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Where are the kidneys located in the human body?

What is the function of the kidneys in the body?

What is the size of each kidney?

What is the path that blood takes to reach the kidneys?

What is the purpose of the bladder in the body?

How many kidneys do humans have?

What is the name of the vessel that carries blood from the heart to the kidneys?

What is the term for the collection of waste products that the body wants to get rid of?

What does the artery that goes to the kidney contain?

What is the function of the kidneys in terms of blood pressure?

What happens to the oxygen in the arterial blood as it flows through the kidney?

What is the purpose of the capillary beds in the kidney?

What is the end result of the kidney's function?

What is unique about the kidney's structure?

What is an example of a nutrient that the kidney helps to maintain?

What happens to the waste products in the arterial blood as they flow through the kidney?

What is the purpose of the vein in the kidney?

Why is it important for the kidney to maintain the right amount of nutrients in the body?

Kidneys are located near the belly button, about the size of a fist, and there are two of them.
They sit closer to the back, not in the front, and receive blood from the heart.

The heart pumps blood throughout the body, including to the kidneys, which filter the blood and release urine (waste products).
The kidneys filter the blood and release urine, which collects in the bladder until it's time to go to the bathroom.
Arteries hold oxygenated blood that includes nutrients (e.g., electrolytes, proteins, amino acids, glucose) and waste products (e.g., urea, toxic compounds).

The kidneys help maintain blood pressure by removing excess electrolytes (e.g., sodium) that can cause high blood pressure.
The kidneys ensure the body doesn't build up too much of a good thing (e.g., nutrients), which can become waste products.
The kidneys receive oxygenated blood from the artery, filter out waste products, and return the blood to the vein, keeping nutrients in the process.
The kidneys need oxygen to function properly and will use some of the oxygen from the arterial blood.

The kidneys have two capillary beds that connect the artery and vein.
The first capillary bed is called the vasa recta, which mainly delivers oxygen to the kidneys.
The second capillary bed is called peritubular capillaries, which are mainly responsible for collecting nutrients that the kidneys will filter.
The capillary beds work together to deliver oxygen to the kidney tissue and recollect nutrients for the body.