Question: Which Of The Following Forces Oppose Glomerular Filtration?

What three driving forces determine glomerular filtration rate?

glomerular filtration rate (GFR) – The total amount of plasma filtrate formed by all the nephrons of the kidneys per minute; it is determined physiologically by three factors: (1) the total surface area available for filtration, (2) the permeability of the filtration membrane, and (3) the net filtration pressure; ….

How is Na+ reabsorbed?

Na+ is reabsorbed by active transport using ATP. Most of the energy used for reabsorption is for Na+. Major calyces are: … Major calyces are the large branches of the renal pelvis.

What is the formula for net filtration pressure?

NET FILTRATION PRESSURE (NFP) is the total pressure that promotes filtration. To calculate NFP, we subtract the forces that oppose filtration from the GBHP. A normal NFP (using the figures mentioned) would be: NFP=55-(15+30)=55-45=10mm Hg.

What is the triple layered muscle responsible for urinary bladder contractions?

The detrusor muscle, also detrusor urinae muscle, muscularis propria of the urinary bladder and (less precise) muscularis propria, is smooth muscle found in the wall of the bladder.

What’s the glomerulus?

The glomerulus is a tuft of capillaries located within Bowman’s capsule within the kidney. … Blood enters the capillaries of the glomerulus by a single arteriole called an afferent arteriole and leaves by an efferent arteriole.

Where does glomerular filtration occur?

Filtration takes place in the glomerulus , which is the vascular beginning of the nephron . Approximately one-fourth of the blood flow from cardiac output circulates through the kidney, the greatest rate of blood flow for any organ .

Which of the following opposes glomerular filtration?

27 Cards in this Set1) Which of the following is NOT a function of the kidneys?B) Storage of urine7) Which pressure opposes glomerular filtration?A) capsular hydrostatic pressure B) blood colloidal osmotic pressure D) A and B are correct25 more rows

What are the forces opposing filtration at the glomerulus quizlet?

What forces favour (1) and oppose (2) filtration of the glomerulus? Favor = Glomerular capillary blood pressure. Oppose = Plasma-colloid Osmotic Pressure (Oncotic) and Hydrostatic pressure in Bowman’s capsule.

Which two factors negatively affect glomerular filtration rate?

Increased blood volume and increased blood pressure will increase GFR. Constriction in the afferent arterioles going into the glomerulus and dilation of the efferent arterioles coming out of the glomerulus will decrease GFR. Hydrostatic pressure in the Bowman’s capsule will work to decrease GFR.

How do we calculate GFR?

eGFR is estimated GFR calculated by the abbreviated MDRD equation : 186 x (Creatinine/88.4)-1.154 x (Age)-0.203 x (0.742 if female) x (1.210 if black). If you have an eGFR value calculated by a local laboratory, use that.

What level of creatinine indicates kidney failure?

Creatinine levels in the blood can vary depending on age, race and body size. A creatinine level of greater than 1.2 for women and greater than 1.4 for men may be an early sign that the kidneys are not working properly. As kidney disease progresses, the level of creatinine in the blood rises.

What is the process of glomerular filtration?

Glomerular filtration is the first step in making urine. It is the process that your kidneys use to filter excess fluid and waste products out of the blood into the urine collecting tubules of the kidney, so they may be eliminated from your body.

What is glomerular filtration rate mean?

Glomerular filtration rate (GFR) is a test used to check how well the kidneys are working. Specifically, it estimates how much blood passes through the glomeruli each minute.

What is normal glomerular filtration?

A GFR of 60 or higher is in the normal range. A GFR below 60 may mean kidney disease. A GFR of 15 or lower may mean kidney failure.

What does 60 mean?

The number 60 in general symbolizes love, nurturing, home and family. This is a number of harmony, balance, idealism and harmonious family relationships. People who resonate with the number 60 are concerned and responsible for the wellbeing of others, especially their family members.