The cranial nerves: Structure and function
By: Tarek Musslimani
There are 12 cranial nerves, which originate in the brain, in contrast to the 31 spinal nerves which originate in the spinal cord. The cranial nerves along with the spinal nerves are parts of the peripheral nervous system. Each cranial nerve has a distinct numbering...
The appendix: Is it a useless part of the human anatomy?
By: Jonnie Chastain
The human appendix serves no purpose. At least that is what we have been told by the medical community as far back as I can remember. If it causes a problem, have it surgically removed. You'll never miss it. So, just like approximately 1 in...
What is the digestive system and how does it work?
By: Erich Rosenberger M.D.
The digestive system is a complex set of organs that allows a person to consume and metabolize food. All of the organs of the digestive system must work in concert for food and nutrients to be broken down and transported to the millions of cells...
The cranial nerves: Structure and function
By: Erich Rosenberger M.D.
There are a few topics that are known to give medical students nightmares. The structure and function of the cranial nerves is one of those topics. There are twelve cranial nerves. They are named this because they all begin in the brain itself. They have...
The function of the kidneys
By: Norma Chew
The kidneys are two small bean shaped organs about the size of your fist located on either side of the spine below the rib cage. The proper functioning of these two organs is vital to your health and well being. What are the Functions...
The human sense of smell
By: Janet Farricelli CPDT-KA
Smells, aromas, perfumes, all reach our olfactory system under the form of volatile molecules. Such molecules are dispersed in the air and are invisible to our eyes. However, they effectively reach our nose and our brain through several neurons equipped with cilia that allows us...
Anatomy: Early human brain development
By: Emily McDowell
When I was in high school I took a psychology class in which we learned about the debate of Nature versus Nurture. At the time, it was unclear which one was the dominant factor in a person's development. Were intelligence level and emotional stability based...
Why the body needs sleep
By: Carole Somerville
What Happens when We Sleep and What is the Purpose of Sleep? Sleep and dreaming has fascinated man for centuries. Modern research has helped us understand sleep better. So what happens when we sleep and why does the body need sleep? Sleep Schedules Humans share...
By: Jon Clark
The human heart is a miracle of design and without doubt the strongest and most durable pump in existence. A human life span of 80 years at an average beat rate of 70 beats per minute would have a total of about 2 billion heart...
The science of anatomy defined
By: Darian Peters
Anatomy is the science of the structures that are present in living organisms and the functions that those structures perform. Anatomy has a role both in biology and medicine. There are a variety of different forms of anatomy including superficial anatomy, comparative anatomy, anthropological anatomy...

 

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