Basline Data Body Systems

  • June 2020
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Skeletal System

Digestive System

-A skeleton is the base that holds up a body. Every thing has it (buildings). -An exoskeleton is a skeleton in the outside of a body. It is usually on animals and insects. -An endoskeleton is a skeleton in the inside. Humans have it. -Skeletons need the muscles to move and vice-versa. -The smallest and lightest bone is in the ear-Its smaller than a grain of rice. -When you’re a baby, you have about 300 bones. When you’re an adult, you have about 206 bones since some bones join together. -You have over 300 muscles in your body. -The skeleton protects the important body parts like the heart, lungs, brain, etc. -The brain sends electrical currents to the bones that makes it move. -The average person has at least 12 ribs. Some people have one less or more. -The skeleton weights one-fifth of your body weight. -Insects need to shed their exoskeleton in order to grow. -Invertabrits are animals that have no backbone. -ertabrits are animals that have one.

-The digestive system is the system on where the food ends up when you eat it. It also includes the places that the food goes.

Nervous System

-The nerous system is the cells in your brain that makes you nervous in certain situations. -There are some points in your body that once touched or pressed, will hurt just like in acupuncture.

Puberty

-Puberty is when the hormones in the body changes. -When a person goes into puberty, their skin gets oily causing them to have warts and pimples. -In puberty, a boy’s voice will go deeper. -In pubery, a person will grow hair in certain places… -.-It is okay for a girl’s breast to be bigger than the other. It is also okay for the boy’s testicles. -Semen is the combination of sperm and other chemicals. -Sperm is created in 70 days.

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