What Is a Squint?
What Is a Squint? A squint, or strabismus, is the name given to a condition in which both eyes do not point in the same direction. Whilst one eye looks straight ahead,...
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Why Do We Vaccinate Against Smallpox?
Why Do We Vaccinate Against Smallpox? We vaccinate against smallpox to allow the body to develop antibodies which will make it more or less immune to attack from the...
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What’s the Difference Between Baking Soda and Baking Powder?
What’s the Difference Between Baking Soda and Baking Powder? Both baking soda and baking powder contain sodium bicarbonate. Baking soda is pure sodium...
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When Was Aspirin First Used?
Aspirin was first introduced into medicine in 1899 by H. Dreser of Germany. The word aspirin is actually the trade name for a preparation of acetylsalicylic acid....
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How Thick Is the Average Human Skull?
How Thick Is the Average Human Skull? The thickness of the average human skull, or that part of the skull called the cranium that encloses the brain, is a quarter of an...
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When Do Gallstones Occur Most Often?
When Do Gallstones Occur Most Often? Gallstones occur most often in women who are overweight and have had children, for in the late stages of pregnancy cholesterol,...
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What Are Our Eyes Made Of?
What Are Our Eyes Made Of? The outer shell of the eyeball is made up of three coats: the fibrous tunic, composes of the cornea and sclera. The middle layer, known as...
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Who Discovered the Body’s Reflex Actions?
Who Discovered the Body’s Reflex Actions? The theory explaining the body’s reflex, or involuntary, actions was formulated by Marshall Hall (1790—1857), an English...
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What Is Skin?
What Is Skin? Apart from protecting our body, skin is a vital element in our physical make-up and well-being. It helps to regularize our body temperature and enables us...
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Where Is the Cervix?
Where Is the Cervix? The cervix or cervix uteri (Latin: neck of the uterus) is the lower part of the uterus in the human female reproductive system, the name doctors...
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