Digestive & Urinary Systems Test A

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1. The organ shown below is the:

Explanation

The organ shown in the image is the liver. The liver is a large, reddish-brown organ located in the upper right side of the abdomen. It plays a crucial role in various metabolic processes, including detoxification, protein synthesis, and the production of bile. The gallbladder, stomach, and esophagus are also important organs in the digestive system, but they are not depicted in the given image.

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About This Quiz
Digestive & Urinary Systems Test A - Quiz

This quiz, titled 'Digestive & Urinary Systems Test A,' assesses knowledge on key organs and functions within the human digestive and urinary systems. It covers topics such as... see morechemical digestion, waste elimination, and the roles of specific organs and cells, enhancing understanding of human body systems. see less

2. The main job of the kidneys is to:

Explanation

The main job of the kidneys is to filter waste from the blood. The kidneys play a crucial role in maintaining the body's internal balance by filtering out waste products, excess water, and toxins from the blood. They help regulate the levels of various substances in the body, such as electrolytes, pH, and fluid volume. The filtered waste is then excreted as urine, while the cleaned blood is returned to circulation. This process is essential for maintaining overall health and preventing the buildup of harmful substances in the body.

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3. The organ shown below is the:

Explanation

The organ shown in the image is the esophagus. The esophagus is a muscular tube that connects the throat (pharynx) to the stomach. It plays a crucial role in the digestion process by transporting food from the mouth to the stomach through rhythmic contractions called peristalsis. The esophagus is located behind the trachea (windpipe) and is responsible for the propulsion of food through the digestive system.

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4. Dialysis helps kidney patients by:

Explanation

Dialysis helps kidney patients by filtering out waste from the blood. When the kidneys are not functioning properly, waste products and excess fluid can build up in the body, leading to serious health complications. Dialysis is a medical procedure that mimics the function of the kidneys by removing waste, excess fluid, and toxins from the blood. This helps to maintain the balance of electrolytes and fluid levels in the body, preventing further damage and improving overall health.

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5. Which is an example of chemical digestion?

Explanation

The process of acid breaking down proteins in the stomach is an example of chemical digestion. Chemical digestion involves the breakdown of food into smaller molecules through the use of enzymes and other chemicals. In this case, the stomach produces hydrochloric acid and enzymes like pepsin, which help to break down proteins into amino acids. This process is essential for the body to absorb nutrients from food. Chewing food, food churning in the stomach, and the esophagus pushing food down to the stomach are examples of mechanical digestion, which involves the physical breakdown of food.

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6. The organ shown below is the:

Explanation

The organ shown in the image is the bladder. The bladder is a hollow organ located in the lower abdomen that stores urine before it is expelled from the body through the urethra. It is a muscular organ that expands as it fills with urine and contracts to release the urine during urination.

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7. Which of the following secretions comes from the liver?

Explanation

Bile is the correct answer because it is a secretion produced by the liver. Bile is a greenish-yellow fluid that is stored in the gallbladder and released into the small intestine to aid in the digestion and absorption of fats. It helps to emulsify fats, making them easier to break down and absorb. Lipase, nuclease, and amylase are enzymes that are involved in the digestion of lipids, nucleic acids, and carbohydrates respectively, but they are not secretions from the liver.

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8. The duodenum is the end of the small intestine.

Explanation

The duodenum is not the end of the small intestine. It is actually the first part of the small intestine, located immediately after the stomach. It plays a crucial role in the digestion process by receiving partially digested food from the stomach and further breaking it down with the help of enzymes and bile. After the duodenum, the partially digested food continues its journey through the rest of the small intestine, including the jejunum and ileum, before reaching the large intestine.

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9. Parietal cells make ____________, which helps pepsinogen to digest _____________. 

Explanation

Parietal cells in the stomach produce hydrochloric acid, which aids in the digestion of proteins. Hydrochloric acid lowers the pH of the stomach, creating an acidic environment that activates pepsinogen, an inactive enzyme. Pepsinogen is then converted into pepsin, which is responsible for breaking down proteins into smaller peptides. Therefore, hydrochloric acid plays a crucial role in the digestion of proteins in the stomach.

