Muscles Are th Engine of the Body

First, electrical signals, action potentials propagate along nerve cells and release chemical messages called neurotransmitters that enter small interstices between nerve cells and muscle cells. This gap is called a synapse. Chemical information and neurotransmitters attach to proteins called receptors on muscle cell membranes through gaps, produce electrical signals in muscle cells, and bring action potentials. The potentially acting chemical signal travels rapidly along the muscle cell and enters the cell through the T-tube. Opening the door for calcium storage of chemical signals, action potentials, muscle is also called sarcoplasmic reticulum. Calcium ion flows in

Muscles are very important to the body. Muscle will also greatly help your body. They pump blood into your body, they can help you lift heavy objects, and most importantly they can help you with your body. Muscles are body tissues that can contract and produce movement (Merriam-Webster Dictionary). Muscle is like a body engine, it transforms energy into motion. Muscle muscles are not as important as muscles, but they are very good for the body. Muscle strength, like muscle tension, is indispensable for physical health (Difference Between.net. June 2, 2010). Muscle strength is the ability to add power to men using muscles.

There are three kinds of muscles in our body: skeletal muscles which are myocardium, smooth muscle which is the involuntary muscle of the heart, involuntary muscle of other parts of the body, and independent muscles which control the movement of the body. All three muscle types basically function in the same way, they contract and shorten, approaching what is attached. Muscles only work when contracted. When they are asked to retreat and to relax, they actively push things away. By using tendons to attach to specific locations of the bones, the muscles form relative muscle pairs throughout the body. These muscles use bone bone as a lever arm and control various special movements.

Skeletal muscle is a soft tissue that most people think when thinking about the muscles of the body. It is a soft tissue that is fixed to the bone by a tendon and allows the body to move. The skeletal muscle is striped and contains a bundle of muscles, the basic unit of muscle. There are about 639 skeletal muscles in the human body. Smooth muscles are unconscious muscles in body organs that can be manipulated without conscious control. Smooth muscles are in the esophagus, stomach, intestine, uterus, urethra, bladder, bronchus, blood vessels and upright pili, which are connected to hair follicles and form "goose bumps" when contracted.