Melatonin is a relatively safe supplement when used in the short-term, and melatonin side effects are uncommon. Melatonin safety in the long-term has not been determined in randomized, controlled studies. In general melatonin appears to be relatively nontoxic, even at higher doses such as 3 to 5 mg once a day.
Best Answer: During inspiration (breathing in) our external intercostal muscle contract and the internal intercostal muscle relax together with the movement of ribs and the thorax, this increases the volume of the throacic cavity.Air pressure in our lung decrease as the volume increases.ating Newest Oldest. Best Answer: During inspiration (breathing in) our external intercostal muscle contract and the internal intercostal muscle relax together with the movement of ribs and the thorax, this increases the volume of the throacic cavity. Air pressure in our lung decrease as the volume increases.
The intercostal muscles are located between the ribs. There are eleven intercostal muscles that are located on each side of the rib cage. They function to move and stabilize the chest wall. Intercostal muscles connect one rib to another and aid in breathing by expanding and contracting the ribs effectively.ntercostal muscles play a vital role in the movement of the ribs. When the muscles contract, the ribs move up, and when the muscles relax, they moves down. When breathing, these muscles force air in and out of the chest.