Quick Answer: Which Structure Is Most Important For Urine Concentration Quizlet?

Which type of nephron determines the concentration of the urine?

juxtamedullary nephronsWhich type of nephron determines the concentration of the urine.

The juxtamedullary nephrons lie close to and extend deep into the medulla and are important for the concentration of urine.

Concentration of urine is not associated with midcortical, cortical, or medullary nephrons..

What affects the concentration of urine?

Increased urine concentration may be due to different conditions, such as: Heart failure. Loss of body fluids (dehydration) from diarrhea or excessive sweating. Narrowing of the kidney artery (renal arterial stenosis)

Which structure is the last in the sequence of urine flow?

The answer is D. urethra. Urine is formed in the kidneys, flows through the ureters into the urinary bladder, and from the urinary bladder, it flows through the urethra during the process of voiding.

How the urinary system works step by step?

When you urinate, the brain signals the bladder muscles to tighten, squeezing urine out of the bladder. At the same time, the brain signals the sphincter muscles to relax. As these muscles relax, urine exits the bladder through the urethra. When all the signals occur in the correct order, normal urination occurs.

Which structure is most important for urine concentration?

Which structure is most important for urine concentration? Capsular hydrostatic pressure is the chief force pushing water and solutes out of the blood and across the filtration membrane.

What controls the concentration of urine?

Urine volume and concentration is regulated through the same processes that regulate blood volume. Antidiuretic hormone (ADH)—produced by the posterior pituitary gland —increases the amount of water reabsorbed in the distal convoluted tubule and collecting duct.

How can I increase my urine concentration?

Water loading. Drinking large amounts of water or receiving fluids through a vein.Water deprivation. Not drinking fluids for a certain amount of time.ADH administration. Receiving antidiuretic hormone (ADH), which should cause the urine to become concentrated.

What is the concentration of urine?

Normal values tend to be in the range of at and slightly above the density of water (1.000 to 1.030). Your urine should be more concentrated after being given ADH. If your urine is very concentrated, your doctor may suspect one or more of the following conditions: dehydration.

Which is the correct order of urine flow through the structures of the kidney?

This process is called secretion. The secreted ions combine with the remaining filtrate and become urine. The urine flows out of the nephron tubule into a collecting duct. It passes out of the kidney through the renal pelvis, into the ureter, and down to the bladder.

Is urine acidic or basic?

According to the American Association for Clinical Chemistry, the average value for urine pH is 6.0, but it can range from 4.5 to 8.0. Urine under 5.0 is acidic, and urine higher than 8.0 is alkaline, or basic. Different laboratories may have different ranges for “normal” pH levels.

In what order does urine flow through the urinary system?

The tubule adjusts the level of salts, water, and wastes that will leave the body in the urine. Filtered blood leaves the kidney through the renal vein and flows back to the heart. Pee leaves the kidneys and travels through the ureters to the bladder. The bladder expands as it fills.

Where does the concentration of urine occur?

medullaThe region of the kidney that is responsible for the generation of concentrated or dilute urine is the medulla (figure 1).

What should not be found in urine?

The following are not normally found in urine:Hemoglobin.Nitrites.Red blood cells.White blood cells.

What are the normal components of urine?

It consists of water, urea (from amino acid metabolism), inorganic salts, creatinine, ammonia, and pigmented products of blood breakdown, one of which (urochrome) gives urine its typically yellowish colour.

What is the largest component of urine?

UreaWhat is the largest component of urine by weight (other than water)? Urea.

What does ADH do to urine concentration?

Antidiuretic hormone (ADH) is a chemical produced in the brain that causes the kidneys to release less water, decreasing the amount of urine produced. A high ADH level causes the body to produce less urine. A low level results in greater urine production.

Which hormone controls the concentration of urine?

This resorptive capacity in the ducts is regulated by antidiuretic hormone (ADH), which is secreted by the hypothalamus and stored in the posterior pituitary gland at the base of the brain. In the presence of ADH, the medullary collecting ducts become freely permeable to solute and water.

Where does the final concentration of urine occur?

A selective urine concentration process in the ascending & descending loops of Henle. Part of the nephron where the final concentration of urine takes place through the reabsorption of water. The passage of substances from the blood in the peritubular capillaries to the tubular filtrate.