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The body's regulation of blood sugar and glucose
By: Alicia M Prater PhD
Glucose is a sugar and the main energy source used by the body. Carbohydrates that you eat are broken down, converted to glucose and then absorbed by the bloodstream. Circulating glucose is one of several blood sugars, which also include fructose and galactose, but when...
An overview of hypermobility syndrome
By: Alicia M Prater PhD
Hypermobility syndrome is a joint condition that allows movement beyond the normal function of the joint. The connections between bones are usually contained within a network of ligaments and connective tissue that support and control the movement of the bones. An good illustration of the...
Function of the spleen
By: Alicia M Prater PhD
The spleen is a small organ in the abdominal cavity that is considered to be part of the lymphatic system, which also includes the lymph nodes. The lymphatic system consists of a series of vessels that parallel the circulatory system to allow drainage of excess...
Functions of lipids in the human body
By: Alicia M Prater PhD
Lipids include fatty acids (making up fats and oils), steroids (including cholesterol), phospholipids and waxes. One function of lipids in the body is to serve as an energy reserve, others serve as components of cell structure and yet other lipids act as hormones and signaling...
How the circulatory system works
By: Alicia M Prater PhD
The circulatory system in humans is a closed system – blood travels through vessels in a loop from the tissues to the heart, with a second loop between the heart and the lungs. Some animals have open circulatory systems where the blood floods over the...
The five senses of human beings
By: Alicia M Prater PhD
The senses are a concept taught very early in human education. They define the environment, allowing people to act and react to their surroundings as well as survive and adapt. Sight, smell, sound, taste and touch are the five senses – all attached to the...
Why some people are left handed
By: Alicia M Prater PhD
Scientists have determined that whether a person uses their right or left hand to perform tasks is based on the asymmetrical development of the brain during embryogenesis. Handedness is based on hand dominance, as in the brain favors one hand over the other. The idea...
Common birth defects of the female anatomy
By: Alicia M Prater PhD
Birth defects occur for a number of reasons, though they are most often influenced in the first trimester of pregnancy. The Centers for Disease Control and Prevention (CDC) in the United States estimates that every one in 33 babies is born with some form of...
Endocrine glands of the human body
By: Alicia M Prater PhD
The human body has a complex chemical messenger system enabled by the endocrine system. The major components of this system, the endocrine glands, consist of specialized cells that release hormones directly into the bloodstream (i.e. ductless) so they can travel to and act on...
Body defense and immunity
By: Christyl Rivers
Like all complex animals, the human body displays remarkable immune defenses against invaders, such as bacteria and virus, that would otherwise overwhelm the system.There are also internal parasites to be dealt with in each body. When a person sneezes, he or she expels thousands...

 

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