Bodies at rest: What happens when people sleep
By: SNorris
Life for many of us consists of work, school, family, social life and many unexpected events that occur throughout our daily lives, keeping us busy most of the day. How many times have you thought "there is just not enough time in the day to...
By: G E Barr
MAN'S QUIVERRight at the base of a man's bladder there rests a sac and the urethra runs through it. Within this sac is a "seminal fluid" which is discharged into the urethra as the sperm is released, during orgasm, from the "ejaculatory ducts". Because the...
Why yawning is "contagious"
By: Art Young
Some of the functions of the human body are enigmas wrapped in conundrums. For example, what causes that mind-numbing pain of brain freeze when you eat ice cream too fast? What causes hiccups? Why do we yawn, especially if we see someone else yawn?These...
By: Erich Rosenberger M.D.
The colon is one of the more well-known organs in the gastrointestinal system. The colon is essentially just another term for the large intestine. The structure and function of the colon are very important to your ability to digest food and excrete waste. This article...
By: Erich Rosenberger M.D.
The gastrointestinal system is a complex system of organs which are responsible for digesting food and absorbing nutrients that you need in order to survive. The duodenum is a part of gastrointestinal system, located just below the stomach. The structure of the duodenum is quite...
What is the composition of blood?
By: SMT
Hematology is the branch of physiology that addresses the study of blood. Blood is an essential component to human life that serves and carries out many vital bodily functions. Blood facilitates metabolic processes that encompass transportation of oxygen to other systems such as muscles, organs...
By: Erich Rosenberger M.D.
The pancreas is a rather unique organ in the human body. It is part of two different organ systems, the endocrine system and the digestive system. Technically, the pancreas is a large gland. A gland is a structure in the body that secrete hormones. The...
Structure and function of the kidneys
By: Alicia M Prater PhD
The kidneys are bean shaped organs in the abdominal cavity that are part of the urinary tract. The organs are held in place by connective tissue, the fibrous renal capsule, and cushioned by fatty tissue, the perinephric fat. Humans normally have two kidneys, but they...
Structure and function of the stomach
By: Sina
When having a discussion concerning anatomy the phrase form determines function comes to mind. What this entails is that the structure of the organ determines strongly what that organ does. The stomach is a muscular sac that provides a conducive enviroment for breaking down, chemically...
Reason that the need for sleep increases in the wintertime
By: David Walks-As-Bear
Umm, next week begins the Severe Moon the time of intense we-pe (cold), m' quat'na (ice) and heavy co-nee (snow). It's the time of hard winter or, si-kona papoon-we. It can be dangerous and is usually only fun for the little ones. But, as with...

 

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