Human Excretion System

Human Excretion System

Human Excretion Organ

The process of removal of waste products from the body is known as excretion. Human excretion organ consist of:

Human excretion organ and product that released

Excretion Organ Product that released Notes

Lungs CO2

H2O

Form of gasses, released to the airForm the fume water, released to air

Kidney Urea Creatine Water

Form of urine

Skin Water Urea Creatine

Form of sweatForm of sweatForm of sweat but just little

Liver Bile Carry to the intestine

Skin or integument

consist of two layers, are

outer layer called epidermis

and inner layer called dermis.

Epidermis consist of several

layers are stratum korneum,

stratum lusidium, stratum

granulosum and stratum

germinativum. Below of

epidermis there are dermis.

This layer found of root hair,

sweat gland, sebasea gland,

blood vessel and nerve fiber.

Look the beside picture.

Skin

Function of Skin

Skin include excretion organ because the

ability to produce of sweat. The other function

of skin are protect toward physic damage cause

mechanic touch, heat, light, germ, and chemical

substance; regulate of body temperature;

prevent dehidrate; and receive of stimulate from

outer.

Kidney

Human kidney has form like

bean with long about 10 cm,

red color, pair number, andplace in the dorsal part ofthe body wall beside leftand right backbone. Crosssection of kidney showingthree area include cortex(outer part), medula

(kidneymarrow) and pelvis renalis(kidney cavity).

Nephron is the filtering units of the kidneys. There are approximately one million nephrons in each kidney. The nephrons are located within the cortex and medulla of each kidney. Each nephrons consists of the following parts: 1) glomerulus ; 2) Bowman’s capsule ; 3) proximal tubule ; 4) loop of Henle ; 5) distal tubule ; 6) collecting duct.

In the kidney happen forming process of urine, are:Filtration of waste product metabolism by bowman’s capsule.Reabsorption of product that still utilize for the body. Thisprocesshappen in the contortus proximal tubule until loop of henle.Augmentation, release of waste product , this process happen in thecontortus distal tubule until colectifus tubule.

Process Place Product Substances

that processed

Filtration Glomerulus Primer urine

(filtrate

glomerulus)

Filtrated: blood

cells, protein

plasm

Reabsorption Proximal

tubule

Sekunder

urine(filtrate

tubule)

Reabsorb:

glucose, amino

acid, organic

ions, water

Loopf of

henle

Reabsorb:

natrium ion

Distal

tubule

Reabsorb:

water

Augmentatio

n

Distal

tubule

Urine Added: ions H+,

urea, ions K+,

kreatinin

The function of kidney

Liver

Liver is “ the bigger gland” that found in the

human body. Place in the abdomen cavity right beside.

Reddish color with weight 2 kg at the adult people.

Liver divide become two lobes, left and right lobes. The function of liver

• Store of sugar in the forming of

glicogen

• As place expose and forming of protein

• Offer of toxin that joint in the forming

and expose red blood cell

• Place of forming and expose red blood

cell

LungsLungs found in the humanof beside left and rightchest cavity that protected by

costa bone. Lungs consist of two part, right lungs that has three lobes and left lungs has two lobes. Actualy, lungs is grouping of alveolus bulb that covered by membrane that called pleura membrane.

The function of lungs Lungs is important organ for

human living because without lungs human can not live. In the excretion system, lungs has function to release carbondioxyde (CO2) and water (H20).

Conclusion............

The process of removal of waste products from the body is known as excretion. Human excretion organ consist of: Liver Bile Skin Sweat Kidney Urine Lungs CO2 and H2OIn the kidney happen forming process of urine, are:Filtration of waste product metabolism by bowman’s capsule.Reabsorption of product that still utilize for the body. Thisprocesshappen in the contortus proximal tubule until loop of henle.Augmentation, release of waste product , this process happen in the contortus distal tubule until colectifus tubule.

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