Varicella zoster virus – causes, symptoms, diagnosis, treatment, pathology

Varicella zoster virus – causes, symptoms, diagnosis, treatment, pathology

On our Youtube channel, you’ll find a limited selection of pathology and patient videos. With Osmosis Prime, you’ll get access to over 700 videos including complete coverage of pathology and physiology and a growing collection of pharmacology and clinical reasoning topics. Try it free today. Varicella zoster virus is one of the herpesviruses and it…

Schizophrenia – causes, symptoms, diagnosis, treatment & pathology

Schizophrenia – causes, symptoms, diagnosis, treatment & pathology

Schizo means split, and phrenia, in this case refers to the mind. Even though schizophrenia can be interpreted to mean “splitting of the mind”, it does not refer to a split personality, like some media sources might portray, but rather schizophrenia describes a scattered or fragmented pattern of thinking. Schizophrenia’s actually a syndrome, meaning there’re…

Attention deficit hyperactivity disorder (ADHD/ADD) – causes, symptoms & pathology

Attention deficit hyperactivity disorder (ADHD/ADD) – causes, symptoms & pathology

What most people know—or think they know—about attention deficit disorder, or ADD, is that it’s used to describe somebody who can’t stay focused…and when they REALLY can’t focus, they have attention deficit hyperactivity disorder, or ADHD. This continuum from one to the next isn’t quite how it works, though. ADD and ADHD are actually synonymous,…

Clinical depression – major, post-partum, atypical, melancholic, persistent

Clinical depression – major, post-partum, atypical, melancholic, persistent

You’ve probably come out of a particularly sad movie and said something like: “Man, that was depressing.” In this case, you’re talking about how, at that moment, the movie made you feel sad, discouraged, hopeless, or anxious. You probably wouldn’t say something like: “Man, that movie was clinically depressing.” The latter expression refers to a…

Meningitis – causes, symptoms, diagnosis, treatment, pathology

Meningitis – causes, symptoms, diagnosis, treatment, pathology

With meningitis, mening- refers to the meninges which are three protective membranes that cover the brain and spinal cord, and -itis refers to inflammation; so meningitis is an inflammation of the meninges. More specifically, it refers to the inflammation of the two inner layers which are called the leptomeninges. The outer layer of the meninges…

Alcoholism – causes, symptoms, diagnosis, treatment, pathology

Alcoholism – causes, symptoms, diagnosis, treatment, pathology

Alcohol is one of the most widely used psychoactive substances in the world, and has been a part of different cultures for hundreds of years. Drinking alcohol can have serious harmful consequences, it’s been linked to various cancers, gastrointestinal diseases, and metabolic problems. Over time, regular use of alcohol can lead to alcohol dependence and…

Cerebral palsy (CP) – causes, symptoms, diagnosis, treatment & pathology

It’s pretty well-established that your brain’s really important. It’s like, if your body was a computer, your brain’s the mainframe. It controls everything, whether you’re aware of it or not. Cerebral palsy means “brain disease causing paralysis”; so essentially, cerebral palsy refers to damage to the brain that causes loss of muscle control, like for…