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Excretion
Honor Bio II Melton Respiration Flash Cards
64
Biology
Undergraduate 1
05/01/2011

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Term
What are the six byproducts of metabolism?
Definition
Ammonia,Urea,Uric Acid,Creatine,Bile Pigments,Co2
Term
What excretes Co2
Definition
Lungs during respiration
Term
Where do bile pigments come from?
Definition
results from the breakdown of hemoglobin in bilirubin and biliverdin
Term
Creatine is the result of what?
Definition
muscles using high phosphate stored in creatine
Term
Urea is produced where and why?
Definition
Urea is produced in the liver when ammonia is altered
Term
Uric Acid is the result of what?
Definition
the breaking down of nucleotides
Term
Ammonia is the result of what?
Definition
The deamination of amino acids
Term
Why are ions excreted?
Definition
To maintain the proper pH,osmotic pressure and electrolyte balance.
Term
What are some example of Ions
Definition
Na,K,Ca,Fe
Term
Where are the sweat glands located?
Definition
The skin
Term
The sweat glands excrete what?
Definition
perspiration
Term
Perspiration contains what?
Definition
H2O, Salt and urea
Term
What is the purpose of sweating
Definition
To cool off;heat is lost during perspiration
Term
Bile comes from the breakdown of what?
Definition
hemoglobin
Term
Bile passes into what organ?
Definition
intestine
Term
Lungs expiration does what for the body?
Definition
Removes Co2 and water vapor
Term
Iron and Calcium are excreted by the cells of what organ
Definition
intestine(passes out in wastes
Term
Defaction(define)
Definition
refers to rejects of the body substances that have never been a part of the body
Term
What do the kindeys excrete?
Definition
urine
Term
What are four parts of the urinary system?
Definition
kidneys,ureters,urinary bladder,urethra
Term
Kineys(function)
Definition
removes wastes from blood
Term
Ureters(function)
Definition
muscular tubes which convey the urine to bladder
Term
Urinary Bladder(function)
Definition
urine storage
Term
Urethra(function)
Definition
leads from bladder to outside
Term
What is the process for urination
Definition
Bladder fills=>strech receptors send nerve impulses=>spinal cord=>bladder contracts=>sphincters relax=>urination occurs
Term
The Kindeys have three macroscopic parts. What are they?
Definition
Outer cortex,medulla,pelvis
Term
The kindeys have four microscopic parts. What are they
Definition
Bowman's Capsule,Convuluted Tubule,Loop of Henle,Collecting Ducts
Term
The microscopic parts of the kindey are collectively called the _____-
Definition
nephron
Term
Urine formation occurs in a process called ______-
Definition
filtration
Term
Water, nutrients and waste move from the ______ to the inside of ______ Capsule
Definition
glomerulus;Bowman's
Term
During filtration molecules remain in the ______
Definition
blood
Term
during filtration small molcules such as glucose and urea enter the ______
Definition
tubule
Term
More ADH= what?
Definition
Less Urine, increased reabsorbtion
Term
Less ADH=what?
Definition
More Urine, Less Reabsorbtion
Term
Uremia(define)
Definition
urea in blood
Term
What are the causes of Uremia?
Definition
kidney failure,swelling
Term
What are the symptoms of renal disease
Definition
WBC,RBC, in urine or urinary tract
Term
What is the cause of renal disease
Definition
under attack by bacteria in bladder
Term
Diabetes Mellitas(define)
Definition
Cells of pancreas do not secrete insulin that promotes storgage of glycogen
Term
What is the symptom of Diabetes?
Definition
Glucose in the urine
Term
What is the cause of Diabetes
Definition
Liver does not store glycogen, thus filtrate is high in glucose
Term
Urianlysis
Definition
Examination of Urine
Term
H+ and ammonia ions are excreted and Na and bicarbonate are reabsorbed for what reason
Definition
to maintain pH
Term
If the blood is to acidic what exits
Definition
H+
Term
If blood is too basic what happens
Definition
Less H+ excreted
Term
If too alkaline what happens
Definition
Fewer H+ excreted and fewer Na+and Co3 reabsorbed
Term
ADH= what
Definition
antidiuretic
Term
Blood volume is controlled by what?
Definition
amount of H20 in blood
Term
AHD is excreted by what?
Definition
posterior lobe of pituitary gland
Term
ADH controls what?
Definition
amount of reabsorbtion of H20
Term
What occurs in the distal convuluted tubule?
Definition
Na and H20 are reabsorbed
Term
In the distal convuluted tubule Na is ______ reabsorbed while H20 is _____ reabsorbed
Definition
actively;passivly
Term
What occurs in the collecting duct?
Definition
h20 diffuses out
Term
H20 is reabsorbed throughout most of the urinary system. Where is most of it reabsorbed?
Definition
loop of Henle
Term
Secretion(define)
Definition
wastes are actively secreted into the distal convoluted tubule
Term
What is the result of secretion?
Definition
small H20 loss, wastes are removed and kidneys promote homeostatsis
Term
Nutrients and salt are reabsorbed from the _____ _____ _____ into the blood
Definition
proximal convoluted tubule
Term
The blood supply of the urinary system is as follows?
Definition
Aorta=>renal artery=>small arteries=>Afferent Arteriole=>Glomerulus=>Efferent Artierol=>Peritubular capillary network=>Venule=>Vein=>renal vein=>IVC
Term
Proximal convoluted tubule provides for what two kinds of transport
Definition
active;passive
Term
Cl passively follows active transport Na and H20 in the _____ _____ _____
Definition
proximal convoluted tubule
Term
The pertitubular capillary network surrounds convulotions, collecting duct, and the loop of Henle. what is its function
Definition
It provides nourishment
Term
Whole blood enters in _______ arteriole going to the _____ capsule where filtration occurs
Definition
afferent;Bowman's
Term
What are the Glomerular filtatrates;
Definition
H20,nitrogen wastes,food, salt,ions
Term
In the Glomerulus formed elements and large proteins remain in the _____ _____. They leave by the ______ arteriole
Definition
blood vessel;efferent
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