Answer:
There are air filters to purify the air and water filters to clean the water. Well, the kidneys are like a filtering system, too. They contain nephrons, which filter waste from the blood in two stages. First, nephrons take waste as well as needed materials out of blood. Then, the materials the body needs (like water and glucose) are returned to the blood and wastes are eliminated from the body. This is one way the kidneys maintain homeostasis. The kidneys also regulate the amount of water in the body. The amount of water the kidneys return to the blood depends on the conditions inside and outside of the body. This is another way the excretory system maintains homeostasis. For example, you will make more urine on a cool day when you have drunk a lot of water than you will on a hot day when you've hardly had anything to drink.
(I answered a question similar to this some time ago so you might also find it there.) Hope It Helps!
Answer 58 because ei dknt know
Explanation:
Targeting training needs is formally referred to as developing a
tailored training programme. It requires careful pre-assesment and
planning to insure an effective result for all those involved in the
training scheme.
I'm not going to fully write out <span>3-4 paragraphs but I will give you some information to start out with :) I greatly enjoy doing research and writing about the things I have learned.
Arteries:
Arteries are </span>any of the muscular-walled tubes forming part of the circulation system by which blood (mainly that which has been oxygenated) is conveyed from the heart to all parts of the body. <span> Each artery is a muscular tube lined by smooth tissue and has three layers. These are the three layers and their purpose.
*The i</span>ntima-T<span>he inner layer lined by a smooth tissue called endothelium
</span>*The media- A<span> layer of muscle that lets arteries handle the high pressures from the heart
*</span>The adventitia-Connective tissue anchoring arteries to nearby tissues
Veins<span> are </span>blood vessels<span> that carry </span>blood<span> toward the </span>heart<span>. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the </span>pulmonary<span> and </span>umbilical veins<span>, both of which carry oxygenated blood to the heart. In contrast to veins, </span>arteries<span> carry blood away from the heart.
</span>Veins are classified in a number of ways, including superficial vs. deep, pulmonary vs. systemic, and large vs. small.
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*Superficial veins are those closer to the surface of the body, and have no corresponding arteries.
</span><span>*Deep veins are deeper in the body and have corresponding arteries.
</span><span>*Perforator veins drain from the superficial to the deep veins. These are usually referred to in the lower limbs and feet.
</span><span>*Communicating veins are veins that directly connect superficial veins to deep veins.
*P</span>ulmonary veins<span> are a set of veins that deliver oxygenated blood from the </span>lungs<span> to the heart.
*</span><span>Systemic veins drain the tissues of the body and deliver deoxygenated blood to the heart.
I hoped this helped and gave you some useful information. Good luck, I hope you do well on your assignment :) ~Sadie
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