Table of Contents
What transports blood directly into the glomerulus?
…off short branches called the afferent arterioles, which carry blood to the glomeruli where they divide into four to eight loops of capillaries in each glomerulus.
How does the glomerulus receive blood and how is it taken away?
(microscopic blood vessels) called the glomerulus. Blood flows into and away from the glomerulus through small arteries (arterioles) that enter and exit the glomerulus through the open end of the capsule.
Where does the glomerulus receives blood from?
The glomerulus is a capillary tuft that receives its blood supply from an afferent arteriole of the renal circulation. Here, fluid and solutes are filtered out of the blood and into the space made by Bowman’s capsule.
What blood vessel enters the glomerulus?
Blood enters the glomerulus through an afferent arteriole, and exits via an efferent arteriole.
How does reabsorption occur in the kidney?
Reabsorption is the movement of water and solutes from the tubule back into the plasma. Reabsorption of water and specific solutes occurs to varying degrees over the entire length of the renal tubule. Bulk reabsorption, which is not under hormonal control, occurs largely in the proximal tubule.
Which blood vessel carries blood into a glomerulus quizlet?
The small artery that carries blood toward the capillaries of the glomerulus. The cells of the afferent artery at the juxtaglomerular apparatus.
What makes up the glomerulus?
The glomerulus is the filtering unit of the kidney and is composed of a network of capillaries and highly differentiated epithelial cells, the podocytes, which regulate selective filtration of blood into an ultrafiltrate that will become ultimately urine (Greka and Mundel, 2012).
How does glomerular filtration work?
During filtration, blood enters the afferent arteriole and flows into the glomerulus where filterable blood components, such as water and nitrogenous waste, will move towards the inside of the glomerulus, and nonfilterable components, such as cells and serum albumins, will exit via the efferent arteriole.
What is reabsorbed in the glomerulus?
3. Reabsorption Moves Nutrients and Water Back into the Bloodstream. The glomerulus filters water and small solutes out of the bloodstream. The resulting filtrate contains waste, but also other substances the body needs: essential ions, glucose, amino acids, and smaller proteins.
How does ultrafiltration produces glomerular filtrate?
The process by which glomerular filtration occurs is called renal ultrafiltration. The force of hydrostatic pressure in the glomerulus (the force of pressure exerted from the pressure of the blood vessel itself) is the driving force that pushes filtrate out of the capillaries and into the slits in the nephron.
What drains the glomerulus of blood?
a. Arterioles supply and drain glomerulus, so we refer to afferent and efferent arterioles.
Which of the following best represents the path of a blood cell as it passes through the kidney?
BIOL 1300 Exam 6
| Question | Answer |
|---|---|
| The term retroperitoneal means | behind the peritoneum |
| The outer portion of the kidney is called the | renal cortex |
| Which of the following best represents the path of a blood cell as it passes through the kidney? | glomerus, afferent arteriole, pertibular capillaries, renal vein |
How is the blood filtered through the glomerulus?
The glomerulus filters your blood As blood flows into each nephron, it enters a cluster of tiny blood vessels—the glomerulus. The thin walls of the glomerulus allow smaller molecules, wastes, and fluid—mostly water—to pass into the tubule. Larger molecules, such as proteins and blood cells, stay in the blood vessel.
How is high blood pressure built up in the glomerulus?
Constriction of efferent arterioles as blood exits the glomerulus provides resistance to blood flow, preventing a pressure drop, which could not be achieved if blood were to flow into venules, which do not really constrict. The two arterioles change in size to increase or decrease blood pressure in the glomerulus.
Where does the blood go when it enters the nephron?
As blood flows into each nephron, it enters a cluster of tiny blood vessels—the glomerulus. The thin walls of the glomerulus allow smaller molecules, wastes, and fluid—mostly water—to pass into the tubule. Larger molecules, such as proteins and blood cells, stay in the blood vessel.
Where is the glomerulus located in the renal system?
The glomerulus is nestled inside a cup-like sac located at the end of each nephron, called a glomerular capsule. Glomerular capillaries have small pores in their walls, just like a very fine mesh sieve.