Overview of pituitary gland hormones
By: Tarek Musslimani
The pituitary gland is a small yet very important endocrine gland which lies at the bottom aspect of the brain. It lies immediately below the hypothalamus and there is a connection between the hypothalamus and the pituitary gland which is called the pituitary stalk. In...
Overview of the monthly sexual cycle in females
By: Tarek Musslimani
The female reproductive life differs than that of the male by being of specific limited period of time usually between the ages of 12 and 45. While the male reproductive years continue through out life with little decline in his fertility. The reproductive life in...
Overview of human cerebrospinal fluid
By: Tarek Musslimani
The cerebrospinal fluid is a transparent liquid material that fills the brain cavities. There are in the brain four cavities which are referred to as ventricles. There are in the brain four ventricles, two lateral ventricles and two others which are referred to as the...
Hormonal regulation of proteins metabolism in the human body
By: Tarek Musslimani
In this article, I will discuss hormonal regulation of proteins metabolism in the body which are usually synthesized in the liver. Especially notable here are the immunoglobulins, which are proteins that play a role in the immunology in the body. They usually function as antibodies...
What is a neurotransmitter?
By: Tarek Musslimani
A neurotransmitter is a chemical compound that is sythesized and secreted by neurons in the nervous system to the synaptic cleft between adjacent neurons. There the neurotransmitter binds to receptors on the cellular membrane and induces either depolarization or hyperpolarization of the adjacent cell. This...
Overview of thyroid hormone
By: Tarek Musslimani
Thyroid hormone is a derivative of the amino acid tyrosine. It has iodine atoms attached to it. Therefore, its biosynthesis requires iodide ions that must be supplied in the diet in the form of tablets. Otherwise Goiter can result in individuals that are deprived of...
Overview of neurotransmitters in the autonomic nervous system
By: Tarek Musslimani
Neurotransmitters in the autonomic nervous system are divided into cholinergic neurotransmitters with the neurotransmitter acetylcholine being the major neurotransmitter in this group of neurotransmitters. The other type of neurotransmitters in the autonomic nervous system are the adrenergic neurotransmitters and include the two neurotransmitters norepinephrine and...
Overview of the physiology of the human ear
By: Tarek Musslimani
The human ear is a unique structure in the body because of its specialized function of processing sound waves into electrical signals which are eventually perceived by us as voice. The human ear is like the human eye limited by its ability to perceive all...
The different types of organ systems and their functions in humans
By: Steve Christensen
It’s one of those biological hierarchies we all learned in high school science class: Complex molecules aggregate to form cells; cells cooperate to form tissues; tissues organize to form organs; a group of organs comprises an organ system; and an assemblage of organ systems...
By: Ft Wells
From time to time, a physician will find a drug that he/she would like to administer to a patient. The problem is that the drug cannot enter the brain. One example is Dopamine. This could help individuals diagnosed with Parkinson's Disease but dopamine is unable...

 

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