Human Body - Excretory System
Transcript of Human Body - Excretory System
THE EXCRETORY SYSTEM
Vocabulary
Aorta - is the main artery in the human body connecting to the heart and running
down the abdomenActive transport - is the movement of molecules across the cell membrane
Adrenal glands - produce hormonal nes
Bladder- a sac in humans in which urine is collected for extraction
Bowmans capsule - extracts wastes, excess salt and water in blood
Exception- expelling waste matter
EXCEPTION- EXPELLING WASTE MATTER
FILTRATION - THE PROCESS OF FILTERING SOMETHING
KIDNEY - EACH A PAIR OF ORGANS IN THE ABDOMINAL CAVITY
GLOMERULUS - A CLUSTER OF NERVE ENDINGS
Nephron- is the basic structural and functional unit of kidneys
Metabolic waste - left overs from excretory process
Renal artery- two branches of the abdominal atora
Renal veins - are veins drained from the kidney
Urethra - the duct by which urine is conveyed out of the body
Ureter- the duct where urine passes from the kidney to the bladder
Sweat gland - a small gland that secretes sweat situated in the dermis
Renal arteries - supplies blood to kidneys
Organs in the excretory system
Liver GallbladderUrinary bladder UretersUrethaLarge intestine Kidneys SkinLungs
LIVER-THE LIVER ALSO DETOXIFIES CHEMICALS AND METABOLIZES DRUGS. AS IT DOES SO, THE LIVER SECRETES BILE THAT ENDS UP
BACK IN THE INTESTINES. THE LIVER ALSO MAKES PROTEINS IMPORTANT FOR BLOOD CLOTTING AND OTHER FUNCTIONS.
GALLBLADDER - DISCHARGES INTO THE SMALL INTESTINE TO GET RID OF FAT ,ETHANOL AND OTHER ACIDS
URINARY BLADDER - THE WASTE FLUID THAT IS CREATED IN THE LIBBER AND COLLECTED IN THE KIDNEY IS TRANSFERRED TO THE
URINARY BLADDER
URETERS - A CARRIER OF SEMEN AS WELL AS URINE FOR THEIR ULTIMATE DISCHARGE OUT OF THE BODY
LARGE INTESTINE - A STORAGE ORGAN FIR EXCRETORY PRODUCTS
THE KIDNEYS
• The kidneys are two bean shaped organs each about the size of a fist they are just below the rib cage.
• The kidneys are important because they keep composition of make up of the blood stable
• * Prevent the build up of wastes and extra fluid in the body
• * Regulate blood pressure
• Help bones stay strong
• * Make red blood cells
EACH KIDNEY IS MADE UP OF ABOUT A MILLION FILTERING UNITS CALLED NEPHRONS AND EACH NEPHRON FILTERS A SMALL AMOUNT OF BLOOD
The kidneys
KIDNEY DISEASE: IGAKidney disease
One major and common kidney disorder (disease) is IgA nephropathy
It is a kidney disorder that occurs when a protein that helps the body fight infection settles in the kidney
Many people with igA leak blood in their urine
The hands and feet can swell
About 25% percent of adults with igA develop kidney failure
Symptom of kidney failure are
Swelling in hands and feet
Nausea
Fatigue
Headaches and sleep problems
In early stages of igA neuropathy have no symptoms it can be silent for years The first sign is blood in the urine The blood might occur during a cold sore throat or other infections
Scientist do not know what causes igA neropathy
CURES FOR KIDNEY DISEASE
Kidney diseases can not be cured when the kidneys are damaged they can not be repaired treatment focuses on slowing the disease and preventing complications * One complication is high blood pressure (hypertension) which damages the kidneys * With kidney disease you can lose proteins in urine
THE LIVER
Liver - The liver also detoxifies chemicals and metabolizes drugs. As it does so, the liver secretes bile that ends up back in the intestines. The liver also makes proteins important for blood clotting and other functions.
Alcoholic liver disease.
The alcoholic liver disease is a hepatic manifestation of alcohol overconsumption including fatty liver disease alcoholic hepatitis and cirrhosis. Analogous Terms such as drug induced or toxic liver disease are also used to refer to disorders caused by various drugs.
Cures for alcoholic liver disease
There is no known cure for alcoholic liver disease.