Deoxygenated Blood
Deoxygenated Blood - Related Videos
08:15
Temperature-programmed Deoxygenation of Acetic Acid on Molybdenum Carbide Catalysts
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Cited by 1 •
2017
Presented here is a protocol for the operation of a micro-scale temperature-programmed reactor for evaluating the catalytic performance of molybdenum carbide during acetic acid deoxygenation.
08:23
Characterization of Sickling During Controlled Automated Deoxygenation with Oxygen Gradient Ektacytometry
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Cited by 16 •
2019
Here, we present oxygen gradient ektacytometry, a rapid and reproducible method to measure red blood cell deformability in samples from patients with sickle cell disease under controlled deoxygenation and reoxygenation. This technique provides a way to study red blood cell sickling and to monitor sickle cell disease treatment efficacy.
03:46
Blood Oxygen Level-Dependent Functional Magnetic Resonance Imaging of the Visual Cortex
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2025
Source: Galenchik-Chan, A., et al. Functional Magnetic Resonance Imaging (fMRI) of the Visual Cortex with Wide-View Retinotopic Stimulation. J. Vis. Exp. (2023). The video demonstrates functional magnetic resonance imaging (fMRI) of the visual cortex to map activity based on blood oxygenation levels. Structural MRI images are acquired as anatomical references, followed by fMRI scans. Visual stimuli are displayed to activate retinotopic neurons in the visual cortex. The increased energy demand...
06:32
Blood Withdrawal II
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN The collection of blood from mice and rats for analysis can be done through a variety of methods. Each method of collection has variations in the type of restraint required, the invasiveness of the procedure, and the necessity of a general anesthetic.1Historically, the use of the retro-orbital sinus cavity has been used, but not without debate. The controversy related to the potential tissue...
06:17
Repeated Blood Collection for Blood Tests in Adult Zebrafish
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Cited by 87 •
2015
Repeated blood sampling is necessary and important in animal research. We developed a novel, non-lethal and reliable method for repeated blood collection from adult zebrafish, and applied this method to the study of blood biochemistry, including glucose metabolism.
FAQs
As blood reaches body tissues, hemoglobin releases oxygen for cellular metabolism and binds some carbon dioxide produced during tissue activity. This changes the blood’s gas content before it returns toward the heart. The interaction between hemoglobin, oxygen, and carbon dioxide connects blood circulation with the chemical demands of living cells.
Its darker appearance reflects the change in blood associated with reduced oxygen content after oxygen delivery to tissues. This visible difference helps illustrate that blood has passed through the body’s systemic circulation. Color alone, however, represents a circulation stage rather than the complete process of gas exchange or tissue oxygenation.
After returning from body tissues, blood enters the right side of the heart, which directs it toward the lungs. In the pulmonary capillaries, gas exchange removes carbon dioxide and restores oxygen content. This pathway separates the return phase of circulation from the exchange phase that prepares blood for delivery to tissues again.
Returning blood carries the consequences of tissue oxygen use back toward the lungs, where its gas content can be renewed. This continuous movement supports repeated oxygen delivery for cellular metabolism. It also allows carbon dioxide associated with tissue activity to reach the site where gas exchange replaces it with oxygen.
A useful biology approach is to follow the sequence from oxygen delivery to tissues, through venous return to the right side of the heart, and onward to the pulmonary capillaries. At each stage, track oxygen release, carbon dioxide binding, and gas exchange. This sequence clarifies how circulation and respiration operate together.
The changing gas content of blood provides a way to connect tissue activity with circulation. Oxygen release indicates delivery to cells, while carbon dioxide binding reflects part of the return process. Examining these changes helps explain tissue oxygenation and shows why disrupted circulation or respiration can interfere with normal biological function.
Its normal movement depends on coordinated circulation, heart pumping, pulmonary capillary gas exchange, and oxygen delivery to tissues. Problems affecting cardiovascular or respiratory function may disrupt one or more of these linked stages. Studying the normal pathway therefore provides biological context for understanding how impaired circulation or respiration can affect oxygenation.