Longissimus Dorsi Muscle: Translation and Anatomy

'背最长肌' in English is 'Longissimus Dorsi muscle.' This muscle is located in the back and plays a crucial role in movement and posture.

Anatomy:

The Longissimus Dorsi muscle is a long, narrow muscle that runs along the length of the spine. It originates from the transverse processes of the lumbar vertebrae and inserts into the ribs and the mastoid process of the temporal bone.

Function:

The Longissimus Dorsi muscle is responsible for:

Extending the spine: This allows you to stand up straight and bend backward.
Rotating the spine: This allows you to twist your torso.
Lateral flexion of the spine: This allows you to bend to the side.

Common Issues:

The Longissimus Dorsi muscle can be affected by various conditions, including:

Back pain: This is a common issue that can be caused by overuse, injury, or poor posture.
Muscle strain: This can occur from sudden movements or heavy lifting.
Spinal stenosis: This condition occurs when the spinal canal narrows, which can put pressure on the Longissimus Dorsi muscle.

Treatment:

Treatment for Longissimus Dorsi muscle issues may include:

Rest: Avoiding activities that aggravate the pain.
Ice therapy: Applying ice packs to reduce inflammation.
Physical therapy: Exercises to strengthen the back muscles and improve flexibility.
Medication: Pain relievers and muscle relaxants.
Surgery: In rare cases, surgery may be necessary to relieve pressure on the Longissimus Dorsi muscle.