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Related Concept Videos

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...
Overview of the Vascular System01:20

Overview of the Vascular System

The vascular system comprises an extensive network of arteries, capillaries, and veins. The vascular system can be broadly divided into the blood and lymphatic systems. Typically, blood vessels can be categorized into three histological regions: tunica intima, tunica media, and tunica adventitia. The tunica intima consists of a single layer of endothelial cells attached to the basal lamina. Underlying the basal lamina is a connective tissue layer and an elastic lamina that gives stability and...
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
Anatomy of Blood Vessels01:20

Anatomy of Blood Vessels

The vascular system, an integral part of the circulatory system, comprises various blood vessels that play crucial roles in maintaining the body's homeostasis. These blood vessels form a complex and efficient circulatory network. The three primary categories of blood vessels are the arteries, veins, and capillaries.
Arteries
Arteries circulate oxygenated blood from the heart, except the pulmonary artery, which transports deoxygenated blood to the lungs. Large arteries, such as the aorta, have...
Layers of the Heart Wall01:15

Layers of the Heart Wall

The heart wall comprises three distinct layers: the epicardium, myocardium, and endocardium. The outermost layer, the epicardium, is the visceral layer of the serous pericardium, featuring a thin, transparent mesothelial surface and an inner layer of areolar connective tissue with fat deposits that increase with age.
The myocardium, the thickest layer, consists of cardiac muscle cells interconnected by intercalated discs and crisscrossing connective tissue fibers. These muscle fibers contract...
Anatomy of the Circulatory System02:03

Anatomy of the Circulatory System

The human circulatory system consists of blood, blood vessels that carry blood away from the heart, around the body, and back to the heart, and the heart itself, which acts as a central pump. The systemic circuit supplies blood to the whole body, the coronary circuit supplies blood to the heart, and the pulmonary circuit supplies blood flow between the heart and lungs.

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Related Experiment Video

Updated: Jul 5, 2026

In Vitro and In Vivo Model to Study Bacterial Adhesion to the Vessel Wall Under Flow Conditions
10:24

In Vitro and In Vivo Model to Study Bacterial Adhesion to the Vessel Wall Under Flow Conditions

Published on: June 11, 2015

The vessel wall and its interactions.

Denisa D Wagner1, Paul S Frenette

  • 1Immune Disease Institute and Department of Pathology, Harvard Medical School, Boston, MA 02115, USA. wagner@idi.harvard.edu

Blood
|May 27, 2008
PubMed
Summary
This summary is machine-generated.

Blood cell interactions with the vessel wall are crucial. Dysregulation of leukocyte and platelet interactions with the endothelium can cause inflammation and thrombosis, leading to significant health issues.

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Last Updated: Jul 5, 2026

In Vitro and In Vivo Model to Study Bacterial Adhesion to the Vessel Wall Under Flow Conditions
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Area of Science:

  • Cardiovascular Biology
  • Hematology
  • Cellular and Molecular Medicine

Background:

  • Historical context of blood cell-vasculature interactions.
  • Emerging understanding of leukocyte and platelet roles in vascular health.

Observation:

  • Leukocyte and platelet interactions with endothelium are key components of complex cellular networks.
  • These interactions are implicated in pathological inflammation and thrombosis.

Findings:

  • The review details the historical progression of understanding blood cell-vasculature interactions.
  • It synthesizes recent advancements in the field.
  • Unresolved questions and future research directions are highlighted.

Implications:

  • Understanding these interactions is vital for addressing major causes of morbidity and mortality.
  • Insights can inform therapeutic strategies for inflammatory and thrombotic diseases.
  • Further research is needed to fully elucidate these complex biological networks.