About This Chapter
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
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.
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.
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.
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.
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!
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!
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!
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.
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.
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!
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.
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.
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.
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.
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!
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.
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Other chapters within the Muscles of the Body for Health Professionals course
- Muscles of the Head
- Muscles of the Mouth
- Muscles of the Tongue
- Muscles of the Neck
- Muscle Dysfunction in the Head, Neck & Shoulders
- Muscles of the Chest
- Muscles of the Abdomen
- Iliac Region Muscles
- Muscles of the Upper Arm
- Muscles of the Forearm
- Muscles of the Hand
- Muscles of the Back
- Muscles of the Pelvis
- Gluteal Muscles
- Muscles of the Thigh
- Muscles of the Leg
- Muscles of the Foot
- Tendonitis & Muscle Tears