Test 2 Flashcards
Which of the following fluid compartments contains the largest volume of water
Intracellular
Arrange the structures of the uribary system in correct sequence
Calyx Renal pelvis Ureter Urinary bladder Urethra
The predominant extracellular cation is
Sodium
Obese people are as little as 45% water by weight
True. More body fat= less body water
Women average slightly less body water because they have less adipose tissue than men
False women have more body fat and less skeletal muscle
The predominant intracellular cation is
Potassium
One difference between the plasma and interstitial fluid is that the plasma has significantly more ____ than interstitial fluid
Protein
The primary regulator of plasma sodium concentration
ADH
Increases water reabsorption in the kidneys
ADH
Both potassium and sodium levels in the body are regulated by
Aldosterone
Ms Wilson working in the hot sun loses the greatest amount of water from the
Skin
Which of the following substances releases H+ into a solution
Acids
Which of the following substances bonds to H+ and removes them from solution
Buffer system
Chemicals that function to resist changes in the pH of body fluids are called
Buffers
Glucose and amino acids are absorbed from the glomerular filtrate by
The proximal convoluted tube (pct)
The trigone is a triangle region of
The bladder
Delineated by 3 openings 2- ureteral and 1 urethral
The bladder
Trace the path of red blood cells from the renal artery to the glomerulus
Interlobar
Arcuate artery
Inter lobular
Afferent
(C) 1 3 2 4
Urine formation involves
Filtration of plasma
Reabsorption from filtrate
Secretion into filtrate
The urinary bladder
Is located posterior to the pubic symphysis
An obstruction in birin’s afferent arteriole would reduce the flow of blood into her
Glomerulus
Water moves back and forth across the plasma membrane by the process of
Osmosis
The cation that plays a major role in determining the osmotic pressure of the plasma is
Na+
The major route of excretion for sodium ions (under normal conditions) is the
Kidney
Water output is regulated by ______ hormone
Anti-diuretic
The osmotoreceptor- ADH mechanism can reduce a normal urine production of 1500 ml per day to about ____ ml per day when the body is dehydrated
500
The greatest amount of water is lost through the ___
Urine
Under normal conditions most water loss from the body is through the ____
Kidneys
The normal pH for blood plasma is
7.40
Which is not an excretory organ system of the body
Cardiovascular
Which is not part of the nephron
Uterer or collecting ducts
The kidney functions in
Excretion of wastes and excess ions
Which of the following functions would not be performed by the kidneys
Urine storage
Each kidney weighs
130g
Blood vessels nerves and the ureter enter and leave the kidney at the
Hilium
The portion of the kidney that is composed of cone shaped renal pyramids is called the
Medulla
The function units of the kidney are calle d
Nephrons