Proyect of human urinary system


Functions of the organs that we used to make the model of an excretory system that we will make with trash.

Kidneys: They are two bean-shaped organs that extract waste blood, balance body fluids, from urine.

Ureter:  Is a tube that carries urine from the kidney to the urinary bladder. In the body you can find to ureters, one attached to each kidney. The superior half of the ureter is located in the abdomen and the inferior part is located in the pelvic zone.

Bladder: The urinary bladder is a muscular sac in the pelvis, just above and behind the pubic bone. When empty, the bladder is about the size and shape of a pear.

Urethra: The urethra is the passageway between the bladder and the external part of the body, which allows urine to be excreted from the body.

Renal veins: The renal veins carry deoxygenated blood away from the kidneys. Renal veins separate into two parts as the blood vessel enters the left and right kidney,these veins branch off the inferior vena cava, one of the major blood vessels in the human body.

Renal arteries: The renal arteries carrie mineral rich, oxygenated blood from the heart to the kidneys for nutrition and cellular respiration.

Inferior vena cava: The inferior vena cava is a large vein that carries deoxygenated blood from the lower body to the heart. Deoxygenated blood means most of the oxygen has been removed by tissues, and therefore the blood is darker and without oxygen. This blood comes from the legs and the lower torso of the body.

Abdominal aorta: The abdominal aorta is the one who provides blood to the organs and tissues of the abdomen, pelvis, and legs.

This is the project that we did with my partner Gonzalo Irazusta. Before showing the pictures of the project we will tell you how the process was. First we search in our homes for some material. Then we join in my house and we did the project with the material we found. Later on, we searched for information in internet and in the book for the function of each organ.

That was the process and this is the project finished:


States of Matter Basics by Bautista Buljevich and Tomás Braun


Using the simulation, try to change the phase of water. For example, change liquid water to solid or gas.

Resultado de imagen para differences and similarities between solids liquids and gases on a molecular level

  • Gas: This state is present when water reaches the boiling point (100 Cº), water starts evaporating. When this happens, water molecules start to separate from each other and disperse, constantly moving
  • Liquid: This state is present when water is in a warm temperature. As it is neither too hot nor too cold, it will not disperse in the air or be all too close together. However, it will have the force to stay together.
  • Solid: This state is present when water is in a too cold temperature. When this occurs, water molecules are too close together, always in a fixed position, therefore, there is a little space between them and are not able to move from their place.