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Physiology Tutorial - Coronary Circulation
http://www.vhlab.umn.edu/atlas/physiology-tutorial/coronary-circulation.shtml
The ascending portion of the aorta is where the origins (ostia) of the right and left coronaries reside; specifically, they exit the ascending aorta immediately superior to the aortic valve at the sinus of Valsalva. Blood flow into the coronary arteries is greatest during ventricular diastole when aortic pressure is highest and it is greater ...
20.5 Circulatory Pathways – Anatomy & Physiology
https://open.oregonstate.education/aandp/chapter/20-5-circulatory-pathways/
Coronary Circulation The first vessels that branch from the ascending aorta are the paired coronary arteries (see Figure 20.5.4 ), which arise from two of the three sinuses in the ascending aorta just superior to the aortic semilunar valve. These sinuses contain the aortic baroreceptors and chemoreceptors critical to maintain cardiac function.
Blood flow characteristics in the ascending aorta after aortic valve ...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5099073/
2.4. Evaluation of blood flow vortex and helix in the ascending aorta. Flow vortex and helix were evaluated in the ascending aorta using particle traces and systolic streamlines in a complementary approach by consensus of two readers. Streamlines represent the instantaneous path tangent to the velocity vectors at a specific point in time.
Circulatory Pathways | SEER Training
https://www.training.seer.cancer.gov/anatomy/cardiovascular/blood/pathways.html
Pulmonary Circuit. Pulmonary circulation transports oxygen-poor blood from …
Understanding Coronary Blood Flow - Circulation
https://www.ahajournals.org/doi/full/10.1161/circulationaha.105.617183
In this week’s Circulation, Davies et al 1 used computer analysis of recordings of blood flow and pressure to detect and quantify intracoronary waves and to study coronary flow events in normal subjects and those with left ventricular hypertrophy (LVH). Waves were generated from both ends of the coronary tree. Proximal waves moved forward; distal waves …
Blood Flow Through the Heart - Austin Community College District
https://www.austincc.edu/apreview/EmphasisItems/Bloodflowthroughtheheart.html
Blood Flow Through the Heart. Beginning with the superior and inferior vena cavae and the coronary sinus, the flowchart below summarizes the flow of blood through the heart, including all arteries, veins, and valves that are passed along the way. 1. Superior and inferior vena cavae and the coronary sinus. 2.
6.6: Circulatory Pathways - Biology LibreTexts
https://bio.libretexts.org/Courses/Lumen_Learning/Book%3A_Anatomy_and_Physiology_II_(Lumen)/06%3A_Module_4-_The_Cardiovascular_System-_Blood_Vessels_and_Circulation/6.06%3A_Circulatory_Pathways
Coronary Circulation The first vessels that branch from the ascending aorta are the paired coronary arteries, which arise from two of the three sinuses in the ascending aorta just superior to the aortic semilunar valve. These sinuses contain the aortic baroreceptors and chemoreceptors critical to maintain cardiac function.
Physiology, Coronary Circulation - StatPearls - NCBI Bookshelf
https://www.ncbi.nlm.nih.gov/books/NBK482413/
The heart is highly metabolically active and boasts the highest oxygen consumption by mass of any organ. This demand for oxygen is met by the coronary circulation, which is responsible for delivering blood to the myocardium and represents approximately 5% of cardiac output.[1] Adequate blood flow through the coronary vessels is critical to avoid …
Circulation of Blood through the Heart (Anatomical Pathway)
http://shadwige.sites.truman.edu/cardiovascular-anatomy-and-physiology/circulation-of-blood-through-the-heart-anatomical-pathway/
Two main coronary arteries branch off the trunk of the aorta close to the aortic valve (but outside of the chambers of the heart). Coronary arteries receive perfusion of blood from the aorta during diastole when the ventricular myocardium is resting. This allows for more time to oxygenate the myocardium between ventricular contractions.
Blood velocity distribution in the human ascending aorta
https://pubmed.ncbi.nlm.nih.gov/3297390/
Mapping of blood velocities across the lumen of the ascending aorta was performed in eight patients during open-heart surgery. A Doppler ultrasound probe was constructed to measure velocities in 2 mm steps from the maximum convexity to the maximum concavity of aorta, 6 to 7 cm above the aortic valve …
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