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The Urinary System
Terms in this set (67)
in what space are the kidneys located ?
the retroperitoneal space
behind the peritoneum
retroperitoneal means ?
The renal artery, vein and ureter connect to the kidney at what area?
what is the nephron?
the microscopic functional unit of the kidney
where is the loop of Henley located?
the renal medulla
what is the glomerular (bowman's) capsule?
the bulb at the end of the nephron
What is the glomerulus?
the cluster of capillaries that the bowman's capsule surrounds.
What is the renal cortex?
the outer portion of the kidney
What is the name of the area that contains many tubes in which urine is formed and collected?
What are the cone shaped structures that the tubes of the renal medulla form?
the renal pyramids
funnel shaped basin forming the upper end of the ureter
What structures does the urine go through to reach the outside of the body?
kidney, ureter, bladder and urethra
what are the functions of the urinary system?
excretion, maintain water balance, regulate ph, regulate bp, regulate red blood cell production
what waste product of amino acid metabolism is transported by the blood from the liver to the kidneys for excretion?
what systems of the body eliminate waste?
digestive, urinary, integumentary and pulmonary
control of what voluntary structure gives us the ability to delay urination?
external urethral sphincter
what process allows diffusible materials to pass from the blood into the nephrons?
what process moves useful substances back into the blood while keeping waste products in the nephrons to be eliminated in the urine?
what process moves additional substances from the blood into the nephrons for elimination?
what is the function of the bladder?
storage of urine
what is the function of the ureters?
to carry urine from the kidney to the bladder
where is the bowman's capsule located?
the proximal end of the nephron
what are the medical terms for expelling urine from the bladder?
micturition or urination
what is the name of the involuntary sphincter in the urethra?
the internal urethral sphincter
what substances does urine usually contain?
nitrogenous waste products, electrolytes and pigment
which substances are abnormal contents of urine?
glucose, albumin, blood, ketones, WBC's and casts
what hormone influences the amount of water that is eliminated with the urine?
what is renin?
an enzyme produced by the renal cells when blood pressure falls to low for effective filtration action
what is angiotensin ?
protein in the blood which is activated by renin
what does angiotensin do?
constriction of vessels, raises BP, stimulates the release of aldosterone from the adrenal cortex.
what is the source of antidiuretic hormone
made in the hypothalamus, released In the pituitary when blood becomes too dilute
what is DCT
distal convoluted tubule
what structure does the DCT empty into?
what is the name of the protective layer that covers the kidney?
major artery that supplies the kidney
what is the name of the membranous tissue that encloses the kidneys?
what is the name of the small vessel that supplies the nephrons with blood?
what does bowman's capsule contain?
the network of capillaries known as the glomerulus
what is the name of the small vessel that carries blood away from the glomerulus?
external urethral sphincter
sphincter the allows voluntary control of urination
where does the blood go after it leaves the efferent arteriole?
the peritubular capillaries
what is the name of the hormone produced by the kidneys that increase RBC production by the red bone marrow?
what forms the lining of the urinary tract
what body process does the kidney depend on to be able to filter the blood?
the urinary meatus
how does urine leave the bladder
what substance in the blood is moved to balance PH?
where does urine formation begin?
what is the inner portion of the kidney called
what is the medical term for blood in the urine?
structure that connects the kidney to the bladder
what is the definition of pyuria?
pus in the urine
what does the term pyelonephritis mean?
inflammation of the renal pelvis and tissues of the kidney
what structure allows the bladder to expand when it fills with urine?
the portion of the nephron that dips into the renal medulla
loop of henley
where are the cells of the juxtaglomerular apparatus located?
in the distal convoluted tubule and the afferent arteriole
the collecting duct is what part of the nephrons?
the most distal part
What is the medical term for the external part of the urethrea?
Inflammation of the bladder is called what?
What is the name of the triangular region in the floor of the bladder?
What gives the bladder stability?
What is the name of cuplike extensions of the renal pelvis that collects urine?
What is the plural of calyx?
what is polyuria?
an unusually large amount of urine
What is the term for scanty amounts of urine?
Term for absence of urine?
where are the kidneys located?
What is the term for no urine voided. urine is made, there is urine in the bladder but the urine is not expelled?.
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