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The latissimus dorsi, to use the muscles' proper name, are the wide, fan-shaped muscles that make up the majority of your mid-back. The lats are especially consequential for several reasons.
Latissimus dorsi: Patient pushes the ipsilateral arm into adduction against resistance. 12: Quadratus Lumborum: Patient pushes the ipsilateral arm into adduction ...
The "lat" sometimes added before "pull-down" commonly refers to the latissimus dorsi used in the movement. Most exercises describe the muscle that is involved and the direction of the exercise e.g. biceps curl, triceps extension, leg press, hamstring curl, abdominal curl and so on.
The axillary arch is an arch-shaped anatomical variant of the latissimus dorsi muscle of the human back. [6] [7] Its shape varies, but its defining characteristics are its origin from the latissimus dorsi muscle, its insertion close to or on the upper anterior part of the humerus, and that it crosses the neurovascular bundle associated with the axillary nerve from dorsomedial to ventrolateral. [6]
The latissimus dorsi is a potential source of muscle for breast reconstruction surgery after mastectomy (e.g., Mannu flap) [12] or to correct pectoral hypoplastic defects such as Poland's syndrome. [13] [14] An absent or hypoplastic latissimus dorsi can be one of the associated symptoms of Poland's syndrome. [15] [16]
The thoracolumbar fascia is thought to be involved in load transfer between the trunk and limb (it is tensioned by the action of the latissimus dorsi muscle, gluteus maximus muscle, and the hamstring muscles), and lifting. [1]: 814–815 It is endowed with nociceptive receptors, and may be involved in some forms of back pain. [1]: 814–815
Other long muscles such as pectoralis major, latissimus dorsi, teres major and deltoid muscles also provide support to the shoulder joint. [4] The tendons of the rotator cuff and their respective muscles (supraspinatus muscle, infraspinatus, teres minor, and subscapularis) stabilize and fix the joint. [4]
2. You’ve suffered a head or neck injury. A head or neck injury from a car crash, fall, or accident can become even more distressing when a buzzing in your ears emerges afterwards, says Palmer.