By: Jose Juan Gutierrez
The human nervous system is a communication network of neurons (nerve cells) which serve to conduct a variety of messages to and from various parts of the body. There are two distinct types of nerve tissues: neurons which are the basic structural units of the...
Chemical composition of gallstones
By: Effie Moore Salem
Gallstones, hardened crystallized formations lodging in the gallbladder or in the bile ducts, are formed from either cholesterol or calcium. It's estimated that about 15% of men and 30% of women have these, although often there's no symptoms and many go undetected. Gallstones formed from...
What is Tau and how it relates to nerve degeneration
By: Alicia M Prater PhD
Tau proteins are cytoskeletal proteins involved in the stability of microtubules in neurons. This function makes tau proteins important components of neuron morphology and nerve cell construction. Because of this relationship and the role neuronal morphology (i.e. axons and dendrites) plays in neural networks...
Anatomy of the hearing process
By: Phyllis Logie
The ear is the organ which detect sound. It is also responsible for maintaining balance and body position. The ear is a transducer which converts sound waves into mechanical energy and then into nerve impulses that are then transmitted to the brain. This highly complex...
Symptoms and treatment of lithium overdose
By: Alicia M Prater PhD
Lithium, the third element of the period table of chemical elements, is a soft metal used to treat bipolar disorder. Though it is commonly associated with batteries and other electronic applications, it has been in use medically since the 1800s for treating a number of...
By: Jack Merrywell
Down syndrome is a genetic disorder caused by the presence of an extra copy of the twenty-first chromosome in the human genome. This condition, more properly called trisomy 21, causes severe mental and physical disabilities, and it occurs in about 1 in every 900 births...
10 unusual facts about the human body
By: Jose Juan Gutierrez
The human body is composed of millions of cells which are constantly performing varied functions without cease. These cells are capable of reproducing themselves by the millions with such extraordinary speed and performing various functions, such as replacing dying cells, interacting with chemical substances in...
Comparing the functions of thyroid and parathyroid glands
By: Bee Smith
The thyroid gland keeps under control how the body uses energy, makes proteins, and keeps control how sensitive the body is to other hormones. Thyroid hormones are produced by these actions. Main hormones of the thyroid system are triiodothyronine and thyroxine (T3 and T4). Hormones...
Brainboost: Downloading directly into the brain
By: Terrence Aym
Throughout history people learned by rote and repetition. That's about to change say excited researchers who see people boosting their knowledge and skills by simply downloading everything right into their brains.As knowledge about the brain continues to grow exponentially, so do the ways that...
By: Janet Grischy
Various types of protozoan infective organisms are responsible for plenty of human misery. Ingested in contaminated water or injected by a feeding insect, they cause diseases ranging from malaria to encephalitis. Protozoan is an inexact term for one-celled organisms with an internal structure more complicated...

 

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