serratus magnus
Học thuậtThân thiện
Definition
Noun: * Serratus Magnus: A large, fan-shaped muscle of the chest wall. Its primary anatomical functions are to rotate the scapula (shoulder blade) forward and upward and to assist in elevating the rib cage during inhalation.
Usage
- This is a specific anatomical term used in medical, biological, and fitness contexts. It is not used in everyday conversation.
- It is often discussed in relation to shoulder movement, posture, and respiratory function.
Examples
- The serratus magnus is crucial for movements like punching or pushing.
- Weakness in the serratus magnus can lead to a condition known as "winged scapula."
- During a deep breath, the serratus magnus helps to lift the ribs.
Advanced Usage
- The term serratus magnus is considered a synonym for the more modern and precise anatomical term serratus anterior. In contemporary anatomy, serratus anterior is the preferred term.
Variants and Related Words
- Serratus Anterior (n): The modern anatomical term for .
- Serratus (n): A shorter, informal reference to the serratus anterior muscle, often used in fitness contexts (e.g., "develop your serratus").
- Serratus Posterior (n): A different, smaller muscle group located on the back, involved in rib movement during respiration.
Synonyms
- Serratus anterior
- Anterior serratus muscle
- Boxer's muscle (an informal nickname due to its importance in punching motions)
Related Phrases
- Winged scapula: A condition often associated with dysfunction or paralysis of the serratus magnus/anterior muscle.
- Scapular protraction: The forward movement of the shoulder blade, a primary action of the serratus magnus.
- Accessory muscle of respiration: A description of its secondary function in aiding inhalation.
Noun
- muscles that rotate the scapula and elevate the rib cage