Which Two Concepts Explain How the Body Moves?

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Welcome to this informative article that focuses on the two primary concepts that explain how the human body moves. Our bodies are fascinating machines, programmed to move in a variety of ways that allow us to carry out various tasks and participate in physical activities. However, have you ever considered how your body is capable of accomplishing these movements? This article will delve into the two main concepts that explain how the human body moves and analyze their advantages and disadvantages.

Two Concepts That Explain How the Body Moves

The Introduction

The human body is a complex machine that many scientists and medical professionals have continuously studied for centuries. One of the most critical aspects of the human body is its ability to achieve motion, which is fundamental to the ability to live, play, and enjoy life. The body’s ability to move is thanks to various parts of our body that work together to create motion. However, the scientific explanation behind how the body moves can often be complicated.

There are two main concepts behind how the human body moves. These concepts are the skeletal and muscle systems that make up the body and enable it to perform an array of movements. By understanding how these two systems operate, you can create a stronger foundation for athletic training or a healthier body. Continue reading to learn more about which two concepts explain how the body moves and explore the advantages and disadvantages of these concepts.

The Skeletal System

The skeletal system comprises all of the bones and joints in the body, protecting vital organs and serving as a framework for the body. The bones of the human body allow us to move by creating a structure that muscles can use to pull and create motion. There are about 206 bones in the adult human body, each with a specific role in creating motion.

At the joints of two bones, there is usually a cartilage that serves as a cushion between the ends and absorbs the stress placed on the bone. The ligament surrounds the joint and connects the two bones. Ligaments are critical in holding the bones of the body together and enabling movement at the joint.

The skeletal system contributes to the body’s ability to move by creating a series of levers. The bones are levers, while the joints are pivots, allowing for a range of motion and fluid movement. Understanding the skeletal system is critical for understanding how our body moves because the bones’ positioning and condition can have a significant effect on physical activities.

The Muscular System

The muscular system is responsible for a body’s motion, whether voluntary or involuntary and is made up of muscle tissue. The muscle tissue is made up of long cells referred to as fibers that are responsible for the contraction and relaxation of the body. By contracting a muscle, the body can create movement and achieve the desired motion.

There are three primary types of muscles: smooth, cardiac, and skeletal muscles. Smooth muscles control involuntary movements in internal organs like the intestines, while cardiac muscles are essential in controlling the heartbeat. Skeletal muscles, on the other hand, are the ones we are most familiar with and enable us to move our limbs and body parts.

The muscular system works with the skeletal system in creating movement. Skeletal muscles attach to the bones in a series of tendons that create motion by pulling on the bones. The muscles pull on the bones through the tendons, using the bones as levers, in conjunction with the joints.

Strengths and Weaknesses of the Two Concepts That Explain How the Body Moves

Advantages of the Skeletal System

The skeletal system is crucial in enabling movement and creating a stable framework for the body. Some of the significant strengths of the skeletal system include:

  1. Providing a stable structure: The bones create a stable structure for the muscles to work on, allowing for movement and strength-building.
  2. Protecting vital organs: The bones of the body play a critical role in protecting the body’s vital organs, such as the brain, heart, and lungs.
  3. Assisting in posture and balance: The skeletal system’s positioning and balance are critical, allowing for good posture and balance to aid in physical activities.

However, some of the significant weaknesses of the skeletal system include:

  1. Poor response to injuries: When bones experience injuries, it may take a considerable amount of time to recuperate fully, leading to decreased physical activity.
  2. Brittle bones: Bones become denser as humans age, becoming more susceptible to breaks and fractures.
  3. Inability to self-repair: Bones are not capable of repairing themselves, making it difficult to promote self-healing for severe fractures and injuries.

Advantages of the Muscular System

Some significant strengths of the muscular system include:

  1. Ability to self-repair: Muscles can repair small injuries, promoting healing after workouts or physical injuries.
  2. Improve strength and agility: Through exercise, the muscular system can quickly increase strength and flexibility.
  3. Circulatory system support: The muscles aid in the movement of blood and nutrients throughout the body.

That said, some significant weaknesses of the muscular system include:

  1. Not self-regulating: The muscles may not behave optimally without the proper conditioning or training, leading to weakness and pain.
  2. Plays a part in fatigue: Long-term fatigue can result in muscle damage or injury.
  3. Risk of muscle pain: Working the muscles beyond their capacity can lead to muscle pain and injury.

Table of the Concept of How the Body Moves

Concepts Advantages Disadvantages
The Skeletal System Provides a stable structure
Protects vital organs
Assists in posture and balance
Poor response to injuries
Brittle bones
Inability to self-repair
The Muscular System Ability to self-repair
Improve strength and agility
Circulatory system support
Not self-regulating
Plays a part in fatigue
Risk of muscle pain

Frequently Asked Questions (FAQs)

1. Why is the skeletal system essential?

The skeletal system is essential as it creates a framework for the body and connects the muscles responsible for movement. It also protects critical organs in the body.

2. What causes brittle bones, and how can you prevent it?

Bones become more susceptible to breaks and fractures as we age due to decreased calcium and other mineral production in the bones. To prevent brittle bones, you can consume foods rich in calcium and vitamin D or consult your physician for bone density scans.

3. What is the best way to strengthen your muscles?

The best way to strengthen your muscles is through regular exercise, a balanced diet, and proper nutrition. Additionally, you can work with a certified personal trainer to achieve your fitness goals.

4. How can you prevent muscle injuries?

Preventing muscle injury involves ensuring you warm up your muscles before any physical activity, staying hydrated, getting proper rest, and allowing injured muscles to heal fully before returning to physical activity.

5. Why is proper posture important?

Proper posture aids in physical activities such as running, walking, and sitting. Good posture also improves breathing and provides balance and stability.

6. Can poor posture lead to muscle pain?

Yes, poor posture can lead to muscle pain or discomfort as the muscles and joints are not aligned correctly. This misalignment can cause unnecessary stress on the body, resulting in discomfort and soreness.

7. What is the function of the muscles in the body?

The muscles in the body are responsible for movement, maintaining posture, regulating the flow of blood and nutrients throughout the body, and allowing for digestion and breathing, among other functions.

8. How many bones are in the human body?

There are about 206 bones in the adult human body.

9. What are the three types of muscles in the human body?

The three types of muscles in the human body are smooth, cardiac, and skeletal muscles.

10. What is a ligament?

A ligament connects two bones at a joint, allowing for movement and stability.

11. What is a tendon?

A tendon is a flexible cord of fibrous tissue that connects muscles to bones.

12. Why is physical activity essential to the body?

Physical activity helps keep the muscles, bones, and joints in the body strong and healthy, improving overall health and preventing diseases like heart disease, obesity, and others.

13. How does the muscular and skeletal system work together?

The skeletal system provides a framework that muscles pull against or act as a lever on to create motion in the body. Through tendons that connect to the skeletal system, the muscular system allows for fluid movement and support the body.


In conclusion, the two primary concepts that explain how the body moves are the skeletal and muscular systems. Understanding how these systems work together to create movement, stability and perform various physical activities is essential to maintaining a healthy human body. While each concept has its strengths and weaknesses, an understanding of these concepts is critical in promoting physical activity longevity and overall health, making it vital to maintain good health and perform regular physical exercise.

So, take the first step today by learning more about the factors that influence your body’s motion, and work towards promoting good health!

Closing Words

Thank you for taking the time to read this article and reaching the end of it. It is important to note that the information provided in this article is not intended to be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified healthcare professional with any questions you may have regarding your health or any medical condition. Stay healthy and motivated and, most of all, stay fit!

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