Related Experiment Video
Updated: Nov 25, 2025
10:25
In Utero Intra-cardiac Tomato-lectin Injections on Mouse Embryos to Gauge Renal Blood Flow
Published on: February 4, 2015
10.1K
Kidney Physiology in Pregnancy
1Division of Nephrology and Hypertension, Department of Medicine, Albany Medical College, Albany, NY.
Advances in Chronic Kidney Disease
|December 17, 2020
Summary
Pregnancy significantly alters kidney function, increasing filtration and blood flow to support maternal and fetal health. Understanding these physiological changes is crucial for identifying potential kidney issues during gestation.
Area of Science:
- Nephrology
- Obstetrics
- Physiology
Background:
- Pregnancy involves substantial physiological adaptations.
- The kidneys are central to maintaining maternal and fetal well-being during gestation.
- Understanding renal changes is key for managing pregnancy.
Purpose of the Study:
- To provide an overview of the healthy kidney response during pregnancy.
- To highlight the importance of recognizing normal physiological adaptations.
- To aid in the early identification of kidney pathology in pregnancy.
Main Methods:
- Review of current understanding of renal physiology in pregnancy.
- Analysis of hormonal and hemodynamic changes affecting the kidneys.
- Examination of electrolyte, acid-base, and filtration rate alterations.
Main Results:
- Increased renal blood flow and glomerular filtration rate are observed.
- Renin-angiotensin-aldosterone axis activation leads to electrolyte and water balance changes.
- Mild proteinuria, glucosuria, and decreased serum calcium/magnesium are common findings.
Conclusions:
- Kidney adaptations are essential for a healthy pregnancy.
- Recognizing normal renal changes aids in differentiating physiological responses from pathology.
- This knowledge is vital for optimal care of pregnant patients.
Related Concept Videos
01:33Hormonal Regulation
35.1K
The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
35.1K
01:45Kidney Structure
73.4K
The kidneys are two large bean-shaped organs located in the upper abdomen. They filter the blood several times a day to remove toxins and rebalance water and electrolytes of the circulatory system via the renal veins. The kidneys receive blood directly from the heart via the renal arteries. These arteries enter the kidney at the hilum, the concave surface of the bean, where they branch and divide into smaller vessels and capillaries.
73.4K
01:22Physiology of the Genitourinary System II: Tubular Reabsorption and Secretion
602
The kidneys maintain homeostasis through filtration, reabsorption, and secretion. Tubular reabsorption and secretion are crucial in forming urine and regulating electrolytes, water balance, and waste elimination.Tubular Reabsorption and Secretion ProcessesTubular reabsorption is the process that reclaims essential substances such as electrolytes, glucose, amino acids, and water from the glomerular filtrate back into the bloodstream. This is achieved through passive and active transport...
602
01:29Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration
361
The kidneys are vital organs responsible for regulating blood filtration, waste excretion, and fluid balance, all of which are crucial for maintaining homeostasis. Renal physiology examines renal blood flow, glomerular filtration, and urine formation, ensuring the body’s internal environment remains stable.Renal Blood FlowThe kidneys receive about 20-25% of the cardiac output, typically around 1200 mL of blood per minute in an average adult. Blood flows into the kidneys through the renal...
361
01:24Physiology of Urine Formation
9.9K
Urine formation is an essential function of the human body. It plays a critical role in maintaining homeostasis by regulating the volume and composition of body fluids. The kidneys, the primary organs involved in this process, filter blood to remove waste products and excess substances, ultimately producing urine.
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
9.9K
01:13Introduction to Urinary System
6.9K
The urinary system consists of two kidneys, two ureters, the urinary bladder, and the urethra.
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
6.9K