Blood vessels travel in parallel to provide fresh blood to all tissue. However, one of the exceptions is the two capillary beds of the kidneys located in series. Blood flow occurs as follows: afferent arteriole- glomerulus- efferent arteriole - the peritubular capillaries. How does this series of blood flow benefit the kidneys and homeostasis?
Blood vessels travel in parallel to provide fresh blood to all tissue. However, one of the exceptions is the two capillary beds of the kidneys located in series. Blood flow occurs as follows: afferent arteriole- glomerulus- efferent arteriole - the peritubular capillaries. How does this series of blood flow benefit the kidneys and homeostasis?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:**Understanding Renal Blood Flow and Its Role in Homeostasis**
Blood vessels typically travel in parallel to deliver fresh blood to all tissues efficiently. However, the kidneys are an exception, featuring two capillary beds arranged in series. This distinctive arrangement allows blood to flow sequentially through the kidneys as follows:
1. **Afferent Arteriole**: Blood enters the glomerulus through this vessel.
2. **Glomerulus**: A network of capillaries where filtration occurs.
3. **Efferent Arteriole**: Blood exits the glomerulus through this vessel.
4. **Peritubular Capillaries**: Blood travels to these capillaries, which surround the renal tubules, allowing for exchange of substances.
**Benefits of Series Blood Flow in the Kidneys:**
This unique series of blood flow enhances the kidneys' ability to regulate fluid balance, electrolytes, and nitrogenous waste, thus maintaining homeostasis. By facilitating efficient filtration and reabsorption, the kidneys can fine-tune the composition of blood, ensuring essential nutrients are conserved while waste products are excreted.
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