ch. 24 - urinary system
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19 Terms
what are the 3 nitrogenous compounds created as waste products?
urea
uric acid
creatinine
urea
the main nitrogen containing waste excreted in urine produced from the breakdown of proteins
uric acid
produced from the breakdown of purines (nucleobases that make up the building blocks of DNA and RNA). too much uric acid in the blood and body will cause gout and kidney stones
creatinine
chemical waste product produced from the normal wear and tear of muscles of the body
whats the function of the renal capsule ?
maintains the kidneys shape and forms barrier that can inhibit the spread of infection from surrounding organs
how many lobes are there in each kidney ?
5-11
the renal pelvis can be divided into the …
major and minor calyces / calyx
the minor calices enclose the
papillae of the pyramids
the renal pyramids do what?
contain urine collecting tubules and ducts where the ducts drip urine into the minor calyx
the renal arteries branch from the …
abdominal aorta
the renal artery approaches the kidney and divides into the …
interlobar arteries
the interlobar arteries branch into the
arcuate arteries which arch over the bases of the renal pyramids
radiating outward from the arcuate arteries and supplying the cortical tissue with blood are small…
cortical radiate arteries
what are the functional units of the kidney
nephrons
the glomerulus and the convoluted tubules are located in which part of the kidney?
the cortex
glomerulus
a cluster of capillaries where waste products are filtered from the blood
path of blood flow through renal blood vessels
aorta
renal artery
segmental artery
interlobar artery
arcuate artery
cortical radiate artery
afferent glomerular arteriole
glomerulues
efferent glomerular arteriole
pertibular capillaries and vasa recta
blood leaves the renal cortex and drains into the …
cortical radiate veins
path of blood flow through renal veins out the kidneys
cortical radiate veins
arcuate vein
interlobar vein
renal vein
inferior vena cava