The muscular system: anatomy and function

2021-02-13 12:00 AM

Engine movement occurs when nerve signals induce electrical changes in muscle cells, calcium is released into the cells and results in short muscle twitching.

Without muscles, humans cannot live. The muscle's main job is to move bones of the skeleton, but muscles also allow the heart to beat and form the walls of other vital hollow organs.

Mechanical system

There are three types of muscle tissue:

Skeletal muscle (bone): This muscle produces movement in the body. There are over 600 skeletal muscles and they make up about 40% of a person's body weight. When the nervous system signals the muscles to contract, the muscle groups work together to move the skeleton. These signals and movements are almost involuntary; however, they do require conscious effort. However, people do not need to focus on individual muscles while moving.

Cardiomyopathy: The heart muscle is an involuntary muscle. These form the walls of the heart and induce regular, rhythmic beats that pump blood through the body from signals from the brain. This type of muscle also produces electrical impulses that induce contractions of the heart, but hormones and stimuli from the nervous system can also influence these pulses, such as when the heart rate increases when you are afraid. fear.

Smooth muscles: Smooth muscles make up the walls of the hollow organs, airways, and blood vessels. Its wavelength movement pushes everything through the body system, such as food through the stomach or urine through the bladder. Like the heart muscle, smooth muscle is involuntary and also contracts in response to stimuli and nerve impulses.

Motor movement occurs when nerve signals induce electrical changes in muscle cells. During this process, calcium is released into the cells and results in short muscle twitching. Problems with the junctions between cells - known as synapses - can lead to neuromuscular diseases.

Muscle pain is a common problem that can signal many problems, even if it's something as simple as abuse. Some of the muscle disorders and problems that affect muscles include:

Muscle pain.

A sprain.

Bruising.

Cramp.

Myopathy.

Muscular dystrophy.

Parkinson disease.

Fibromyalgia.

Multiple sclerosis.

Proper nutrition and exercise are crucial to keeping all muscles healthy, whether they are heart, muscle, or bone.