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Human Body Basics Part VI Trivia Quiz

The sixth edition of the quiz. I have attempted to make this one a little less difficult than the last several of the series, but hopefully equally informative.

A multiple-choice quiz by jstagamtome. Estimated time: 5 mins.

Author
jstagamtome

Time
5 mins

Type
Multiple Choice

Quiz #
308,023

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
2956

Awards
Top 20% Quiz

One at a Time - Single Page - Timed Game

Question 1 of 10

1. What is a horseshoe kidney? Hint

A kidney without sufficient blood supply to produce urine

A nonfunctional kidney remnant which has no blood supply or ureteral attachment

A fully functional kidney that resulted from the fusion of the kidneys during development

A normal kidney which has folded over itself to create a horseshoe shape

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Question 2 of 10

2. Which of the following is the longest? Hint

Stomach

Esophagus

Small intestine

Large Intestine

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Question 3 of 10

3. The lingula is part of which organ? Hint

Spleen

Liver

Lung

Pancreas

4. The heart is composed of a special type of muscle fiber different from that found in other muscles of the body. Most muscle is skeletal, some is smooth muscle, and the heart is comprised of cardiac muscle which has which of the following characteristics? Hint

all of these

contains bands of branching, angular muscle fibers

ability to contract autonomously

cardiac muscle fibers do not end in tendons

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Question 5 of 10

5. A suntan develops as a result of which of the following? Hint

Neither

Both

Darkening of existing melanin pigment in the skin

Production of more melanin in the skin

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Question 6 of 10

6. The immune system has "memory cells" that remember exposure to antigens so the immune response can be quicker the second time if re-exposed to the antigen.

True

False

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Question 7 of 10

7. How is mucus removed from the bronchial tubes, other than by coughing? Hint

Tiny channels called lamellae directly beneath the surface channel the mucus upwards

Periodic contractions of the smooth muscle in the airway propels secretions upward and out of the airway

Tiny projections called cilia on the cells lining the airway gradually move the secretions upward

There is no other mechanism besides coughing

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Question 8 of 10

8. Which of these statements is false? Hint

Sperm are produced in males from birth until about age 70

A man produces about 120 million sperm per day

A girl is born with 2 million eggs, has about 300,000 by age 14, and only about 400 become fully mature

Female infertility is more common than male infertility

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Question 9 of 10

9. The brain is composed mostly of what substance? Hint

Protein

Water

Carbohydrate

Fat

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Question 10 of 10

10. Which of the following most closely resembles the arrangement of skeletal muscle fibers? Hint

The cables of a suspension bridge

A filligree chain

A nautical rope

A slinky

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Quiz Answer Key and Fun Facts

1. What is a horseshoe kidney?

Answer: A fully functional kidney that resulted from the fusion of the kidneys during development

The incidence of horseshoe kidney is between 1 in 400-800 live births, with the preponderance of the data suggesting it is closer to 1 in 400.

2. Which of the following is the longest?

Answer: Small intestine

Divided into three sections named the duodenum, jejunum, and ileum, the small intestine is 20 feet in length, compared to 10 inches for the esophagus, one foot for the stomach, and 5 feet for the large intestine.

3. The lingula is part of which organ?

Answer: Lung

The lingula is the tongue shaped portion of the left upper lobe of the lung which covers the heart. The lingula is the left lung's best "excuse" for a middle lobe, when in fact the right lung has three lobes and the left, only two.

Answer: all of these

Striated muscle is contained within the heart, which has the characteristic of autonomic contractility. Smooth muscle is contained in the intestines, and skeletal muscle moves the extremities, and provides movement and protection for most of the rest of the body.

5. A suntan develops as a result of which of the following?

Answer: Both

Oxidation of existing melanin by ultraviolet radiation causes the early tan and production of more melanin by the melanocytes in the skin results in delayed tanning.

6. The immune system has "memory cells" that remember exposure to antigens so the immune response can be quicker the second time if re-exposed to the antigen.

Answer: True

These are B lymphocytes, and are one of the main reasons vaccinations are so useful in preventing disease.

7. How is mucus removed from the bronchial tubes, other than by coughing?

Answer: Tiny projections called cilia on the cells lining the airway gradually move the secretions upward

The cilia are lost in smokers, and to protect itself, the delicate single layer of columnar cells which bear the cilia become stratified squamous cells, resembling the skin. The primary difference between the lining of the skin and the airway then is that skin cells are keratinized, to provide additional resistance to the elements.

8. Which of these statements is false?

Answer: Sperm are produced in males from birth until about age 70

Sperm begin to be produced at puberty between the ages of 12 and 15. Female infertility is identified in one half of cases, male infertility in a third, and the remainder of infertile cases have unknown causes.

9. The brain is composed mostly of what substance?

Answer: Water

Water comprises 77-78% of the brain, lipid or fat 10-12%, protein 8%, and carbohydrate approximately 1%.

10. Which of the following most closely resembles the arrangement of skeletal muscle fibers?

Answer: The cables of a suspension bridge

Parallel circular cables in intertwined groups is seen in both skeletal muscle fibers as well as the very durable, strong, and long lived suspension bridge cables.

Source: Author jstagamtome

This quiz was reviewed by FunTrivia editor crisw before going online.
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