About This Chapter
Muscles of the Chest & Abdomen - Chapter Summary
If you need to study the muscles of the chest and abdomen, this chapter is for you. Using an engaging and simplified teaching style, our expert instructors explain important information about the functions, locations, insertions and innervations of chest and abdomen muscles. Our short lessons come with interactive quizzes to help you check your understanding of muscle terms and concepts. You can complete the chapter at your own pace, and it's accessible on any device that has an Internet connection. When you're finished with the chapter, you should be able to:
- Recognize the locations and functions of intercostal muscles, serratus posterior muscles and the diaphragm muscle
- Explain the origin of transversus abdominis
- Tell where the rectus abdominis muscle is located
- Evaluate the symptoms of diastasis rectus abdominis and rectus abdominis hematoma
- Assess the functions of the cremaster muscle and the quadratus lumborum
- Differentiate between external and internal oblique muscles
- Compare the functions of pectroalis major and pectorals minor muscles
- Identify the symptoms of pectoralis minor syndrome
- Describe subclavius muscle insertion and nerves
- Understand the function and innervation of the serrates anterior muscle
1. Intercostal Muscles: Definition, Function & Location
The human body is made up of many different muscles. Intercostal muscles are found between the ribs. This lesson will discuss what the intercostal muscles are, where they are located, and what they do.
2. Serratus Posterior Muscles: Function & Innervation
How much do you know about the innervation and function of the serratus posterior muscles located in your back? If you answered ''not much,'' then you should definitely check out this lesson!
3. Diaphragm Muscle: Definition, Anatomy & Function
Breathing is essential to life and depends almost completely on the function of the diaphragm. In this lesson, you will learn what the diaphragm is, what it's made of, and how it functions.
4. Transversus Abdominis: Function, Origin & Insertion
This lesson will describe the transversus abdominis: an abdominal muscle which works to stabilize the lower back and pelvis and support the abdominal wall. In this lesson, you will learn about the muscle's function, origin, and insertion.
5. Rectus Abdominis Muscle: Definition, Location & Function
One of the most coveted body parts is a six-pack set of ''abs,'' a muscle that scientists call rectus abdominis. This lesson will teach all kinds of interesting facts about the rectus abdominis muscle, including its definition, location, and function.
6. Rectus Abdominis Muscle: Action, Origin & Insertion
The rectus abdominis muscle is the muscle located at the front of the abdomen that is most often called the 'abs' or the 'six-pack.' Get ready to learn all about this muscle, including its action, origin, and insertion!
7. Diastasis Rectus Abdominis: Symptoms & Treatment
Diastasis rectus abdominis, or diastasis recti, is a common condition affecting the abdominal muscle. It generally occurs in women during and after pregnancy. In this lesson, you will learn about the symptoms and treatment of diastasis rectus abdominis.
8. Rectus Abdominis Hematoma: Symptoms & Treatment
The rectus abdominis is a muscle that forms the abdominal wall. A hematoma is a collection of blood in the body due to trauma or force. This lesson will discuss the symptoms, causes, diagnosis, and treatment of a hematoma in the rectus abdominis.
9. Quadratus Lumborum: Definition, Function & Innervation
Did you know that the quadratus lumborum muscle is often considered both an abdominal AND back muscle? Learn why this is, as well as other great information about this muscle, in this lesson.
10. Quadratus Lumborum: Action, Origin & Insertion
Have you ever sat for so long that your lower back started hurting? If so, there is a good chance that the pain was caused by the quadratus lumborum muscle, one of the many abdominal muscles. This lesson will teach about the origin, insertion, and action of this muscle.
11. External Oblique: Definition, Function & Aponeurosis
The external oblique is a muscle that is part of the abdominal muscles. This lesson will discuss what the external oblique muscles are, what they do, and what the aponeurosis is.
12. External Oblique Muscle: Action, Origin & Insertion
'Oblique' is a term than means diagonal or slanting. Therefore, the external obliques are muscles that run diagonally in the body. Learn all about the external obliques, including their origin, insertion, and action, in this lesson.
13. Internal Oblique Muscle: Action, Origin & Insertion
The internal oblique is very important muscle when celebrating your birthday. Find out why, as well as the action and origin of this muscle, by reading the rest of this lesson.
14. Internal Oblique: Definition, Location & Function
The internal oblique is a part of a group of abdominal muscles that help support the abdominal wall. This lesson will define the internal oblique muscle and discuss the location and function.
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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
- Muscles of the Shoulder
- Muscle Dysfunction in the Head, Neck & Shoulders
- Muscles of the Chest
- 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