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Organ Systems
Next Generation: HS.LS1.2 MS.LS1.3 MS.LS1.3 NGSS

Organ Systems

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This lesson will give a brief overview of the body's eleven organ systems and discuss their major roles in the body.

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Tutorial

What's Covered

Welcome to this lesson today, titled body systems overview. Today you’re going to be taking a look at the level of organization that involves organ systems. And since this is a human biology course, you will be looking at the 11 different body systems in the human body.

  1. The 11 Organ Systems

1. The 11 Organ Systems

Review: Life is organized into various levels, starting at the smallest level with atoms, which compose molecules, which compose cells, which compose tissues, which then will compose organs, which make up organ systems, and organ systems make up organisms.

Below is a diagram that shows an illustration of the 11 systems discussed in this lesson.

1. INTEGUMENTARY SYSTEM:

This system is basically made up of your outer layer-- upper body-- of your skin. The purpose of the integumentary system is for protection of your body. It also helps to regulate your temperature, and it can receive sensory information.

Term to Know

Integumentary System

Body system that composes the body's outer covering to protect the body, receive sensory information and control body temperature.

2. NERVOUS SYSTEM:

The main role of your nervous system is to detect stimuli in your environment, and then control responses in order to react to that stimulus.

Term to Know

Nervous System

Body system that detects stimuli and coordinates responses.

3. MUSCULAR SYSTEM:

Your muscular system basically coordinates your movements. It allows for your body to be able to move and it helps to generate heat for your body to maintain a constant internal temperature; this helps to maintain homeostasis.

Term to Know

Muscular System

Body system that allows for movement, posture and production of heat

4. SKELETAL SYSTEM:

Your skeletal system works in conjunction with your muscular system to allow for movement and gives your body its shape. It supports your body by protecting protects internal organs and it also can store minerals. Another important part of our skeletal system is that it makes red blood cells.

Term to Know

Skeletal System

Body system that provides attachment point for muscles, stores minerals, protects organs and makes red blood cells.

Example Different minerals, like calcium, are stored within your skeletal system.

5. CARDIOVASCULAR SYSTEM:

Your cardiovascular system is another important body system because its main role is to transport blood and other materials throughout your body. Blood is what carries oxygen to the tissues in your body, and other different important materials. It also helps dispose of carbon dioxide waste.

Term to Know

Cardiovascular System

Body system that works to pump blood throughout the body.

6. ENDOCRINE SYSTEM

The endocrine system’s main function is to control your body function with the use of hormones. It produces and secretes hormones that help control different body functions.

Term to Know

Endocrine System

Body system that makes and secretes hormones which regulate body functioning.

7. LYMPHATIC SYSTEM:

The purpose of the lymphatic system is to collect, and then return, tissue fluids back to the blood. It plays a role in your immune system in protecting your body from different invaders.

Term to Know

Lymphatic System

Body system that works with the immune system to defend the body against pathogens.

8. RESPIRATORY SYSTEM:

Your respiratory system’s main role is to deliver oxygen to your different body tissues and help remove carbon dioxide waste.

Term to Know

Respiratory System

Body system that delivers oxygen and removes carbon dioxide from the body.

9. DIGESTIVE SYSTEM:

The purpose of your digestive system is to ingest, and then break down and process, foods or liquids that you take into your body. It helps you to intake foods and liquids, digest it, process it, and then get the nutrients from it that you need.

Term to Know

Digestive System

Body system that ingests, digests and absorbs nutrients needed in the body.

10. URINARY SYSTEM:

Your urinary system’s job is to control the volume and composition of blood. It also acts to excrete extra fluids or waste from our body that you don't need.

Term to Know

Urinary System

Body system that maintains the chemical make up and volume of blood and rids the body of excess fluids.

11. REPRODUCTIVE SYSTEM:

For all of your other body systems, it's the same for male or female, but for the reproductive system, it varies from a male to a female. Male and female have different reproductive systems, but the basic purpose of the reproductive system is to develop a fetus.

Term to Know

Reproductive System

Body systems specific to male or females that produce eggs and sperm necessary for the formation of a fetus.


Summary

Today you learned about the 11 Organ Systems.Specifically, you learned about the integumentary, nervous, muscular, skeletal, cardiovascular, endocrine, lymphatic, respiratory, digestive, urinary, and reproductive systems.

Source: THIS WORK IS ADAPTED FROM SOPHIA AUTHOR AMANDA SODERLIND

TERMS TO KNOW
  • Reproductive System

    Body systems specific to male or females that produce eggs and sperm necessary for the formation of a fetus.

  • Urinary System

    Body system that maintains the chemical make up and volume of blood and rids the body of excess fluids.

  • Digestive System

    Body system that ingests, digests and absorbs nutrients needed in the body.

  • Respiratory System

    Body system that delivers oxygen and removes carbon dioxide from the body.

  • Lymphatic System

    Body system that works with the immune system to defend the body against pathogens.

  • Endocrine System

    Body system that makes and secretes hormones which regulate body functioning.

  • Cardiovascular System

    Body system that works to pump blood throughout the body.

  • Skeletal System

    Body system that provides attachment point for muscles, stores minerals, protects organs and makes red blood cells.

  • Muscular System

    Body system that allows for movement, posture and production of heat.

  • Nervous System

    Body system that detects stimuli and coordinates responses.

  • Integumentary System

    Body system that composes the body's outer covering to protect the body, receive sensory information and control body temperature.