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10. The small projections that increase the surface area of the small intestine for absorption are called:

Explanation

Villi are small projections in the small intestine that increase its surface area for absorption. This increased surface area allows for more efficient absorption of nutrients from digested food. The villi have a finger-like structure and are covered in microvilli, which further increases the surface area. The absorption of nutrients, such as carbohydrates, proteins, and fats, occurs through the villi. Therefore, villi play a crucial role in the process of digestion and nutrient absorption in the small intestine.

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11. If this organ fails, what will happen?

Explanation

If this organ fails, waste will build up in the blood. This is because the organ mentioned is responsible for filtering waste products from the blood and excreting them in the form of urine. When the organ fails, it is unable to perform this function effectively, leading to a buildup of waste in the blood. This can have serious consequences for the body, as the accumulation of toxins and waste products can disrupt normal bodily functions and lead to various health problems.

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12. Urine is filtered out of waste from the large intestine.

Explanation

Urine is not filtered out of waste from the large intestine. The large intestine primarily absorbs water and electrolytes from the remaining indigestible food matter, forming feces. Urine is produced in the kidneys through the filtration of blood, and it contains waste products, excess water, and electrolytes. It is then transported to the bladder for storage and eventually eliminated through the urethra.

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13. A patient complains of pain and discomfort in his upper chest.  He describes the pain as burning and says it gets worse at night when he goes to sleep. Diagnose this patient:

Explanation

The patient's description of the pain as burning and worsening at night when lying down is characteristic of heartburn. Heartburn is a common symptom of gastroesophageal reflux disease (GERD), which occurs when stomach acid flows back into the esophagus. This can cause a burning sensation in the chest, often referred to as heartburn. It is important to note that heartburn is different from peptic ulcers, IBS, and urinary tract infections, as they present with different symptoms and require different treatments.

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14. The part of the small intestine shown here is the:

Explanation

The part of the small intestine shown in the image is the duodenum. This can be determined based on its location, as the duodenum is the first part of the small intestine that receives partially digested food from the stomach. It is also characterized by the presence of the duodenal papilla, which is a small opening where the bile duct and pancreatic duct enter the duodenum.

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15. What would happen if the mucus cells in the stomach were not working properly?

Explanation

If the mucus cells in the stomach were not working properly, the protective layer of mucus that coats the stomach lining would be reduced or absent. This would allow the hydrochloric acid in the stomach to come into direct contact with the stomach lining, leading to erosion and damage. The hydrochloric acid is highly corrosive and can eat away at the stomach lining, causing ulcers and other gastrointestinal issues.

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16. This organ is involved primarily in:

Explanation

The organ involved primarily in absorption is the small intestine. It is responsible for absorbing nutrients from the food we eat into the bloodstream. The small intestine has a large surface area due to its numerous folds and finger-like projections called villi, which increase the absorption capacity. It absorbs nutrients such as carbohydrates, proteins, fats, vitamins, and minerals, which are then transported to the body's cells for energy and other functions.

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17. What do the parietal cells in the stomach make?

Explanation

The parietal cells in the stomach produce hydrochloric acid. This acid plays a crucial role in the digestion process by breaking down food and killing bacteria that may be present in the stomach. It also helps activate pepsinogen, an inactive enzyme produced by the chief cells in the stomach, which then becomes pepsin and aids in the digestion of proteins. Additionally, hydrochloric acid creates an acidic environment in the stomach that is necessary for the absorption of certain nutrients like iron and vitamin B12.

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18. What would be an appropriate treatment for someone with IBS?

Explanation

A high fiber diet would be an appropriate treatment for someone with IBS because it can help regulate bowel movements and reduce symptoms such as constipation or diarrhea. Fiber adds bulk to the stool, making it easier to pass through the digestive system. It can also help alleviate abdominal pain and bloating. Additionally, a high fiber diet promotes overall gut health by providing nourishment to beneficial bacteria in the gut. However, it is important to note that treatment for IBS may vary depending on the individual, and consulting a healthcare professional is recommended for personalized advice.

