三角肌和肩袖之间的差异|比较类似术语之间的差异

Thekey difference三角肌和肌腱套之间deltoid cuff is a single muscle while the rotator cuff is a group of muscles and肌腱located in the shoulders.

deltoid cuff is a large muscle that consists of three muscle fibers. They are the anterior, posterior and intermediate muscle fibers. The rotary cuff is a muscle that consists of four muscles. They are supraspinatus muscle, infraspinatus muscle, teres minor muscle, and subscapularis muscle. Both deltoid cuff and rotator cuff play important roles in the rotation, abduction, and stability of shoulders.

内容

1.Overview and Key Difference
2.什么是三角肌袖口
3.What is Rotator Cuff
4.三角肌和肩袖之间的相似之处
5。Side by Side Comparison – Deltoid vs Rotator Cuff in Tabular Form
6。概括

什么是三角肌袖口?

deltoid cuff is a triangular muscle that forms the round contour of the shoulder. It consists of three muscle fibers. They are anterior or clavicular fibers, posterior or scapular fibers, and intermediate or acromial fibers. They are also known as anterior deltoids, posterior deltoids and lateral or medial deltoids, respectively. The deltoid cuff allows abduction and stabilization of shoulder joints. It also facilitates other movements and rotations of the shoulder. The anterior deltoids allow the pectoralis major to flex the shoulder. Pectoralis major is a thick muscle located in the chest. The anterior deltoid also works with subscapularis to rotate thehumerus。后三角肌允许伸展肩膀。肌肌肉和肌肉肌肉（在肩袖中）也与后三角肌一起用于伸展以及肩膀的旋转。旋转过程中侧三角肌进行肩部外展。

Key Difference - Deltoid vs Rotator Cuff

图01：三角肌袖口

deltoid cuff injuries are caused by wearing and tearing of muscles, fatty atrophy and enthesopathy. Deltoid cuff tears are usually caused by shoulder dislocation or rotator cuff tears. Fatty atrophy includes aging, disuse of shoulders, lack of necessary nutrients, andmuscular dystrophy。Enthesopathy is due to mechanical stress in the shoulders.

What is Rotator Cuff?

The rotator cuff is a group of muscles and tendons in the shoulder. These act as stabilizers in the shoulder. Rotator cuffs allow movements in the shoulders and maintain shoulder joint stability. Scapulohumeral muscles possess seven muscles that connect the humerus to the scapula. Out of these seven muscles, four muscles make up the rotator cuff. These include the supraspinatus muscle, infraspinatus muscle, teres minor muscle and the subscapularis muscle. All four muscles allow the function of rotation in the shoulders. These muscles begin from the scapula and connect to the head of the humerus. This forms a cuff at the shoulder joint. Thus, it performs multiple functions, including abduction, internal rotation and external rotation of the shoulders.

Figure 02: Rotator Cuff

肩袖损伤是由强迫拉动或高架运动引起的。这种伤害在运动员，举重运动员，橄榄球运动员，网球运动员，快速投球手和消防员中很常见。这会导致肌肉和肌腱的磨损。最常见的肌肉是肌上肌。

三角肌和肩袖之间有什么相似之处？

Deltoid cuff and rotator cuff are two muscles located in the shoulder.
They facilitate the stabilization, rotation, abduction, and other movements of the shoulder.

三角肌和肩袖有什么区别？

尽管两者都位于肩膀上，但三角肌袖带是一个肌肉，而肩袖由四个肌肉和肌腱组成。因此，这是三角肌和肩袖之间的关键区别。此外，三角肌袖口损伤通常是由肌肉，脂肪萎缩和肠病造成的。但是，肩袖受伤主要是由有力拉动运动或头顶运动引起的。

The below infographic summarizes the differences between deltoid and rotator cuff in tabular form.

摘要 - 三角肌与肩袖

deltoid cuff is a large triangular muscle that forms the round contour of the shoulder. The rotator cuff is a group of muscles and tendons in the shoulder. The deltoid cuff is a single muscle that consists of three types of muscle fibers while the rotator cuff is made up of four types of muscles of scapulohumeral muscles. Thus, this is the key difference between deltoid and rotator cuff. Both deltoid cuff and rotator cuff involve in the movement and the stability of shoulder joints. Both muscle injuries cause pain at the back of your shoulders, difficulty in lifting the arm and tightness in your shoulder. The prevention methods of such injuries are good rest, maintaining a good posture, stretching and minor exercises.

Reference:

1. Elzanie, A. (2020, August 22). Anatomy, shoulder and Upper LIMB, Deltoid Muscle. Retrieved May 08, 2021,Available here。
2. Hecht, M. (2019, November 26). Rotator cuff anatomy: Muscles, function, and pictures. Retrieved May 08, 2021,Available here。