Body Systems 1
The system that breaks down food for cells to use.....
Digestive system
Organ system that captures oxygen from the atmosphere...
Respiratory system
Organ system that gives your body structure and allows for movement
Skeletal system
Organ system that controls movement of muscles, senses like sight and sound, and the body's reaction to any stimulus.
Nervous system
The basic building blocks of all living organisms
cells
We breathe in ________.
We breathe out __________.
Oxygen
Carbon Dioxide
What is the function of the circulatory system?
to transport nutrients throughout the body via blood
Eyes, Spinal Cord, and Brain are all part of the
Nervous
What is the major organ of the respiratory System
What are white blood cells?
White blood cells are responsible for fighting off infections and protecting the body from harmful invaders.
Which body system is most important?
it was a trick! all of them work together to keep our body balanced and healthy!
What is the largest organ of the body?
Skin
What organs make up the circulatory system?
Organ that contains acid and breaks food down
Stomach
Millions of cells that work and connect together create .......
Tissue
What body system controls the hormones in your body?
BONUS 100: What is the hormone that is released during fight or flight?
Endocrine System.
BONUS: Adrenaline
What if… your immune system couldn’t recognize harmful germs?
If your immune system couldn’t recognize harmful germs, your body would have a much harder time fighting off infections! The immune system uses special cells and proteins to detect and attack invaders like bacteria, viruses, and fungi. If it couldn’t identify these threats, you might get sick more often and your body might struggle to heal. That’s why vaccines help train your immune system to recognize and fight specific germs, keeping you healthier! 🦠🛡️💉
What is the main function of the human reproductive system?
To produce offspring so humans can continue as a species.
Lungs and gills ALL may classified as organ of which system
Respiratory System
A waste gas that is transported in veins from the body to the lungs via the heart
carbon dioxide
These two systems work together to enable us to move
muscular and skeletal
(muscles and skeleton)
Digestion begins here
The mouth
What if… your brain couldn’t send signals to your muscles?
If your brain couldn’t send signals to your muscles, you wouldn’t be able to move! The nervous system works like a messaging system, sending signals from your brain through your spinal cord and nerves to tell your muscles what to do. Without these signals, even simple tasks like walking, talking, or picking something up would be impossible. This is why conditions like paralysis, where nerve signals can’t reach muscles, can have such a big impact on movement! 🧠💡🦵
The excretory system is responsible for:
The excretory system is responsible for removing waste from the human body.
What if… your heart stopped beating for 10 seconds?
If your heart stopped beating for 10 seconds, your brain wouldn’t get enough oxygen-rich blood, and you’d likely pass out! Your body relies on a constant flow of oxygen and nutrients, and without it, cells begin to shut down. If the heart doesn’t restart quickly, serious damage can happen. This is why CPR and defibrillators are used in emergencies—to help restart the heart and keep blood flowing until medical help arrives! 🚑💓
What if… your lungs were filled with water instead of air?
Your lungs are designed to take in oxygen from the air, not liquid! If they filled with water, you wouldn’t be able to get the oxygen your body needs, and you would start suffocating. This is what happens during drowning. However, some animals, like fish, have gills that allow them to extract oxygen from water. Humans don’t have gills, so we rely on our lungs and the air around us to breathe! 🫁💨🐠
How is your nervous system similar to the nucleus in a cell?
Both are in charge and tell the body/cells what to do.
What if… you had no small intestine?
Without your small intestine, your body wouldn’t be able to absorb most of the nutrients from the food you eat! The small intestine is where important nutrients like vitamins, proteins, and fats get absorbed into your bloodstream. Without it, even if you ate a lot, your body wouldn’t get the fuel it needs to grow and function properly. That’s why people with severe small intestine problems may need special diets or medical treatments to stay healthy! 🥗🔬💪
What two systems work together to deliver oxygen to cells throughout the body?
Respiratory and Circulatory
The skeletal system works with which other two systems for a human to move their legs
Muscular and Nervous system
What is the immune system?
This part of the immune system produces antibodies to help fight infections.
What are hormones? Give one example of a hormone
These are chemicals that travel through your bloodstream to help regulate functions like growth, mood, and energy.
Testosterone, Estrogen, Insulin, Adrenaline
What are neurons?
These cells carry electrical signals throughout the body, allowing communication between the brain and other parts of the body.
What is negative feedback?
This type of feedback loop works to bring the body back to a stable state, like regulating body temperature.
How are antibodies different from antigens?
Antigens are like invaders that trigger an immune response, while antibodies are the body's soldiers that fight and destroy those invaders.
What is organ rejection?
This is the term for when the body’s immune system attacks a transplanted organ, rejecting it.