8th grade science part 1-1 - The Human body | Attempts: 4162

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| By Jas765

Jas765

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Quizzes Created: 1 | Total Attempts: 4,142

| Attempts: 4,162

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1/7 Questions

How many bones are in an adult human body?
- 206
- About 500
- Only 7

About This Quiz

The human body is a vital part in the study of biology. To better understand the workings and intricacies of the human body it is important that we study it well hence why it’s a major topic of study in 8th grade science. How well do you remember the 8th grade human sciences? Try this quiz.

8th Grade Science Part 1-1 - The Human Body - Quiz

2.

Skeleton functions include:
- Looking cool
- Giving our skin color
- Shape and support
- Nothin'
- Protection
Correct Answer(s)

A. Shape and support
A. Protection

Explanation

Skeleton functions include shape and support, as it provides the framework for the body and helps maintain its shape. The skeleton also plays a crucial role in protection, as it surrounds vital organs such as the brain, heart, and lungs, shielding them from potential injuries.

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10
3.

The shiny part of a bone is
- Plastic
- Salt
- Blood
- Cartilage
Correct Answer

A. Cartilage

Explanation

Cartilage is the correct answer because it is a smooth, shiny, and flexible connective tissue that covers the ends of bones in joints. It provides support, cushioning, and reduces friction between bones during movement. Unlike bones, cartilage does not contain blood vessels, which contributes to its shiny appearance. Additionally, cartilage is not made of plastic, salt, or blood, making them incorrect options.

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9
4.

Bones are alive. They contain living cells and need a blood supply to provide oxygen and other nutrients.
- True
- False.
Correct Answer

A. True

Explanation

Bones are indeed alive as they contain living cells and require a blood supply to provide them with oxygen and nutrients. The cells within bones are responsible for their growth, repair, and remodeling. Additionally, bones play a crucial role in supporting the body, protecting organs, and producing blood cells. Therefore, it is accurate to say that bones are alive.

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12
5.

Ossification is...
- Some made up word
- The hardening of your bones as you get older
- Turning into a fossil
Correct Answer

A. The hardening of your bones as you get older

Explanation

Ossification refers to the natural process of bone formation and hardening that occurs as a person ages. It involves the deposition of calcium and other minerals in the bone matrix, making the bones stronger and more rigid. This process is essential for maintaining the structural integrity and strength of the skeletal system. As individuals grow older, ossification helps prevent bone loss and maintain overall bone health.

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9
6.

Osteoporosis is...
- A skin disease
- A disease of the bone that will lead to a greater risk of fracture.
- Nothing important
Correct Answer

A. A disease of the bone that will lead to a greater risk of fracture.

Explanation

Osteoporosis is a disease of the bone that weakens the bone structure and makes them more prone to fractures. It is not a skin disease or something that is not important. Osteoporosis is a significant health concern as it can lead to severe complications and decreased quality of life for individuals affected by it.

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6
7.

The 3 kinds of joints are...
- Hinge joints (like the knee and elbow)
- Pivot joint (between the skull and spine)
- Stick joint (the arm)
- Ball and socket joint (hip and shoulder)
Correct Answer(s)

A. Hinge joints (like the knee and elbow)
A. Pivot joint (between the skull and spine)
A. Ball and socket joint (hip and shoulder)

Explanation

The given answer lists the three types of joints correctly. Hinge joints, such as the knee and elbow, allow movement in only one direction, like the opening and closing of a door. Pivot joints, like the joint between the skull and spine, enable rotation or twisting movements. Ball and socket joints, found in the hip and shoulder, allow for a wide range of motion in multiple directions, including rotation and circumduction. The answer does not include the "stick joint" because it is not a recognized type of joint in human anatomy.

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9

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Quiz Edited by
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Nov 16, 2009

Quiz Created by
Jas765

8th Grade Science Part 1-1 - The Human Body

How many bones are in an adult human body?

Quiz Preview

Skeleton functions include:

The shiny part of a bone is

Bones are alive. They contain living cells and need a blood supply to provide oxygen and other nutrients.

Ossification is...

Osteoporosis is...

The 3 kinds of joints are...