What is the digestive system and how does it work?
By: Pratik Vaidya
One day I was sitting next to Anthony at lunch. Suddenly, I was mysteriously shrunk to microscopic size! Now I am on a slice of pepperoni pizza and am about to be eaten! As soon as Anthony smells, sees, or even thinks of food his...
How the kidneys work
By: Tarek Musslimani
The kidney is an indispensible organ in the body of healthy individuals. It is important although dialysis in end stage disease such as chronic renal failure can increase the life expectancy in affected individuals which are undergoing renal dialysis. The importance of the kidney stems...
The integumentary system explained
By: Tarek Musslimani
The skin, or as it is often called the integumetary system is composed histologically of two layers. These are the epidermis and the dermal layer. The epidermis is the most superficial layer of the skin. Deep to it is the dermis. The epidermis or the...
Anatomy of the human ulna
By: Erich Rosenberger M.D.
The human skeletal system is highly complex. It contains over 200 bones, almost all of which are vital to the ability to move about. Without a skeleton, you would mostly resemble a shapeless blob - which could be somewhat annoying. There are several important bones...
Muscles attached to the human ulna
By: Erich Rosenberger M.D.
The human skeletal system is amazingly complex. Even a structure as seemingly simple as your arm has quite a few bones, each of which can have a multitude of muscles attached to it. There are two primary bones in the human forearm, the radius and...
Brain Cognition Unconscious Consciousness Subconscious Dream Mind Scientific American Psycho
By: Jerges Cervantes
Sigmund Freud is perhaps best known for his research and analysis into what he coined the Ego, Superego, and Id(or instincts). In modern times it's more commonly referred to today as Consciousness, Sub-conscious, and Unconscious respectively. The misconception that a human only uses 10% of...
What are sinuses?
By: Joseph Gray - 558640
The sinuses are open air filled cavities in four areas of the facial bones and skull. They are found in pairs named for their location in the facial bones, and they open into the nose. Most people have four sets of sinuses, but some have...
Muscles attached to the human radius
By: Erich Rosenberger M.D.
Bones in the body serve several different functions. Many of them are responsible for making blood cells. But by far the most common function is simply to provide support for the organs and other parts of the body. Without a skeletal system, you wouldn't be...
Anatomy of the human humerus
By: Erich Rosenberger M.D.
The human humerous is an important bone in the arm. In fact, it is the primary bone in the upper arm, between the shoulder joint and the elbow. The humerous is a long bone with numerous muscles attached at various points. This article will take...
Ossification and clinical features of the human radius
By: Erich Rosenberger M.D.
The human skeletal system is an amazingly complex set of bones. Without these bones, you wouldn't be much more than a bag of water-filled cells - something like a land-based jellyfish. But bones are not merely hard structures to which muscles and other organs are...

 

1 55 56 57 58 59 94