How is the tissue of the kidneys structurally modified to aid in filtration?
It has tubules and is porous
B. What is important functionally about transitional epithelium?
It allows for stretching. Transitional epithelium contains cells that are flattened and cells that are cuboidal; hence the name "transitional". You can find transitional epithelium in the bladder and in the first expansion of the ureters as they leave the kidneys (called a calyx).
C. What is the function of the ureter? How does its structure support this function?
Covey urine from kidneys to bladder Enter base of bladder through posterior wall Strength and frequency of muscle contractions change with amount of urine present
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Regulate blood pressure and kidney function. Producing erythropoeitin. Metabolizing vitamin D to its active form.
The kidney has evolved to maintain many homeostatic functions, including:
1. Ion balance: This includes [Na+], [K+], macronutrients, etc.
2. Osmotic balance: Controlling volume of urine produced.
3. Blood pressure: Controlling blood volume, over the long term regulates blood pressure.
4. pH balance: Controlling secretion & absorption of H+ & HNO3-
5. Excretion: The removal of toxic water insoluble compounds from the body
6. Hormones: Hormone production and regulation
Kidneys must process tremendous amounts of blood, which may be up to 4 liters of blood per kilogram every minute in humans. The functional unit of the kidney is the nephron, comprised of the renal tubule and associated vasculature. Major kidney structures are described below.
C. Name some ways in which the body excretes waste.
Urinary-Kidney- Nitrogen compounds, toxins, water, electrolytes.
Integumentary-Skin-sweat glands- Nitrogen compounds, Electrolytes, water.
Respiratory-Lung-Carbon dioxide, Water.
Digestive- Intestine- Digestive wastes, Bile pigments, Salts of heavy metals.
D. What is a nephron and what does it do? Nephrons are the basic structural and functional unit of the kidney. The shape of the nephron is unusual, unmistakable and uniquely suited to its function of blood plasma processing and urine formation. Each
2. Name the structure that is a double fold of peritoneum and holds the colon to the abdominal wall.
The job of a kidney is to filter the blood and get rid of waste products; it also balances levels of electrolyte in the body, it controlling blood pressure, and stimulates the production of red blood cells. Your kidneys filter wastes and excess fluids from your blood, which then exit your body
The function of ureters is to enter the urinary bladder at an angle to help prevent any back flow (reflux) of urine back into the ureter. The ureter connects the kidney to the urinary bladder and urine is drained from the kidney and stored in the bladder it’s a passage through which urine passes from kidneys to the urinary bladder.
Epithelial are the lining of internal and external surfaces and body cavities, including tubes/channels (ducts) carrying secretions from glands. Epithelial tissues can be made of several layers of cells (called compound epithelia), or a single layer known as simple epithelia. The lowest layer of cells is attached to the basement membrane for support and connection. Part of the basement
Consequently, the efferent arteriole, which filters blood away from the glomerulus, is tinier in diameter than the afferent arteriole, which carries blood into each glomerulus. This puts blood under high pressure in the glomerulus; thus it forces tiny molecules and liquid out of the capillary and into the Bowman’s capsule. Soon afterwards, the tiny and liquid molecules cross the epithelium of the Bowman’s capsule, the basement membrane and capillary wall in order to get into the Bowman’s capsule and to arrive in the nephron tubules. The consequence of this is that the filtrate (the tiny and liquid molecules) pass along the remainder of the nephron and helpful substances are reabsorbed along the route. Last of all, “the filtrate flows through the collecting duct and passes out of the kidney along the ureter” as mentioned by (Parson’s, R: p128).
C. What is the function of the ureter? How does the structure support this function?
1.What are some of the advantages and disadvantages of the current health care system in the United States?
Subpoint- Helps to level out the uric acid levels and to increase glutathione, and helps with the oxidate stress.
1. What specific part of the kidney does the dialysis tubing represent? What is the function of this part?
Transitional epithelium is also composed of several layers but is constructive of pear shaped cells instead. This type of tissue is stretchy, meaning it can contract and expand. It is usually found lining the urinary bladder as it allows for stretching as the bladder fills up.
The renal system also known as the urinary systems purpose is to eliminate wastes from the body, regulate blood pressure, and regulate blood pH.
In the human body, there are systems that provide different functions and help the body to operate more efficiently. The urinary system is one in particular designed to help the body remain free of excess that we no longer need. “The urinary tract is the drainage system used for removing wastes and extra water. The urinary tract includes two kidneys, two ureters, a bladder, and a urethra. The kidneys are a pair of “bean-shaped” organs, each about the size of a fist. The kidneys are located below the ribs, one on each side of the spine, towards the middle of the back.” (NIDDK, 2013) Every several minutes, your kidneys filter around three ounces of blood, also then removing wastes and extra water. That extra water and
The renal system in the body pertains to the kidneys. The kidneys are the eliminators of waste in the body and collects the ions and elements that that body needs. There are two kidneys, one on each side of the middle to lower back. At
There is a pair of kidneys in the human body. They are situated towards the back of the body under the ribs, just at the level of the waist where one on either side of the body. Each kidney is composed of about one million units which are called nephrons and each nephron consists of two parts: a filter which is called the glomerulus and a tubule leading out from the nephron (Cameron 1999). According to Marshall and Bangert (2008) the kidneys have three major functions. Firstly, the kidneys are excretion of waste from plasma in the blood. The second function is that, they maintain of extracellular fluid volume and composition. Lastly, the kidneys have a role in hormone synthesis.