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In this article, I will explain “external intercostal muscles” in detail.
External intercostal muscles are one of the muscles that play an important role in breathing and belong to the category of skeletal muscles. These muscles work to help expand the rib cage and support efficient breathing. The article explains in detail the structure, function, and health issues associated with external intercostal muscles. Furthermore, exercises to strengthen this muscle group are also introduced, and it is full of information useful for maintaining daily health. Please use this article, which provides a wealth of knowledge about external intercostal muscles, to deepen your understanding of the body.
Click here to watch a video about external intercostal muscle (external intercostal muscle)
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What are external intercostal muscles
The external intercostal muscles are one of the muscles that support movement of the rib cage and help with breathing. These muscles play an important role during breathing, especially during inhalation. External intercostal muscles are classified as skeletal muscles and are characterized by being located between each rib.
How to read external intercostal muscles
The external intercostal muscle is read as “gairokankin” in Japanese.
Characteristics of external intercostal muscles
The external intercostal muscles are elastic and expand the rib cage through contraction as muscles. This allows more air to be taken in to the lungs, which helps breathing.
Location and position of external intercostal muscles
The location of the external intercostal muscle is between the ribs, as described above. Specifically, it extends between the 1st and 12th ribs. By using a human anatomy chart, it is possible to accurately understand how the external intercostal muscles are arranged between the ribs.
How to memorize external intercostal muscles
When remembering external intercostal muscles, it is useful to understand what their name consists of. As the character “outside” indicates, the part located on the outside of the ribs called “intercostal” means that it is between the ribs.
English and Latin for external intercostal muscle
The English notation for external intercostal muscle is external intercostal muscle, and it is expressed as Musculi intercostales externi in Latin.
Trivia about external intercostal muscles
The external intercostal muscle is one of the muscles that weakens little due to aging, and it is said that it is relatively easy for the elderly to maintain function.
Tissues associated with external intercostal muscles: characteristics of ribs
The ribs are an important component in the structure of the chest, and mainly play a role in protecting the chest and supporting internal organs (heart, lungs, etc.). The human chest usually has 12 pairs of ribs, each connecting to the thoracic vertebrae and sternum. The ribs vary according to their shape and are both flexible and elastic, which allows the rib cage to expand and contract during breathing.
The external intercostal muscles are located between these ribs and actively contribute to the breathing process by helping lift the ribs and expand the rib cage. The ribs and external intercostal muscles work closely together for effective breathing.
Tissues associated with external intercostal muscles: location and position of ribs
The ribs are connected to the thoracic spine on the back side, and on the front side, in the case of true ribs, they are arranged directly to the sternum, and the false ribs and floating ribs are not connected indirectly or at all. The upper ribs are relatively short and lengthen as they progress downward, and the last 2 pairs of ribs (floating ribs) do not connect forward.
Due to this arrangement, the ribs are easy to move and are easily lifted by contraction of respiratory muscles, including external intercostal muscles. This increases space for introducing air into the lungs and promoting efficient gas exchange.
Tissues associated with external intercostal muscles: rib trivia
There are several interesting facts about ribs. For example, most people have 12 pairs of ribs, but rarely do people have 13 pairs of ribs. This phenomenon is due to genetic mutations and does not have a particularly negative impact on health.
Also, ribs tend to lose elasticity with age, and ribs can break easily, especially in the elderly. However, with proper exercises and activities, it is possible to maintain bone density and keep ribs healthy.
The relationship between ribs and external intercostal muscles is important for accurately understanding breathing mechanisms. Understanding how these structures work together can provide insight into how to breathe efficiently and maintain respiratory health.
White line quiz and correct answers
Q1.How many ribs is the external intercostal muscle located between?
Correct answer: The external intercostal muscles are located between the 1st and 12th ribs, that is, between the 12 ribs.
summary
This time, I explained the location and location of the “external intercostal muscle”, how to memorize it, and the English/Latin notation.
How was it?
I would be happy if reading this article deepened my understanding of anatomy.
Learning is a long, never-ending journey, but I sincerely wish you all the best. Let's continue to study together and work hard for the national exam!
Please look forward to the next blog.
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