Tears are water that come from our eyes. But, there are actually different types of tears: basal, emotional, and reflex. Basal tears keep your eyes from drying out. They supply nutrients and water to the outer parts of the eye. When there is dust, hair, or other debris in your eyes, basal tears flush them …
Category Archives: Human Body
What Is Cellular Respiration?
Cellular respiration is the set of chemical reactions that break down glucose from our food into ATP or andosine triphosphate. The ATP is energy for the body. Cellular respiration requires Oxygen and glucose to start the cycle. Cellular respiration takes place in the mitochondria or “powerhouse” of the cells. They take in the Oxygen and …
How Do We Breathe?
We breathe using our respiratory system and our lungs. Our lungs help humans breathe in Oxygen and breathe out Carbon dioxide. The lungs use tiny parts, called alveoli to help with this process. Alveoli, pronounced as alei-ve-oli, are tiny sacs inside of your lungs. They kind of look like grapes inside of your lungs! These …
Why Is REM Sleep Important?
REM Sleep or Rapid Eye Movement Sleep is a very important stage for human health. REM Sleep is the stage when your brain is active, dreams occur, and your eyes move back and forth rapidly under your eyelids. During this stage, your brain is very active! The brain organizes information it learned the past day in a …
How Does REM Sleep Affect Your Body?
REM Sleep or Rapid Eye Movement Sleep is a very important stage for human health. REM Sleep is the stage when your brain is active, dreams occur, and your eyes move back and forth rapidly under your eyelids. During this stage, your brain is very active! The brain organizes information it learned the past day in a …
Why Is Hair Important?
Hair is a strand of string protein that grows out of hair follicles or tiny sacs in your skin. Hair is made up of keratin, the same material your fingernails are made out of. Hair grows through a process of cells dividing and getting pushed out of the follicle. This causes a strand of cells …
What Are Cells?
Cells are the makeup of every living thing! There are two types of cells: plant and animal cells. We are going to talk about Cells in general. Cells make energy by getting Carbon in the form of sugar. Depending on the organism, it make it’s own food or eat food to survive. Cells also make …
Are There Different Types of Tears?
Yes! There are different types of tears. Tears are water that come from our eyes. But, there are actually different types of tears: basal, emotional, and reflex. Basal tears keep your eyes from drying out. They supply nutrients and water to the outer parts of the eye. When there is dust, hair, or other debris …
How Do We See Things And Know What Color They Are?
Let’s start with light. Light can be broken up into a few colors: red, orange, yellow, green, blue, indigo, and violet! When we see white light coming from the Sun or a lightbulb, that white light is all of the rainbow colors together. When the white light hits an object it reflections, or bounces of …
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What is Hair And Why Is It Important?
Hair is a strand of string protein that grows out of hair follicles or tiny sacs in your skin. Hair is made up of keratin, the same material your fingernails are made out of. Hair grows through a process of cells dividing and getting pushed out of the follicle. This causes a strand of cells …
Why Does Pollen Give Some People Allergies?
Pollen is a sticky substance that is found inside of most flowering plants. Pollen is in the middle of the flower of the plant. Pollen is attached to long structures called stamens and smaller structures called pistils. This pollen helps make new plants grow through a process called pollination. That is when pollen is transferred …
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How Do We Taste Things?
Taste is one of our 5 senses. It is how we think food tastes in our mouth. There are a few types of tastes: sweet, sour, bitter, salty, and savory (umami). We taste these using taste buds that contain different cells that taste each of these tastes that I mentioned earlier. Taste buds have these …
What Is The Nervous System?
The nervous system is the collection of all the nerves in your body and its function is to receive and send information on what’s going with the body. The nervous system includes your brain and spinal cord. Your brain and spinal cord are the centers where the information is being sent and received. Without the …
How Do SPG Nerves Cause Brain Freezes?
A brain freeze is an informal term for Sphenopalatine Ganglion Neuralgia. It is when the blood vessels in your brain expand to cause a headache! This is all caused SPG nerves. These nerves are at the back of your mouth and are very sensitive to cold foods like ice cream. SPG nerves or the sphenopalatine …
Why Do Onions Make Us Cry?
When we cut onions, they make us produce tears. The onion has developed this defense to defend it from predators that might try to eat it! Each tiny cell of an onion has a sealed blob within it containing a chemical the onion makes. This chemical is called an enzyme. Enzymes are very useful, natural …
What Are The 3 Types of Tears?
Tears are water that come from our eyes. But, there are actually different types of tears: basal, emotional, and reflex. Basal tears keep your eyes from drying out. They supply nutrients and water to the outer parts of the eye. When there is dust, hair, or other debris in your eyes, basal tears flush them …
How Does Hair Grow?
Hair is a strand of string protein that grows out of hair follicles or tiny sacs in your skin. Hair is made up of keratin, the same material your fingernails are made out of. Hair grows through a process of cells dividing and getting pushed out of the follicle. This causes a strand of cells …