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Ch 5: Muscles of the Shoulder

About This Chapter

Use this informative chapter to review the muscles of the shoulder for an important exam or to complete a challenging assignment. These short lessons and multiple-choice quizzes are designed by professional instructors and accessible 24 hours a day.

Muscles of the Shoulder - Chapter Summary

This informative chapter covers the muscles of the shoulder in a series of brief lessons. In these lessons, you'll study the origin and function of the trapezius muscle, the function, action and location of the deltoid muscle and more. Get up to speed on all the major shoulder muscles with these self-paced learning tools. To test your understanding, take the short quiz you'll find accompanying each lesson. Feel free to reach out to one of our helpful instructors for assistance if you need it. After completing this chapter, you should be ready to:

  • Discuss the symptoms and treatment for deltoid muscle atrophy
  • Detail the insertion and innervation of the teres major
  • Explain where the rotator cuff muscles are and the common symptoms of injury in these muscles
  • Define the supraspinatus muscle and its origin
  • Explain the symptoms associated with supraspinatus tendinosis and subacromial impingement
  • Identify the function and action of the infraspinatus muscle
  • Outline the origin and function of the teres minor muscle
  • Point out the subscapularis muscle and its insertion

16 Lessons in Chapter 5: Muscles of the Shoulder
Test your knowledge with a 30-question chapter practice test
Trapezius Muscle: Insertion, Origin & Action

1. Trapezius Muscle: Insertion, Origin & Action

The trapezius muscle is one of the largest muscle of the back, a muscle where many people hold their stress. This lesson will provide all types of information about this muscle, including its origin, insertion, and action.

Trapezius Muscle: Function, Location & Innervation

2. Trapezius Muscle: Function, Location & Innervation

Has your neck, shoulders, or upper back ever been sore or tight? If you are like the majority of people all over the world, you answered a resounding YES! The trapezius muscle is one of the large muscles found in these areas of the body. Learn all about the trapezius muscle in this lesson.

What Does the Deltoid Muscle Do? - Definition & Function

3. What Does the Deltoid Muscle Do? - Definition & Function

There are over 600 muscles in the human body. Do you know what the deltoid muscle is? In this lesson, we will learn where the deltoid muscle is and what it does.

Where is the Deltoid Muscle? - Location, Regions & Parts

4. Where is the Deltoid Muscle? - Location, Regions & Parts

The deltoid muscle plays an important role in how the arms are moved. This lesson will discuss where the deltoid muscle is located including its region and parts.

Deltoid Muscle: Origin, Insertion & Action

5. Deltoid Muscle: Origin, Insertion & Action

The shoulder joint is one of the most mobile joints in the body, and this joint is controlled primarily by the deltoid muscle. If you want to learn all about this amazing muscle, be sure to check out this lesson!

Teres Major: Origin, Action & Insertion

6. Teres Major: Origin, Action & Insertion

The teres major muscle has been nicknamed 'the little helper of the lat.' Learn why it has this nickname, as well as other information, including its origin, action and insertion, by reading this lesson!

Teres Major: Location, Function & Innervation

7. Teres Major: Location, Function & Innervation

Do you know much about the teres major, one of the many muscles of the shoulder joint? If not, then be sure to check out this lesson for lots of great facts about this muscle, including its location, innervation, and function!

What are the Rotator Cuff Muscles? - Definition & Actions

8. What are the Rotator Cuff Muscles? - Definition & Actions

Your body is made up of many different muscles that work to allow you to move in all sorts of ways. In this lesson, we will learn about the rotator cuff muscles and what they do.

Supraspinatus Muscle: Definition, Function & Innervation

9. Supraspinatus Muscle: Definition, Function & Innervation

In this lesson we will discuss the supraspinatus muscle. We will cover the location, definition, function and innervation of this important muscle in the shoulder.

Supraspinatus Muscle: Action, Origin & Insertion

10. Supraspinatus Muscle: Action, Origin & Insertion

The supraspinatus muscle is one of the muscles that make up the rotator cuff of the shoulder joint. Learn all about this small but very important muscle by reading this interesting lesson!

Infraspinatus Muscle: Definition, Function & Innervation

11. Infraspinatus Muscle: Definition, Function & Innervation

The infraspinatus muscle plays a very important role in the mobility and stability of the shoulder joint. This lesson will define this important shoulder muscle and describe its function and innervation.

Infraspinatus Muscle: Action, Insertion & Origin

12. Infraspinatus Muscle: Action, Insertion & Origin

The infraspinatus is an important muscle of the shoulder, which is one of the most mobile joints in the human body. Become knowledgeable of infraspinatus by checking out this lesson on the origin, insertion, and action of this muscle.

Teres Minor Muscle: Action, Origin & Insertion

13. Teres Minor Muscle: Action, Origin & Insertion

In this lesson we will discuss the teres minor muscle, where it's located, and the specific actions it allows. We will also cover a brief anatomical overview including the origin and insertion points.

Teres Minor Muscle: Definition, Function & Innervation

14. Teres Minor Muscle: Definition, Function & Innervation

The teres minor is a very small muscle with a very big and important role. Read this lesson to learn all about the teres minor, including its definition, function, and innervation.

Subscapularis Muscle: Definition, Function & Innervation

15. Subscapularis Muscle: Definition, Function & Innervation

Do you know much about the definition, innervation, and function of the subscapularis, a muscle located in each side of the upper back? If not, then be sure to check out this lesson for lots of interesting facts about this muscle!

Subscapularis Muscle: Action, Origin & Insertion

16. Subscapularis Muscle: Action, Origin & Insertion

The subscapularis muscle is one of the most frequently used muscles of the shoulder joint. Educate yourself about the origin, insertion, and action of the subscapularis muscle by taking a look at this lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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