02/10/2020
*Interesting facts about muscles you probably didn’t know.
-The word muscle is derived from the Latin term musculus, meaning "little mouse". This Latin term could be due to the shape of some muscles or because muscles contracting under the skin can look like a mouse moving under a rug.
-The muscular system is what allows your body to move. Muscles are necessary for little movements, like smiling, and for big movements, such as running or throwing.
-Some muscles you control, like your bicep when you’re lifting something heavy. Other muscles, such as those that help you breathe, move without you thinking at all.
1- Your body contains more than 600 muscles.
2- The largest muscle in the body is the gluteus maximus.
3- The smallest muscles in the body are in your inner ear. They include the tensor tympani and the stapedius.
4- The strongest muscle, based on its size, is the masseter. It’s a muscle in your jaw. It can close your teeth with a force as great as 200 pounds on your molars.
5- Muscles make up about 40 percent of your total body weight.
6- The hardest working muscle in the body is the heart. On an average day, it pumps about 2,500 gallons of blood.
7- Some of your busiest muscles are those controlling eye movements. These muscles are constantly making adjustments as you read, watch TV, or look around you. In an hour of reading, your eyes may make as many as 10,000 coordinated movements.
8- Most of the heat produced in your body comes from muscle contraction. Muscle movement counts for almost 85 percent of the total heat produced inside the body.
9- The motor cortex on the right side of your brain controls the muscles on the left side of the body, while the motor cortex on the left side controls the muscles on your right side.