Excre Flashcards
IS TO EXCRETE (GET RID OF) WASTES THAT ARE NOT HELPFUL TO THE BODY.
REMOVAL OF WASTE
IT IS FATAL BECAUSE WASTE WILL SERVE AS THE POISON
Excretory
System
WASTES SUCH AS EXCESS WATER, SALT, UREA AND URIC ACID ARE REMOVED FROM THE BODY IN SWEAT
Skin
EXCESS CARBON DIOXIDE WASTE IS REMOVED FROM THE BODY WHEN WE EXHALE. (CO2)
Lungs
DETOXIFIES BLOOD
FILTERS BACTERIA, ALCOHOL, DRUGS, TOXIC SUBSTANCES
CHANGES THEM INTO INACTIVE
OR LESS TOXIC FORMS.
Excretes Bile
Contains:
Worn-out RBC
Bile salts
Cholesterol
Liver
REMOVES SOLID, UNDIGESTED FOOD FROM THE BODY AFTER IT PASSES THROUGH THE DIGESTIVE SYSTEM.
WASTE IS STORED IN RECTUM UNTIL IT IS EXCRETED FROM THE BODY AS SOLID WASTE.
Large Intestine
ELIMINATES NITROGENOUS OR LIQUID WASTE OF THE BODY IN THE FORM OF URINE (URINATION, MICTURITION, OR VOIDING)
MAINTAINS FLUID AND ELECTROLYTE BALANCE
REGULATES THE COMPOSITION AND
VOLUME OF THE BLOOD AND REGULATES BLOOD PRESSURE.
Urinary System
BEAN – SHAPED STRUCTURE LYING AGAINST THE POSTERIOR ABDOMINAL WALL AT THE LEVEL OF THE LAST THORACIC AND FIRST THREE LUMBAR VERTEBRAE
Kidney
OUTER LAYER BLOOD IS FILTERED TO REMOVE WASTE AND EXCESS SUBSTANCES
Cortex
MIDDLE LAYER MADE UP OF TUBES CALLED COLLECTING DUCTS THAT CARRY THE FILTERED SUBSTANCES (FILTRATE) TO THE INNERMOST LAYER OF THE KIDNEY
Medulla
CAVITY THAT COLLECTS THE FILTRATE AND CONNECTS THE KIDNEY TO THE URETER WHICH EXITS THE KIDNEY
Pelvis
WASTE FILTERING UNIT OF THE KIDNEY FOUND IN THE CORTEX AND THE MEDULLA.
Nephron
FINAL WASTE FLUID EXCRETED.
MADE UP OF WATER, UREA AND VARIOUS SALTS.
Urine
1.5 LITERS PER DAY AVERAGE
Water
WASTE PRODUCT OF PROTEIN AND AMINO ACID METABOLISM
Urea
WASTE PRODUCT OF MUSCLE METABOLISM OF PURINES BY LIVER
Uric Acid
