A granuloma is a mass of immune system cells that have gathered around and sealed off a foreign particle that has resisted the immune cells’ attempts to destroy and digest it. This foreign particle could be anything from a tuberculosis…
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Everyone is familiar with the basic functions of the lungs. They allow you to breathe, it’s that simple. The primary structure is also well known, there are two of them – one on the right and one on the left….
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Every winter as the cold sets in and the clouds roll across the sky bringing the first snowflakes of the year many people find themselves hitting the snooze button on their alarm clocks more and more frequently. They just don’t…
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Alopecia areata is a common autoimmune disease, in which the body attacks its own hair follicles and suppresses hair growth, which results in hair loss on the scalp and other areas of the body. Alopecia areata does not cause scarring….
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There are many risks that affect a human-being’s life span. They include smoking, drug usage, disease, the immune system’s health and more. The leading cause of deaths in the US include smoking and obesity (obesity then breaks down into heart…
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The sinuses are usually written off as “four pairs of air-filled chambers in the facial bones that connect to the nose”, but for the 35 million who suffer from chronic sinus problems in the U.S. alone, or the 500,000 who…
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Synesthesia is the simultaneous perception of different senses. There are three different types of synesthesia: sensory, cognitive and emotional. Sensory synesthesia occurs when one of the senses (e.g., sight) is perceived together with another sense (e.g., smell). So when one…
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The eyes are the two most complicated and complex organs in the body. The main function of the eyes is to work with the brain to provide vision. How Do They Do It.? The eyes are connected to the brain….
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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…
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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…
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