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WorksheetsUrinary System & Kidneys
Total questions: 25
Worksheet time: 13mins
The ________ is a sac-like muscular organ that stores urine until it is released from the body.
ureters
kidneys
bladder
urethra
The urine passes through the __________ as it passes out of the body.
urethra
ureters
bladder
kidney
part G is the
ureter
urethra
renal artery
renal vein
Part B is the
cortex
medulla
glomerulus
renal pyramid
What are the main excretory organs?
bladder
kidneys
ureters
urethra
Excess water and some chemical and cellular waste products eliminated from the body in liquid waste is called
urea
urine
liquid waste
solid waste
The two narrow tubes that urine flows through from the kidneys to the bladder are the
urethras
kidneys
esophagus
ureters
The process of artificially filtering the blood to remove waste is known as
kidney failure
kidney stones
lithotrypsy
dialysis
We become thirsty on a hot day too prompt us to drink to replace __________ in order to maintain homeostasis.
urine
wastes
blood
lost fluids
What structure in the kidneys filters the blood?
Ureters
Nephrons
Bladder
Urethra
Nephrons are the structural and functional units of the kidney. They are responsible for _________________________.
releasing urine from the body
forming urine
transporting water to the urinary bladder
transporting blood to the kidneys
______________________ is the fluid that passes from the blood through the capillary walls of the glomeruli into Bowman’s capsule.
Glomerular filtrate
Urine
Urea
Water
The renal corpuscle functions to filter __________________.
water
blood plasma
urine
____________________are specialized epithelial cells of the distal convoluted tubule. These cells sense sodium chloride concentration in the tubule, which in turn reflects the systemic blood pressure.
Podocytes
Juxtaglomerular cells
Mesangial cells
Macula densa
____________________are smooth muscle cells that regulate blood pressure and the filtration rate of the glomerulus.
Podocytes
Juxtaglomerular cells
Mesangial cells
Macula densa
Which part of the renal tubule reabsorbs ions, water, and nutrients?
Proximal convoluted tubule
Loop of Henle
Distal convoluted tubule
Collecting duct
Which part of the renal tubule selectively secretes and absorbs ions to maintain blood pH and electrolyte balance?
Ascending Loop of Henle
Descending Loop of Henle
Distal convoluted tubule
Collecting duct
_____________________ is the movement of water, small solutes, & ions across a filtration membrane out of the glomerular capillary blood plasma into capsular space.
Net filtration pressure
Colloidal osmotic pressure
Glomelular filtration
Which of the following factors affect GFR (glomerular filtration rate)?
autoregulation
hormonal regulation
autonomic regulation
enzymatic regulation
Which of the following are characteristics of urine?
normal color is somewhat yellow
pH is around 7.5
pH is around 6
It is sterile.
Urine is about
95% water & 5% waste products
50% water & 50% waste products
75% water & 25% waste products
80% water & 20% waste products
Slender tubes that transport urine from the kidney to the urinary bladder
urethra
urinary bladder
ureters
Hollow, muscular sac that temporarily stores urine
urethra
urinary bladder
ureters
Thin-walled tube that carries urine from the urinary bladder to the outside of the body by peristalsis.
urethra
urinary bladder
ureters
The act of urination is known as
voiding
micturition
defecating
