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Blood Flow01:29

Blood Flow

Blood is pumped by the heart into the aorta, the largest artery in the body, and then into increasingly smaller arteries, arterioles, and capillaries. The velocity of blood flow decreases with increased cross-sectional blood vessel area. As blood returns to the heart through venules and veins, its velocity increases. The movement of blood is encouraged by smooth muscle in the vessel walls, the movement of skeletal muscle surrounding the vessels, and one-way valves that prevent backflow.
Overview of Blood Vessels01:14

Overview of Blood Vessels

The human cardiovascular system comprises five primary types of blood vessels: arteries, arterioles, veins, venules, and capillaries, each serving unique functions.
Arteries and Arterioles: Arteries are muscular and elastic vessels that primarily carry oxygenated blood from the heart to body tissues, except for the pulmonary artery, which carries deoxygenated blood. They have thick walls to withstand high pressure and contain a layer of muscle tissue, allowing them to expand or contract as...
Structure of Blood Vessels01:15

Structure of Blood Vessels

Blood is circulated throughout the human body through a network of blood vessels called the circulatory system. This system includes arteries that transport blood from the heart to various body parts. These arterial pathways divide into smaller vessels until they reach the arterioles, which further split into capillaries. It is within these minuscule capillaries that the exchange of nutrients and waste products takes place. After this exchange, the blood is collected by venules, which fuse to...
Arteries and Arterioles01:16

Arteries and Arterioles

Arteries, the vasculature responsible for transporting blood from the heart, possess robust walls capable of enduring the elevated pressures exerted by the heartbeat. Arteries near the heart are especially thick-walled and enriched with elastic fibers across their three tunics, classifying them as elastic or conducting arteries. These arteries, usually with a diameter exceeding 10 mm, are characterized by their ability to dilate in response to the blood pumped from the heart's ventricles and...
Autoregulation of Blood Flow01:17

Autoregulation of Blood Flow

Autoregulation mechanisms are characterized by their inherent capacity for self-regulation without necessitating specific nervous stimulation or endocrine control. These mechanisms facilitate the adjustment of blood flow and, therefore, perfusion specific to each tissue region. This self-regulation encompasses chemical signals and myogenic controls.
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation.
Development of Blood Vessels01:07

Development of Blood Vessels

The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...

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Updated: Jun 21, 2026

Videomorphometric Analysis of Hypoxic Pulmonary Vasoconstriction of Intra-pulmonary Arteries Using Murine Precision Cut Lung Slices
13:32

Videomorphometric Analysis of Hypoxic Pulmonary Vasoconstriction of Intra-pulmonary Arteries Using Murine Precision Cut Lung Slices

Published on: January 14, 2014

調節性血管新生:より多く,より少なく

Branavan Sivakumar1, Lorraine E Harry, Ewa M Paleolog

  • 1Kennedy Institute of Rheumatology, Faculty of Medicine, Imperial College, London.

JAMA
|August 26, 2004
PubMed
まとめ
この要約は機械生成です。

このレビューでは,治療戦略として,新しい血管の成長である血管新生を調査します. がんや心血管疾患などの疾患の治療に対する最初の熱意は高かったが,現在の研究は,よりターゲットを絞ったアプローチの必要性を示している.

さらに関連する動画

Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro
10:25

Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro

Published on: March 19, 2016

In Vitro Model of Fetal Human Vessel On-chip to Study Developmental Mechanobiology
09:12

In Vitro Model of Fetal Human Vessel On-chip to Study Developmental Mechanobiology

Published on: July 28, 2023

関連する実験動画

Last Updated: Jun 21, 2026

Videomorphometric Analysis of Hypoxic Pulmonary Vasoconstriction of Intra-pulmonary Arteries Using Murine Precision Cut Lung Slices
13:32

Videomorphometric Analysis of Hypoxic Pulmonary Vasoconstriction of Intra-pulmonary Arteries Using Murine Precision Cut Lung Slices

Published on: January 14, 2014

Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro
10:25

Microfluidic Flow Chambers Using Reconstituted Blood to Model Hemostasis and Platelet Transfusion In Vitro

Published on: March 19, 2016

In Vitro Model of Fetal Human Vessel On-chip to Study Developmental Mechanobiology
09:12

In Vitro Model of Fetal Human Vessel On-chip to Study Developmental Mechanobiology

Published on: July 28, 2023

科学分野:

  • バイオメディカル研究
  • 血管生物学 血管生物学とは
  • 治療的ターゲットは,治療目標である.

背景:

  • 血管新生,つまり新しい血管の形成は,様々な病気に重大な影響を及ぼす複雑な生物学的プロセスです.
  • 血管化の操作は,治療的介入に対する実質的な関心を集めている.

研究 の 目的:

  • ガンや関節炎などの疾患における治療目標としての血管新生をレビューする.
  • 心血管疾患および骨折の治癒における血管新生を促進するための戦略を探求する.

主な方法:

  • 治療的な血管新生に焦点を当てた文献レビュー.
  • 血管新生ベースの治療法の臨床試験結果の分析.
  • 病気の病理学と治癒過程における血管新生の役割の検討.

主要な成果:

  • 血管新生を普遍的な治療薬として,特に腫瘍や糖尿病性網膜症,関節リウマチ症などの疾患に対する初期の熱意は,臨床試験の結果によって緩和されました.
  • 心血管疾患に対する治療的血管新生試験は,残念な結果をもたらしました.
  • 血管新生の複雑さは,より洗練された,ターゲットを絞った治療戦略への移行を必要とします.

結論:

  • 血管新生は万能薬ではないが,標的治療の開発の有望な分野である.
  • 課題を克服し,血管新生調節の臨床応用を最適化するためにさらなる研究が必要です.
  • 精密医学のアプローチは,さまざまな疾患の治療において,血管新生の恩恵を活用する可能性を秘めています.