Chapter 10 Human Functions
Parts of the human body function at different times and at different speed. Like all body part, they all need energy to stay longer in game so that’s when the chemical energy comes in. There are ten voluntary muscles in your body. Ten of the most common muscles are the elbows, shoulders, wrists, fingers, tendons, neck, knees, ankles and toes. One of the most majorly commonly known involuntary muscles is the heart. An involuntary muscle means that it will move even if you don’t want it to. Voluntary means that you’ll move something at you will. They’re all made of tissues, in fact, every cell and bone in your body is made of tissues. Muscles are very strong and can’t be broken in two. Well, they can still be pierced through but, there is no way they can be broken in two just like the bones. Bone are your most fragile protection of your entire body. Sure they protect your nervous system and circulatory system but that doesn’t mean they’re that strong. Once broken, muscles can’t be healed back into their previous form. Once they heal, they will always leave a crack of a scar. Scar tissues tend to be more sensitive than regular tissues. Bone however are different. When they heal, they tend to be stronger than their previous version rather than the muscles.
Your digestive system is also involuntary because it’s always at work even when you’re asleep. Almost every part of your body is involuntary. They’re all at work even when you’re asleep. Same goes for your brain. It stores all of the information you received in a day. It keeps them stored and locked away preventing them from escaping. Your lungs are also part of the involuntary community because it’s working very hard when you’re a rest. When you’re exercising, your heart and lungs tend to work harder because they ump blood as fast as they can into your body and pushes air back and forth through your nose and mouth. The human body is a map filled with wonderful mysteries. Your DNA is a blueprint for your body just like a computer. As you get older, your genetical structure or your genes change. When a child is born, he or she doesn’t always inherit all of the traits or their own parents. For example, your eyes can your mother’s eyes than your nose and hair can be from your father. Like I said, a child is a mix of traits both from the mother and father. Your skin, is also like a protection for your whole body. Like every part of your body, it can also be pierced by sharpened objects. When you get a cut, bacteria tend to get in the cut if it’s not cleaned and sealed quickly. Once that happens, you have a very 50 by 50% chance of getting sick. Some damages to the body can be very severe that it can’t be healed or even sealed properly. Some people tend to survive high chance of death. Like for example, when a person gets experimented on, he or she has a very small chance of surviving and a very high chance of death.
Blood is what keeps the human body moving aside from glucose. When you get a cut, blood is most likely to spill out before it gets sealed and hardened by platelets. Platelets are these small cells who come to the rescue whenever someone gets a cut. White blood cells are these huge star shaped cells who are every good at doing there job. They eat and destroy bacteria and viruses who dare take a step inside your body. Antibodies are these unique alarms for white blood cells. They send warnings for white blood cells and warn them that there are enemies coming in.
Chapter 11 Reproduction of cells
Cells reproduce or divide once your body reaches puberty. Once it reaches that stage, cells replicate and divide. Like I said before, cells come in different shapes and sizes. Neuron cells are very long because they send information your body receives and it gets sent to the brain to be analyze and confirmed what the object is. The cell division happens in every body of a living thing. whether it’s a mammal or not every animal and insect also have cell division inside their bodies. Cell divisions happen all the time. Even when you’re asleep it happens. Cell reproduction happens at different speed and time. Some are slower while others are faster.
Cells repair themselves whenever they get damaged. When a person dies, the blood flow or the cells tend to shut down because the whole body shuts down. Plant cells are just like human cells, they replicate and change.