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相关概念视频

Kidney Structure01:45

Kidney Structure

57.6K
The kidneys are two large bean-shaped organs located in the upper abdomen. They filter the blood several times a day to remove toxins and rebalance water and electrolytes of the circulatory system via the renal veins. The kidneys receive blood directly from the heart via the renal arteries. These arteries enter the kidney at the hilum, the concave surface of the bean, where they branch and divide into smaller vessels and capillaries.
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Introduction to Urinary System01:13

Introduction to Urinary System

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The urinary system consists of two kidneys, two ureters, the urinary bladder, and the urethra.
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
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Internal Anatomy of the Kidney01:12

Internal Anatomy of the Kidney

8.7K
The kidneys are essential organs in the human body, performing a myriad of tasks that maintain homeostasis and overall health.
Anatomical Position and Dimensions
The kidneys are retroperitoneal organs positioned against the posterior abdominal wall on either side of the spine, roughly between the twelfth thoracic and third lumbar vertebrae. Each kidney is typically 10-12 cm long, 5-6 cm wide, and 3-4 cm thick, weighing about 150 grams.
Renal Cortex
The outermost region of the kidney is the...
8.7K
Anatomy of the Genitourinary System I: Kidneys and Ureters01:11

Anatomy of the Genitourinary System I: Kidneys and Ureters

1.4K
The upper urinary system comprises two kidneys and two ureters, which are crucial in filtering blood and forming urine.KidneysLocation and Structure:The kidneys are two bean-shaped organs positioned behind the peritoneum on either side of the spine.Kidneys are between the 12th thoracic (T12) and the 3rd lumbar (L3) vertebrae.The position of the liver causes the right kidney to sit slightly lower than the left.Protective Layers:Each kidney is enveloped in a tough, fibrous membrane called the...
1.4K
Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration01:29

Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration

1.9K
The kidneys are vital organs responsible for regulating blood filtration, waste excretion, and fluid balance, all of which are crucial for maintaining homeostasis. Renal physiology examines renal blood flow, glomerular filtration, and urine formation, ensuring the body’s internal environment remains stable.Renal Blood FlowThe kidneys receive about 20-25% of the cardiac output, typically around 1200 mL of blood per minute in an average adult. Blood flows into the kidneys through the renal...
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Kidney Transplant I: Introduction01:28

Kidney Transplant I: Introduction

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A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...
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Updated: May 4, 2026

Cytosolic Calcium Measurements in Renal Epithelial Cells by Flow Cytometry
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Cytosolic Calcium Measurements in Renal Epithelial Cells by Flow Cytometry

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托马斯·威利斯 (1621年 - 1675年):对脏功能的第一步.

Livia Ann Frost, Garabed Eknoyan

    Clinical nephrology
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    概括
    此摘要是机器生成的。

    托马斯·威利斯在17世纪彻底改变了对功能的理解,从被动过器转变为主动调节器官. 他的工作奠定了现代脏病学和恒温的基础.

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    Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
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    A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
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    相关实验视频

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    Cytosolic Calcium Measurements in Renal Epithelial Cells by Flow Cytometry
    10:24

    Cytosolic Calcium Measurements in Renal Epithelial Cells by Flow Cytometry

    Published on: October 28, 2014

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    Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies
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    Observational Study Protocol for Repeated Clinical Examination and Critical Care Ultrasonography Within the Simple Intensive Care Studies

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    A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion
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    A Large Animal Model for Acute Kidney Injury by Temporary Bilateral Renal Artery Occlusion

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    科学领域:

    • 医学史 医学史 的历史
    • 腎臟病學 (nephrology) 是一種醫學專業.
    • 生理学 生理学 生理学

    背景情况:

    • 托马斯·威利斯 (1621-1675) 对了解功能做出了重大贡献.
    • 以前的理解认为脏是一种被动过器.
    • 十七世纪的医学思想受到加伦的幽默传统的严重影响.

    研究的目的:

    • 分析托马斯·威利斯对功能基础的未被认可的贡献.
    • 记录了解脏的范式转变,从一个被动的过器到一个活跃的调节器官.
    • 突出威利斯在脏生理学方面的概念进步及其对后来的科学思想的影响.

    主要方法:

    • 对托马斯·威利斯早期作品 (De Urinis, 1659) 和后期作品 (Pharmaceutice Rationalis, 1674-1675) 的比较分析.
    • 17世纪历史医学文本和生理学模型的综述.
    • 基于机械原理和观察的威利斯推理的检查,比显微镜和化学分析早.

    主要成果:

    • 威利斯提出了脏作为一个活跃的器官,通过管状功能平衡尿盐,超越了被动波器模型.
    • 他拒绝了盖伦的生理学,偏爱的是由血液循环驱动的"应力或透"的机械模型.
    • 威利斯将糖尿病确定为一种血液疾病,注意到糖尿病尿液的甜味,并认识到其系统性影响.

    结论:

    • 威利斯的研究表明,脏功能取决于血液循环的动态,并且管道改变了尿液的组成.
    • 他证明了尿路变化反映了全身生理学,而不仅仅是病理.
    • 他的概念框架提供了第一个恒温的系统模型,影响了19世纪生理学的发展.