Human Excretory System Quiz

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| By Paxalles

Paxalles

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Quizzes Created: 22 | Total Attempts: 795,759

Questions: 10 | Attempts: 22,368 | Updated: Dec 13, 2023

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Take this knowledgeable quiz on the human excretory system to see how much you know about the process. Just like the house and taking out the trash, the body also needs to get rid of unwanted materials within the body. This process is made possible by the human excretory system through the help of several organs and the anus. How much did you understand in our analysis of the topic? Take this excretory system practice test. All the best!

Questions and Answers

1.

What is the excretory system in charge of?
- A.
  
  Breaking down food so it can be used by the body.
- B.
  
  Giving the body support and strength.
- C.
  
  Removing wastes and excess fluid from the body.
- D.
  
  Keeping body hydrated
Correct Answer
C. Removing wastes and excess fluid from the body.

Explanation
The excretory system is responsible for removing wastes and excess fluid from the body. This system includes organs such as the kidneys, bladder, and lungs, which filter waste products from the blood and eliminate them through urine, sweat, and exhalation. By removing these waste products, the excretory system helps maintain the body's overall balance and prevent the buildup of harmful substances.

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2.

The two major organs of the excretory system.
- A.
  
  Ureters
- B.
  
  Kidneys
- C.
  
  Ovaries
- D.
  
  Lungs
Correct Answer
B. Kidneys

Explanation
The kidneys are the major organs of the excretory system because they are responsible for filtering waste products from the blood and producing urine. They help regulate the body's fluid balance, electrolyte levels, and blood pressure. The kidneys also play a crucial role in removing toxins, drugs, and excess water from the body. The ureters, on the other hand, are tubes that transport urine from the kidneys to the bladder. The ovaries are part of the reproductive system, and the lungs are primarily involved in the respiratory system.

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3.

Filtering of the blood takes place in these areas.
- A.
  
  Ureters
- B.
  
  Intestines
- C.
  
  Nephrons
- D.
  
  Neurons
Correct Answer
C. NepHrons

Explanation
The nephrons are the functional units of the kidneys, responsible for filtering waste products and excess water from the blood to form urine. They play a crucial role in maintaining the body's fluid balance, electrolyte levels, and removing metabolic waste products. Therefore, the statement "Filtering of the blood takes place in these areas" accurately describes the function of the nephrons in the kidneys.

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4.

These are muscular ducts that propel urine from the kidneys to the urinary bladder.
- A.
  
  Arteries
- B.
  
  Veins
- C.
  
  Ureters
- D.
  
  Pulmonary artery
Correct Answer
C. Ureters

Explanation
The ureters are muscular ducts that carry urine from the kidneys to the urinary bladder. They have smooth muscles in their walls that contract and propel urine through peristaltic movements. The arteries and veins are blood vessels that transport blood, while the pulmonary artery specifically carries deoxygenated blood from the heart to the lungs. Therefore, the correct answer is ureters.

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5.

A tube that carries urine from the bladder to the outside of the body.
- A.
  
  Ureter
- B.
  
  Urethra
- C.
  
  Nephron
- D.
  
  Valve
Correct Answer
B. Urethra

Explanation
The urethra is the tube that carries urine from the bladder to the outside of the body. It is responsible for the elimination of urine from the body during urination. The urethra is a muscular tube that connects the bladder to the external urethral opening, allowing urine to pass out of the body.

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6.

The organ that collects and stores urine excreted by the kidneys before it is disposed of by urination.
- A.
  
  Urethra
- B.
  
  Nephron
- C.
  
  Bladder
- D.
  
  Liver
Correct Answer
C. Bladder

Explanation
The bladder is the correct answer because it is the organ that collects and stores urine excreted by the kidneys before it is disposed of by urination. The kidneys filter waste products from the blood and produce urine, which then flows down the ureters into the bladder. The bladder expands as it fills with urine and contracts when it is time to urinate, allowing the urine to be expelled through the urethra.

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7.

The largest organ of the body that gives off bodily sweat and perspiration.
- A.
  
  Kidney
- B.
  
  Bladder
- C.
  
  Skin
- D.
  
  Gall bladder
Correct Answer
C. Skin

Explanation
The correct answer is skin because it is the largest organ of the body that produces sweat and perspiration. Sweat is produced by sweat glands in the skin and helps regulate body temperature. Perspiration is the process of sweat evaporating from the skin, which also helps cool the body. The skin acts as a barrier between the internal organs and the external environment, protecting the body from harmful substances and regulating moisture levels.

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1
8.

A cluster of capillaries in the kidneys.
- A.
  
  Glomerulus
- B.
  
  Ureters
- C.
  
  Nephrons
- D.
  
  Villi
Correct Answer
A. Glomerulus

Explanation
The correct answer is glomerulus. The glomerulus is a cluster of capillaries located in the kidneys. It plays a crucial role in the filtration of blood and the formation of urine. The glomerulus is responsible for filtering waste products, excess water, and electrolytes from the blood, while retaining important substances like proteins and red blood cells. This filtration process is a vital part of maintaining the body's fluid balance and eliminating waste products.

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9.

What is the shape of kidneys?
- A.
  
  Bean shape
- B.
  
  Oval shape
- C.
  
  Cylinder shape
- D.
  
  Rod shape
Correct Answer
A. Bean shape

Explanation
The correct answer is bean shape. The kidneys are two bean-shaped organs located in the back of the abdomen. Their shape allows them to fit comfortably in the space between the ribs and the lower back muscles. The bean shape also helps in their function of filtering waste products and excess fluid from the blood, as well as regulating electrolyte levels in the body.

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10.

Villis are present in?
- A.
  
  Kideny
- B.
  
  Large intestine
- C.
  
  Small intestine
- D.
  
  Stomach
Correct Answer
C. Small intestine

Explanation
Villis are present in the small intestine. Villi are tiny, finger-like projections that line the inner surface of the small intestine. They greatly increase the surface area of the small intestine, allowing for more efficient absorption of nutrients from digested food. The presence of villi in the small intestine helps in the absorption of nutrients such as carbohydrates, proteins, and fats into the bloodstream.

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