BIOLOGY

Human’s excretion system

a. Process of spending the rest of the substances in the human body can be divided into three kinds, namely:

1. Defecation: the process of spending the leftovers called feces and excreted through the anus.

2. Excretion: expenditures materials useless derived from metabolic waste or excess material of a cell or an organism (Sumanto, 1996: 102).

3. Secretion: the expenditure by the cell sap and glands. Issued sap is still useful for processes in the body physiology. The sap usually contains enzymes.

b. Human’s excretion organs

Disposal of substances that are not useful in the body called the organs of excretion. Excretion organs include:

  Kidney

 Skin

  Liver

 Lungs

c. Excretion system function

Dispose of waste products of metabolism

•  Carbon dioxide (CO2) - Lungs
•          T Toxins, Waste nitrogen - Kidney
•          Medicine - Kidney
•    Sweat - Leather
•    Bile - Heart

d. Renal - urinary system function

        Throw away metabolic waste:

•    Waste nitrogen
•    Medications
•    Toxins

 Set:

•    The water balance in the body
•    The content of electrolyte
•    Acid-Base fluid blood
•    Blood Pressure
•    Production of red blood cells
•    Activation of vitamin D

e. anatomy of kidney

•  kidney ca psule
•   Renal cortex - the area outside
•   Renal medulla - the area in
•   Renal Pelvis - collecting ducts

f. the process of urine formation 

Urine is formed through 3 stages:

1. Filtration

2. reabsorption

3. Secretion / Augmentation

urinary system 

g. kidney’s disorders:

1. Kidney stones: the stones of calcium deposits in the renal pelvis and salt.

Cause: often hold urine and less drinking.

2. Diabetes Mellitus: In urine containing glucose. This is because of the sugar levels in the blood are high.

3. Diabetes insipidus: Frequent bowel movements are great (up to 20-30 times). It Occurs due to lack of ADH hormone.

kidney stones: :kaget:

 how important the kidney for us :bloon:

How come?? :kaget: