Latissimus dorsi

Musculus latissimus dorsi

The broadest muscle of the back, forming part of the posterior axillary fold. It originates from the spinous processes of T7-T12, thoracolumbar fascia, iliac crest, and lower three ribs. It inserts on the floor of the intertubercular sulcus of the humerus.

النوع Muscle
جهاز الجسم Muscular
منطقة الجسم Back
الاسم اللاتيني Musculus latissimus dorsi
FMA ID 13357

الوظيفة

Extends, adducts, and medially rotates the arm at the shoulder. A powerful climbing muscle. Also assists in forced expiration (coughing, sneezing) and trunk lateral flexion.

الأهمية السريرية

The latissimus dorsi is used in breast reconstruction and thoracic wall reconstruction. It is the main muscle used in swimming and rowing, susceptible to strain injuries. Thoracodorsal nerve injury causes weakness of arm adduction.

الأسئلة الشائعة

What is the Latissimus dorsi?
The broadest muscle of the back, forming part of the posterior axillary fold. It originates from the spinous processes of T7-T12, thoracolumbar fascia, iliac crest, and lower three ribs. It inserts on the floor of the intertubercular sulcus of the humerus.
What is the function of the Latissimus dorsi?
Extends, adducts, and medially rotates the arm at the shoulder. A powerful climbing muscle. Also assists in forced expiration (coughing, sneezing) and trunk lateral flexion.
What body system is the Latissimus dorsi part of?
The Latissimus dorsi is part of the Muscular.
What conditions affect the Latissimus dorsi?
The latissimus dorsi is used in breast reconstruction and thoracic wall reconstruction. It is the main muscle used in swimming and rowing, susceptible to strain injuries. Thoracodorsal nerve injury causes weakness of arm adduction.
Where is the Latissimus dorsi located?
The Latissimus dorsi is located in the Back region of the body.

البنى ذات الصلة

musculature muscle group tendon sheath synovial tendon sheath skeletal system set of all bones and joints orbital septum septum orbitale iliopsoas Hyrtl's muscle myocardium cardiac muscle conducting system of heart cardiac conducting system long head of biceps brachii capus longum of biceps brachii

إخلاء المسؤولية الطبية

هذا المحتوى لأغراض تعليمية وإعلامية فقط. لا يُقصد به أن يكون بديلاً عن المشورة الطبية المهنية أو التشخيص أو العلاج. استشر دائماً طبيبك أو مزود الرعاية الصحية المؤهل الآخر بشأن أي أسئلة قد تكون لديك بخصوص حالة طبية. لا تتجاهل أبداً المشورة الطبية المهنية أو تتأخر في طلبها بسبب شيء قرأته على هذا الموقع.