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19. A patient is brought into the ER because he had been vomiting and his wife thought he was also feeling dizzy and weak. After taking a patient history, you find out that this man has a problem with alcohol. You take a urine sample and it appears to have tiny, foamy bubbles. You tell his wife:

Explanation

Based on the information provided, the patient's history of alcohol problems and the presence of tiny, foamy bubbles in the urine suggest a potential issue with the kidneys. Foamy urine can be a sign of proteinuria, which occurs when the kidneys are not functioning properly and are leaking protein into the urine. This can be indicative of kidney damage or failure. Dialysis is a medical treatment used to filter waste products and excess fluids from the blood when the kidneys are unable to perform this function adequately. Therefore, the correct answer is that the patient's kidneys are failing and he needs dialysis.

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20. What type of organic molecule is mainly digested in the stomach?

Explanation

Proteins are mainly digested in the stomach. The stomach secretes gastric juice, which contains an enzyme called pepsin. Pepsin breaks down proteins into smaller peptides. The acidic environment in the stomach helps to denature the proteins, making them more accessible to the action of pepsin. Once the proteins are broken down into peptides, they are further digested in the small intestine by other enzymes, such as trypsin and chymotrypsin, to produce amino acids that can be absorbed into the bloodstream.

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21. A patient with heartburn needs to worry about his blood pressure.

Explanation

Heartburn is a common symptom of acid reflux, which occurs when stomach acid flows back into the esophagus. While heartburn can be uncomfortable, it is not directly related to blood pressure. Blood pressure is a measure of the force of blood against the walls of the arteries, and it can be affected by various factors such as diet, exercise, and stress. However, heartburn itself does not have a direct impact on blood pressure. Therefore, the statement that a patient with heartburn needs to worry about his blood pressure is false.

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22. What is the purpose of this structure?

Explanation

This structure's purpose is to absorb nutrients.

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23. Constipation results from:

Explanation

Constipation occurs when there is too much water absorbed in the large intestine. The large intestine is responsible for absorbing water from the waste material as it passes through the digestive system. If too much water is absorbed, the stool becomes dry and hard, making it difficult to pass. This can be caused by factors such as dehydration, lack of fiber in the diet, or certain medications. Increasing water intake and consuming a fiber-rich diet can help prevent constipation by ensuring that the right amount of water is absorbed in the large intestine.

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24. Which of these organs is involved in ELIMINATION of waste?

Explanation

The small intestine is involved in the elimination of waste. After digestion occurs in the small intestine and nutrients are absorbed into the bloodstream, the remaining waste material is passed into the large intestine. The large intestine then absorbs water and electrolytes from the waste, forming feces, which is eventually eliminated from the body through the rectum and anus.

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25. Blood in this blood vesel would have:

Explanation

The blood in this blood vessel would have low amounts of oxygen and low amounts of waste because this blood vessel is most likely a vein, which carries deoxygenated blood back to the heart. Deoxygenated blood has low amounts of oxygen, and waste products such as carbon dioxide and metabolic waste.

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The organ shown below is the:
The main job of the kidneys is to:
The organ shown below is the:
Dialysis helps kidney patients by:
Which is an example of chemical digestion?
The organ shown below is the:
Which of the following secretions comes from the liver?
The duodenum is the end of the small intestine.
Parietal cells make ____________, which helps pepsinogen to digest...
The small projections that increase the surface area of the small...
If this organ fails, what will happen?
Urine is filtered out of waste from the large intestine.
A patient complains of pain and discomfort in his upper chest. ...
The part of the small intestine shown here is the:
What would happen if the mucus cells in the stomach were not working...
This organ is involved primarily in:
What do the parietal cells in the stomach make?
What would be an appropriate treatment for someone with IBS?
A patient is brought into the ER because he had been vomiting and his...
What type of organic molecule is mainly digested in the stomach?
A patient with heartburn needs to worry about his blood pressure.
What is the purpose of this structure?
Constipation results from:
Which of these organs is involved in ELIMINATION of waste?
Blood in this blood vesel would have:
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