What are the dangers of low skeletal muscle?

From a clinical perspective, low skeletal muscle mass is a common disease. If it is not treated correctly, it will bring many hazards. First, it will aggravate the degree of aging of the body, reduce resistance, immune function, and make people feel tired. Finally, the bones will become more fragile and the chance of fracture will be greatly increased, which will seriously threaten the patient's physical and mental health. Therefore, it must be taken seriously.

1. The harm of low skeletal muscle

1. The body ages quickly, the basal metabolism decreases, the skin becomes loose, fat accumulates easily, resistance and immunity decrease, muscle endurance, the core of the body is relatively weak, and fatigue is easy to occur.

2. The lumbar and cervical vertebrae are not protected, and the chances of suffering from lumbar muscle strain and shoulder and neck strain are higher. The body posture is hunched, hunched, and the winged scapula compresses the surrounding nerves and blood vessels. Middle-aged people are prone to osteoporosis and fractures.

2. Muscle structure and morphology

There are many muscles in the human body, but their basic structures are similar. A typical muscle can be divided into the belly in the middle and the tendons at both ends. The venter is the main part of the muscle, which is composed of bundles of striated muscle fibers. It is red, soft and has the ability to contract. Tendon tendo is cord-like or flat-band-like, composed of parallel collagen fiber bundles. It is white and shiny, but has no contraction ability. The tendon is attached to the bone and is firmly woven together with the periosteum. The belly and tendon of the broad muscle are membranous, and the tendon is called aponeurosis. The surface of the muscle belly is covered with a connective tissue outer membrane, which is fused with tendon tissue at both ends.

3. Principles of muscle naming

Muscles can be named according to their shape, size, location, origin and insertion, fiber direction and function. Some are named according to their morphology, such as the trapezius, rhomboids, deltoids, and piriformis; some are named according to their position, such as the subscapularis, supraspinatus, infraspinatus, and brachialis; some are named based on a combination of their position and size, such as the pectoralis major, pectoralis minor, and gluteus maximus; some are named according to their origin and insertion, such as the sternocleidomastoid and omohyoid muscles; some are named based on their fiber direction and location, such as the external oblique muscles and external intercostal muscles; some are named according to their function, such as the supinator and masseter; some are named based on their function combined with other factors, such as the pronator teres, adductor longus, and flexor digitorum superficialis. Understanding the naming principles of muscles will help you understand and remember them.