The muscular system is made of muscles that move your bones and your body. Its function is to move all
your body parts. These are the body organs that you have control over. Also, it moves muscles of the
organs that you have no control over. For example - heart, intestines, diaphragm.
The human body contains over 600 muscles.
Muscular System
There are three types of muscles Skeletal - you can control them. They are called voluntary. Example - arms, face, abdomen
Cardiac - you have no control over it. It's called involuntary. Example - heart
Smooth - you have no control over them. They are also called involuntary. Example - intestines,
stomach
As you already know, your muscles are controlled by nervous system. All muscles have fibers and fibers
are triggered by neurons that cause fibers to get longer or get shorter. In another word - it contracts.
Muscles can only pull - they cannot push. Therefore - the muscles must work in pairs. For example when you flex your arm - your biceps get shorter and your triceps get longer. Now - when you want to
extend your arm - your triceps will get shorter and your biceps will get longer. So - they are simply
working together.
Skeletal System
The bones are hard - but they are spongy inside. The bones meet in the joints. The joints are the places
where bones meet and are connected by special connector tissues. There are four types of joints:
Hinge joint - example is the elbow and knee
Pivot joint - example is the neck
Ball and socket joint - example is the hip and shoulder
Gliding – example is the ankles and wrists
There are three types of connectors:
Cartilage - it's a tissue that covers ends of the bones and also supports ears and nose
Ligament - it's a tissue that connects bone to bone
Tendon - it's a tissue that connects the muscle to the bone
The skeletal system is the frame system of bones that is attached by tissues. Its functions are to:
Support the your body
Protect your internal organs
Produce red and white blood cells
Adults have 206 bones.
So - these two systems cannot exist without each other. They support and move your body. It's
important to have strong muscles and healthy muscles. Here are a few tips to achieve that Eat a healthy diet - bones need calcium and muscles need carbohydrates for energy and protein for
growth
Regular exercise - exercise is good but don't forget to warm up and cool down
Keep straight posture - it keeps joints in place and muscles in shape
Rest between exercise - allow your muscles to recover and get re-energized