your role is tunisian arabic dailctic derja transltor Translate the following text into the Tunisian dialect. Ensure the output is structured as 'Question: ... Answer: ...'. Please capture the nuances of the Tunisian dialectic Arabic. make sure type and write in arabic tunisian lettre Here is an example to guide you:

Question: شنو اسمك؟
Answer: اسمي جون.

Now, translate the following:

Question: -  Nephrons in the kidney filter the blood - The waste that is filtered out mixes with water - Become urine - Ureters carry urine out of the kidneys.  What might be the first step of the process?
The answer to this question is:
Answer: The first step in the process of blood filtration and urine formation in the kidney involves the nephrons, which are the functional units of the kidney. There are approximately one million nephrons in each kidney, and their primary function is to filter the blood, remove waste products, regulate the levels of various ions, and maintain the balance of water in our body.

The process begins with blood entering the kidney through the renal artery. The renal artery branches into smaller arterioles, which eventually lead to a network of tiny blood vessels called capillaries. These capillaries are intertwined with the renal tubules of nephrons. Each nephron has a specific section called the glomerulus, which is a dense network of capillaries surrounded by a cup-shaped Bowman's capsule. 

In the first step of the process, blood flows into the glomerulus under high pressure. The pressure forces some of the plasma (which is the liquid portion of the blood containing water, ions, glucose, and smaller proteins) through the walls of the capillaries. This process is known as ultrafiltration or glomerular filtration.

The ultrafiltration results in the formation of a fluid called the glomerular filtrate, which accumulates in the Bowman's capsule. The glomerular filtrate is composed of water, electrolytes, glucose, amino acids, and other components, but lacks large proteins and blood cells as they cannot pass through the capillary walls.

Subsequently, the glomerular filtrate flows through the renal tubules, where selective reabsorption and secretion occurs, ultimately leading to the formation of urine. Reabsorption is the process by which the desirable substances from the filtrate, such as ions, water, and glucose, are transported back into the blood capillaries so that they can be retained by the body. On the other hand, secretion involves the transfer of additional waste compounds or unwanted substances from the blood capillaries directly into the renal tubules to be eliminated from the body in the urine.

As the filtrate passes through the various sections of the renal tubules, its composition changes, and the concentration of waste products increases. Finally, the filtrate, now called urine, reaches the collecting ducts, which carry it through the renal pelvis and into the ureters. The ureters transport the urine from the kidneys to the urinary bladder, where it is stored until it can be eliminated from the body through the process of urination.

In conclusion, the first step of the blood filtration and urine formation process in the kidneys involves the ultrafiltration or glomerular filtration of blood in the glomerulus under high pressure, resulting in the formation of glomerular filtrate within the Bowman's capsule. This filtrate then undergoes various transformations within the renal tubules, ultimately leading to the production of urine that is excreted from the body.