About This Chapter
Muscles of the Neck - Chapter Summary
Our instructors present the muscles of the neck in this informative chapter for your study. Topics covered here include the function and innervation of the platysma muscle and the trigger points, definition and action of the sternocleidomastoid muscle. You can tackle even the most complex of subjects with these lessons, which are written by instructors to make the muscles of the neck easy to understand. Each lesson is followed by a short quiz that works well as a test prep exercise. Feel free to reach out to an instructor if you have any questions along the way. After completing this chapter, you should be able to:
- Outline the symptoms and treatment for sternocleidomastoid syndrome
- Discuss the origin and function of the digastric muscle
- Detail the function of the omohyoid muscle and the symptoms of omohyoid syndrome
- Explain the insertion of the longus colli muscle
- Describe the causes and symptoms of thoracic outlet syndrome
- Identify the function of the scalene muscles
- Detail the action and innervation of the levator scapulae muscles
- Explain what causes levator scapulae syndrome
- Differentiate between the inferior and superior obliquus capitis muscles
- Discuss the origin and definition of the semispinalis capitis muscles
- Outline the symptoms and treatment of splenius capitis syndrome
- Provide a definition for the splenius capitis muscle
1. What is the Platysma Muscle? - Definition & Function
The platysma muscle is a muscle located in the chest, neck, cheek, and mouth areas of the body. In this lesson, learn about the definition and function of the platysma muscle.
2. Platysma Muscle: Action, Origin & Innervation
The platysma muscle is a muscle that runs from the upper chest and shoulders, up through the neck, and attaches to various parts of the lower face. In this lesson, learn about the action, origin, and innervation of the platysma muscle.
3. Sternocleidomastoid Muscle: Origin, Insertion & Action
The sternocleidomastoid muscle has a role in the body as big as its name. Here we will discuss its location in the body (origin and insertion) as well as its action (the movement it makes).
4. Sternocleidomastoid: Nerve Supply & Trigger Points
The sternocleidomastoid muscle is a large muscle located on each side of the neck that can be easily palpated, or felt, with your fingers. This lesson will provide great information about the nerve supply and trigger points of this important muscle.
5. What is the Sternocleidomastoid? - Definition & Function
The sternocleidomastoid is located on each side of the neck and it is one of the largest muscles of the neck. In this lesson, learn about the definition and function of the sternocleidomastoid muscle.
6. Digastric Muscle: Action, Origin & Insertion
The digastric muscle is a small muscle located in the neck, beneath the lower jaw. In this lesson, learn about the origin, insertion, and action of the digastric muscle.
7. Digastric Muscle: Definition, Function & Innervation
The digastric muscle is a small muscle located in the neck, just below the lower jaw. In this lesson, learn about the definition, function, and innervation of the digastric muscle.
8. Omohyoid Muscle: Function, Origin & Innervation
The omohyoid muscle is a thin, relatively long muscle located in each side of the neck. In this lesson, learn about the origin, innervation, and function of the omohyoid muscle.
9. Longus Colli Muscle: Action, Origin & Insertion
The longus colli muscle is a muscle found on both sides of the vertebral column in the neck and upper chest. Are you ready to learn about the action, origin, and insertion of this muscle? Let's get started!
10. Scalene Muscles: Function, Innervation & Action
The scalene muscles are a group of muscles located at each side of the neck. In this lesson, learn about the function, action, and innervation of the scalene muscles.
11. Levator Scapulae: Origin, Insertion & Action
Do you know much about the origin, insertion, and action of the levator scapulae, a muscle that is located on the back sides of the neck? If not, you should definitely read this lesson!
12. Levator Scapulae: Definition, Function & Innervation
Most people use the levator scapulae muscle each time they say ''I don't know''. Learn how and why, and what this muscle is, along with its major functions and innervation!
13. Obliquus Capitis Muscles: Inferior & Superior
The obliquus capitis muscles are a group of muscles of the lower skull and upper neck. Don't miss out on the opportunity to learn about these important muscles, including their origin, insertion, and action.
14. Semispinalis Capitis: Action, Origin & Insertion
Have you ever looked up at the sky to see a bird or plane fly by? If so, you should thank your semispinalis capitis, a muscle located in the back of your neck. This lesson teaches you all about this muscle, including its origin, insertion, and action.
15. Semispinalis Capitis: Definition, Function & Innervation
Do you want to become a whiz about the definition, function, and innervation of the semispinalis capitis muscle? An easy way to become a whiz about this muscle is to simply read the rest of this lesson!
16. Splenius Capitis Muscle: Definition, Origin & Action
Do you know much about the splenius capitis muscle, a muscle located in the back of the neck? If not, then you should just sit back, relax, and get ready to learn all about this amazing muscle!
Earning College Credit
Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
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 Shoulder
- 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