How Your Body Works: 1 (Children's World)

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Each of these senses is associated with its own organ (taste with the tongue, smell with the nose) or sensory receptor (the skin contains separate touch, temperature, and pain receptors). 7. Our appendix does actually still have a purpose Alcohol is a diuretic and increases urine production. When you drink alcohol, you need to urinate more often. This causes thirst and dehydration. Lungs In the brain…The smell of food triggers your brain, which sends a message to your gut to prepare for a meal. The gut then starts producing digestive juices and enzymes to transform the food into usable molecules for the body. Yes, I've watched Jurassic Park way too many times.) 4. Our immune system fights off infection mostly through the use of antibodies and microphages The eyelid also has great reflexes, which are automatic body responses, that protect the eye. When you step into bright light, for example, the eyelids squeeze together tightly to protect your eyes until they can adjust to the light. And if you flutter your fingers close (but not too close!) to your friend's eyes, you'll be sure to see your friend's eyes blink. Your friend's eyelids shut automatically to protect the eye from possible danger. And speaking of fluttering, don't forget eyelashes. They work with the eyelids to keep dirt and other unwanted stuff out of your eyes. What's the Sclera?

13 Questions About How the Human Body Works Answered 13 Questions About How the Human Body Works Answered

Your eyes sometimes make more tear fluid than normal to protect themselves. This may have happened to you if you've been poked in the eye, if you've been in a dusty or smoking area, or if you've been near someone who's cutting onions.

The respiratory system facilitates breathing; more specifically, the intake of oxygen and expulsion of carbon dioxide.

Lift the Flap How Your Body Works | Usborne | Be Curious Lift the Flap How Your Body Works | Usborne | Be Curious

How do people breathe in and out? What’s the body’s biggest organ? What causes a bruise? This list answers these questions and others about how the human body works. Many scientists today think that yawning is a way to keep our brains alert in times of stress or fatigue, but exactly why that happens or what the yawn does to help our body isn’t 100% clear. Some think it's to oxygenate the brain (through the sudden, deep inhale of breath) or to reboot and re-engage. If you can't see near or far objects, your eyeballs are shaped weird, which, while an expensive problem to have, makes you special (just like everybody else who has to wear eyeglasses). You can get proteins from either plant or animal sources. Proteins are necessary to rebuild muscle and organ tissues, as well as to provide energy. The muscles, glands, and organs are mostly made from proteins and various minerals. Like the brain, they require sugar to function, as well as amino acids, fluids, and electrolytes. SugarNeither man nor machine can function without fuel! We need a variety of healthy fuel sources to move, think, repair, and regenerate.

What happens when you drink alcohol | nidirect

Sunlight is necessary for bone, immune, and nervous system health. When your skin is exposed to sunlight, it produces vitamin D3. This vitamin is crucial for maintaining strong bones and a resilient immune system. The endocrine system produces hormones that regulate metabolism, growth and development, tissue function, sexual reproduction, sleep, and mood.The muscular system facilitates movements of our bodies, from reaching for the remote control to smashing out an intense workout in the boxing ring. Wear sunglasses. Too much light can damage your eyes and cause vision problems later in life. For instance, a lens could get cloudy, causing a cataract. A cataract prevents light from reaching the retina and makes it difficult to see. The anterior (say: AN-teer-ee-ur) chamber is the space between the cornea and the iris. This space is filled with a special transparent fluid that nourishes the eye and keeps it healthy. What's the Lens?