Sternocleidomastoid and Breathing *EXPLAINED*

What is the Sternocleidomastoid? This video covers the medical definition and provides a brief overview of this topic.
💥Accessory Muscles of Breathing [Full Guide] ➜ ➜ ➜ bit.ly/48akFJd
💥Respiratory Therapy Definitions [Glossary] ➜ ➜ ➜ bit.ly/3g6s4Pj
➡️ Sternocleidomastoid
The sternocleidomastoid is a key muscle in the human body, playing a significant role in various functions, including breathing. This muscle is uniquely positioned in the neck and is one of the most superficial and prominent structures in this area, making it easily identifiable. The sternocleidomastoid is a paired muscle present on each side of the neck. It originates from two distinct points: the manubrium of the sternum and the clavicle. It extends diagonally across the neck to insert at the mastoid process of the temporal bone and the superior nuchal line of the occipital bone.
➡️ Function
The primary function of this muscle is related to head and neck movements. When one side of the muscle contracts, it causes the head to tilt towards the same side and rotate towards the opposite side. When both muscles contract simultaneously, they flex the neck forward. The sternocleidomastoid also assists in elevating the sternum and clavicle, a movement that becomes particularly relevant in the context of breathing. While it's not primarily a respiratory muscle, it does play a supportive role in the breathing process, especially during labored or deep breathing.
During normal, relaxed breathing, the primary muscles involved are the diaphragm and the intercostal muscles. However, during deep breathing, such as during vigorous exercise or respiratory distress, accessory muscles of respiration, including the sternocleidomastoid, come into play. In such scenarios, this muscle assists in elevating the sternum and clavicle, thereby increasing the volume of the thoracic cavity.
This elevation allows for a greater expansion of the lungs, facilitating deeper inhalation. By increasing the chest volume, the sternocleidomastoid helps lower the internal pressure relative to the atmosphere, enabling air to flow into the lungs more efficiently.
➡️ Role During Breathing
Understanding the role of this muscle during breathing is crucial in clinical settings. Conditions such as COPD or asthma exacerbations often cause patients to use their sternocleidomastoid and other accessory muscles to aid in breathing. Visible use of this muscle during breathing can be a sign of respiratory distress and may require medical attention. This muscle is involved in certain medical conditions like torticollis, where the muscle contracts abnormally, causing neck pain and an awkward head position. This can indirectly affect breathing due to discomfort and restricted movement.
💥Accessory Muscles of Breathing [Full Guide] ➜ ➜ ➜ bit.ly/48akFJd
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🚑MEDICAL DISCLAIMER
This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time.
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⏰TIMESTAMPS
0:00 - Intro
0:26 - Sternocleidomastoid
0:44 - Primary Function
1:02 - Assist
2:03 - Role
2:44 - Sternocleidomastoid Muscle
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#breathing #breathingmuscles #sternocleidomastoid

[@RespiratoryTherapyZone]

💥Accessory Muscles of Breathing [Full Guide] ➜ ➜ ➜ bit.ly/48akFJd

[@heidibee501]

It's important for our health to have an understanding of our own physiology and anatomy, so that when we describe our symptoms to a doctor we can do it intelligently.

[@kvmalley]

@heidibee501 we can never know TOO MUCH! The more we know the better we can help advocate for ourselves, especially in this day and age!

[@R4L1960]

Great info 👍🏻😊