What is Psoriasis? Psoriasis (p – silent) is an autoimmune disease. This disease occurs when one of the main features of the immune system – recognition between self and non-self is compromised. What happens in Psoriasis? Psoriasis is an autoimmune disease of the skin, including the scalp. Now. we all know that we keep shedding skin [...]
May 10, 2012
Heart Contractions Simplified
Cardiac cells have two unique features that aid in contractions. The first feature is automaticity, which refers to the ability of a single cardiac cell to contract. Secondly, cardiac cells exhibit autorhythmicity. This refers to the ability of cardiac cells to synch their contractions. How do these cells know when to contract? Signal to Contraction [...]
May 9, 2012
Functions of the Kidney
The kidneys are essential organs in the body. Without them we are unable to function. Many of us if asked what the functions of the kidneys are, we will say it is for the removal and elimination of waste from the body into urine. Yes, the kidneys are important for excretion, however they play more [...]
May 8, 2012
Immunity Disorders 2 – AIDS
AIDS is a brilliant example of an immunodeficiency disease. It results from some corruption in the immune system of our body. However, the main strong point of AIDS, its main distinguishing feature is that it is unpredictable. It can activate now, or later, or never. There are people who have died two months after contracting [...]
May 7, 2012
7 senses and An Introduction to Sensory Receptors
Your 7 Senses Now that we’ve introduced the coolest cell in the body, and the army supporting it, let’s start our descent into the nervous system. Our experience of the world starts with the ability to perceive the world, and to discriminate between different kinds of stimuli. You generally experience the world through your five senses: [...]
May 11, 2012
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