Three types of muscles By: Joel
- Cardiac Muscle- as you can tell by the name these muscles are found around the heart. These muscles are involuntary meaning they move without you thinking about it. Some are also auto-rhythmic meaning they contract even when there's no neurological connection. There are interlocking disks located around the heart and are responsible for synchronizing of the heart contracting. They do this by communicating to the other cells and the disks receive this electric pulse, then the disks send this message to the other cells and thus synchronizing muscle contraction.
- Skeletal Muscle- as with this one you can tell these muscles have something to do with your bones. These muscles pull on your bones but can never push on them. A muscle contains fibers, and in these fibers there are myofibrils which are cylinders of proteins.These proteins allow a muscle to contract and move. They are found where your limbs move such as your legs,arms,neck,and writs's. Thy are moved voluntary meaning you have complete control over their actions.
- Smooth Muscle- These muscles are responsible for movement of hollow organs such as the stomach,blood vessels, and your bladder. This type of muscle can produce a force as strong as a skeletal muscle but at a fraction of the contraction speed. These muscles help dilate your pupils, help your lungs expand and deflate, these muscles are involuntary.
Three interesting facts
Muscles make up about 50% of your body weight.
There are over 700 named muscles.
The strongest muscle in your body is your tongue. Not only does it taste but it also is on the outside of your body and is able to stand many different foods that are put in your mouth and renders speech.
Three Disorders
Cramps are due to nerve malfunctions, because of dehydration, spinal injuries, overworking a muscle, lack of correct minerals, or not enough blood getting to that muscle.
Sprains are an over stretched muscle or torn ligament, there most commonly found on wrists' and ankles.
The most common lazy eye disorder is Strabismic. This occurs when the eye muscles are imbalanced and uncoordinated with each other.