mechanisms
Both intra-alveolar and intrapleural pressures rely on specific lung properties. The ability to breathe—allowing air to enter the lungs...
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Nose and Nasal Cavity01:24

Nose and Nasal Cavity

1.5K
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...
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Respiratory Volumes01:15

Respiratory Volumes

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Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
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Respiratory Volumes and Capacities01:22

Respiratory Volumes and Capacities

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The respiratory system is responsible for the intake of oxygen and the expulsion of carbon dioxide from the body. Respiratory volumes describe the volume of air in the lungs at different phases of the respiratory cycle. Tidal volume is the air breathed in and out during normal, quiet breathing. Inspiratory reserve volume is the air that can be forcefully inspired beyond the tidal volume. In contrast, expiratory reserve volume refers to the air that can be expelled from the lungs after a normal...
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相关实验视频

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A Finite Element Approach for Locating the Center of Resistance of Maxillary Teeth
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影响大鼻腔通风和大鼻腔体积的结构之间的关系:CT研究

Mervenur Güven1, Duygu Akin Saygin2, Ismihan Ilknur Uysal3

  • 1Health Sciences Institute, Necmettin Erbakan University, Konya, Turkey.

Surgical and radiologic anatomy : SRA
|March 12, 2025
PubMed
概括

解剖学变异,如七度增加大鼻腔的体积,而鼻腔隔膜偏差减少它. 大多数个体都有变异,这强调了在手术规划中需要详细的CT扫描.

关键词:
附属的奥斯蒂乌姆 (ostium) 是一个配件.康卡的异常情况哈勒细胞是一种哈勒细胞.输液西装 输液西装受影响的牙受到冲击.大鼻腔的体积大小.

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科学领域:

  • 人体解剖学 解剖学 解剖学
  • 放射学 放射学是一门学科.
  • 医疗成像医学成像

背景情况:

  • 大鼻腔 (MS) 内部和周围的解剖学变异是常见的.
  • 了解这些变异对于解释鼻病理和计划手术干预至关重要.
  • 之前的研究已经探索了特定的变异,但需要对它们的共存和对MS体积的影响进行全面分析.

研究的目的:

  • 为了识别和量化尾鼻腔 (MS) 内部和外部的解剖变异.
  • 确定这些变异在没有多发性硬化病理的个体中的流行率和共存.
  • 为了研究确定解剖变异和MS体积之间的关系.

主要方法:

  • 使用ImFusion Suite软件对330个鼻CT扫描进行分析.
  • 鉴定变异:辅助骨,哈勒细胞,状鼻腔,形异常,,受冲击的牙和鼻腔隔膜偏差 (NSD).
  • 测量MS体积和NSD角度,然后进行统计分析以评估与性别和变化的关系.

主要成果:

  • 鼻隔膜偏差 (NSD) 是最常见的变异 (98%).
  • 多发性硬化症的体积在男性中明显大于女性,并且随着形增加,但随着NSD角度≥9°而减少.
  • 多种变异通常共存,仅在2.1%的病例中观察到正常解剖.

结论:

  • 在鼻中,解剖学变异非常普遍.
  • 七度与MS体积增加有关,而显著的NSD (≥9°) 与MS体积减少有关.
  • 对解剖变异进行详细的放射性评估对于有效的临床和手术治疗鼻疾病至关重要.