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"At Disney, we don't look backwards for very long. We keep moving forward, opening up new doors and doing new things, because we're curious...and curiosity keeps leading us down new paths.” -Walt Disney World
Did you know there are 78 organs in the human body? These organs are organized into eleven different groups called organ systems.
What do you know about the human body?
_____ are main organs in the musculoskeletal system.
Muscles
Nerves
Sensory organs
Veins
_____ are a main organ in the respiratory system.
Arteries
Lungs
Bones
Intestines
The _____ is a main organ in the nervous system.
brain
heart
stomach
kidney
The _____ is a main organ in the digestive system.
heart
brain
diaphragm
stomach
The _____ is a main organ in the circulatory system.
kidney
brain
heart
bone
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Develop Reasoning: The Human Body
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You've successfully identified claims supported by evidence. Now, let's delve into developing reasoning for these claims. Remember, reasoning is the explanation connecting the evidence to the claim. To understand why diet, physical activity, and social interactions contribute to longer, healthier lives, we need to understand how the human body works and how it stays alive. Click on the attached folder to learn about the structure and function of five organ systems found in the human body. As you go through this folder, record information in your Mission Log and start to think about how diet, physical activity, and social interactions might impact each. When you're finished going through the folder, send me a message on our Innovation Zone Chat to let me know your thoughts! best, Dr. Carter
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Human Organ Systems Review
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Unlocking the Mysteries Within
A Journey Through Human Organ Systems
The musculoskeletal system, which includes our bones, muscles, and joints, plays a crucial role in helping us move and stay strong. Imagine it as the framework and engine of our body. Bones provide structure and support, like the frame of a house, while muscles work like the engine, allowing us to move and do different activities. Joints, where bones connect, act like hinges, allowing our limbs to bend and move smoothly. When we run, jump, play sports, or even just walk, it's our musculoskeletal system working together to make it all happen.
Fun fact...
There are 206 bones in the adult human body.
The respiratory system is like our body's own air delivery system, helping us breathe and get the oxygen we need. It involves several parts, including the nose, trachea, diaphragm and lungs. When we breathe in through our nose, the air travels down the trachea and into the lungs. The lungs are like spongy balloons that expand and contract, allowing us to take in fresh air and get rid of the used air. Inside the lungs, tiny air sacs called alveoli grab the oxygen from the air and pass it into our blood, while at the same time, they take away the waste gas called carbon dioxide.
Fun fact...
The lungs are the only organ that can float on water.
The nervous system is our body's communication network, helping us think, move, and feel. It includes our brain, spinal cord, nerves, and sensory organs. The brain is responsible for thinking and coordinating everything we do. The spinal cord acts as a messenger, connecting the brain to the nerves throughout our body. Nerves carry signals between the brain and different body parts. Our sensory organs, like our eyes and ears, help us see, hear, and experience the world around us. So, when we touch something hot, our nerves send a quick message to our brain, telling it to move our hand away.
Fun fact...
Our brains are not fully formed until we are 25-years-old.
The digestive system plays a crucial role in breaking down the food we eat. It begins in the mouth, where chewing and saliva kickstart the digestive process. From there, the food travels down the esophagus to the stomach, where powerful enzymes and acids further break it down into a semi-liquid substance called chyme. Moving into the small intestine, nutrients are absorbed into the bloodstream, while the remaining material continues to the large intestine for water absorption, forming waste. The liver, gallbladder, and pancreas contribute bile and digestive enzymes, ensuring the body gets the necessary energy and nutrients from ingested food.
Fun fact...
The small intestine is about 22-23 feet long, and the large instestine is about 5 feet long.
The circulatory system, often compared to a transportation system, is like a network of roads and vehicles. At the center of it is the heart, our powerful pump. Imagine it as the engine in a car, pushing blood through the body. Blood vessels, like highways, carry this blood to every part of our body, delivering essential nutrients and oxygen. The arteries act as expressways, taking blood away from the heart, while the veins are like return routes bringing blood back. Capillaries, tiny roads, connect arteries and veins, allowing for the exchange of nutrients and oxygen with cells.
Fun fact...
The circulatory system stretches 66,000 miles.