Human Body Systems Quiz

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Questions and Answers

What is the main function of the nervous system?

  • Controlling many of the body's functions (correct)
  • Fighting off diseases and infections
  • Covering the whole body
  • Breaking down food to give nutrients to the body

How fast does the nervous system transmit signals?

  • 20 meters per second
  • 50 meters per second
  • 200 meters per second
  • 100 meters per second (correct)

What is a fun fact about the digestive system?

  • Your skin is thickest on your feet and thinnest on your eyelids
  • The stomach can hold up to 4 pounds of food at one time (correct)
  • A female can give birth to about 35 babies in a lifetime
  • The knee is the largest joint in the body

What is the main function of the immune system?

<p>Fighting off diseases and infections (B)</p> Signup and view all the answers

What is the main function of the musculoskeletal system?

<p>Protects vital organs (C)</p> Signup and view all the answers

How many pain receptors are there in 1 square inch of skin?

<p>1300 (C)</p> Signup and view all the answers

What is the largest joint in the body?

<p>Knee (B)</p> Signup and view all the answers

What can reduce sexual function according to the text?

<p>Alcoholism, smoking, and drug abuse (B)</p> Signup and view all the answers

Which body system is responsible for fighting off diseases and infections?

<p>Immune System (B)</p> Signup and view all the answers

What is the primary role of the nervous system?

<p>Controls many of the functions of your body (A)</p> Signup and view all the answers

Where is the skin thickest according to the text?

<p>Feet (D)</p> Signup and view all the answers

What is the primary function of the reproductive system?

<p>Allows people to make babies in order to sustain the species</p> Signup and view all the answers

What is the capacity of the stomach in terms of food it can hold at one time?

<p>Up to 4 pounds of food</p> Signup and view all the answers

What is the largest bone in the human body?

<p>Femur</p> Signup and view all the answers

What is the main role of the integumentary system?

<p>Covers the whole body</p> Signup and view all the answers

How does the immune system remember harmful invaders?

<p>It remembers every harmful invader so it knows how to fight it off</p> Signup and view all the answers

What effect do alcoholism, smoking, and drug abuse have on sexual function?

<p>Greatly reduce sexual function</p> Signup and view all the answers

What is the speed at which the nervous system transmits signals?

<p>100 meters per second</p> Signup and view all the answers

How many pain receptors are there in 1 square inch of skin?

<p>1300</p> Signup and view all the answers

What are the primary functions of the cell membrane?

<p>Act as a guard, let certain molecules into the cell, and store excess food</p> Signup and view all the answers

Name the four types of tissues and briefly describe their functions.

<p>Epithelial (covers body surfaces), Connective (provides support), Muscle (provides movement and support), Nervous (conducts and coordinates body information)</p> Signup and view all the answers

Describe the characteristics of Squamous cells.

<p>Flat shape</p> Signup and view all the answers

What is the function of Collagen in connective tissue?

<p>Provides strength</p> Signup and view all the answers

Name the three types of muscle tissue and their locations in the body.

<p>Smooth (linings of blood vessels and tubular organs), Cardiac (muscle of the heart), Skeletal (attached to bone)</p> Signup and view all the answers

What are the two types of cells in nervous tissue and their respective functions?

<p>Neurons (transmit impulses throughout the body), Neuroglia (assist neurons)</p> Signup and view all the answers

Define Transitional cells and describe their notable characteristic.

<p>Type of epithelial noted for its ability to expand and recoil</p> Signup and view all the answers

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