Acute Angle Closure Glaucoma

Acute Angle Closure Glaucoma Aqueous humor is produced by the ciliary body and flows out of the posterior chamber, along the lens and iris, through the pupil, and into the anterior chamber where it is mostly drained through the trabecular meshwork and into Schlemm’s Canal, located in the Iridocorneal angle. Resistance arising within the channel […]

The menstrual cycle

Learning medicine is hard work! Osmosis makes it easy. It takes your lectures and notes to create a personalized study plan with exclusive videos, practice questions and flashcards, and so much more. Try it free today! The menstrual cycle refers to the regular changes in the activity of the ovaries and the endometrium that make […]

Type I hypersensitivity (IgE-mediated hypersensitivity) – causes, symptoms, pathology

Having a hypersensitivity means that someone’s immune system has reacted to something in such a way that it ends up damaging them, as opposed to protecting them. There are four different types of hypersensitivities, and in the first type or type one, the reactions rely on Immunoglobulin E, or IgE antibody, which is a specific […]

Postpartum hemorrhage – causes, symptoms, treatment, pathology

Postpartum hemorrhage is a significant loss of blood after giving birth, and it’s the number one reason for maternal morbidity and maternal death around the world. Specifically it’s defined as losing more than 500ml of blood after a vaginal delivery or more than 1000ml after a cesarean section delivery. Of course, deliveries can be messy […]

Gallstones (cholelithiasis) – causes, symptoms, diagnosis, treatment & pathology

When you eat some real fatty foods, like say some delicious french fries, they make their way to through the stomach and into the small intestine. At this point they aren’t really french fries anymore, but since they’re high in fat, they’re still a little more difficult to absorb, and that’s where your gallbladder comes […]

Herpes (oral & genital) – causes, symptoms, diagnosis, treatment, pathology

Most of the time, when herpes simplex virus or HSV infects a person, there are no symptoms. In fact, it also usually moves from one person to another in the absence of symptoms, so it can therefore it can move through a population silently. Once in a while, though, it can cause symptoms, and typically […]

Glaucoma (open-angle, closed-angle, and normal-tension) – pathology, diagnosis, treatment

Learning medicine is hard work! Osmosis makes it easy. It takes your lectures and notes to create a personalized study plan with exclusive videos, practice questions and flashcards, and so much more. Try it free today! Glaucoma is actually a group of of eye diseases that are usually due to intraocular hypertension, or increased pressure […]

Systemic lupus erythematosus (SLE) – causes, symptoms, diagnosis & pathology

Alright, “systemic lupus erythematosus,” k we totally got this. “Systemic” is easy, and refers to affecting multiple organs in the body. “Erythematosus” means reddening of the skin, alright alright. “Lupus” is latin for “wolf”. So affects multiple organs wolf…reddening of the skin? Not exactly, the modern use of lupus usually refers to a variety of […]

Poliomyelitis – causes, symptoms, diagnosis, treatment, pathology

In poliomyelitis, also called polio, “polio” refers to the poliovirus, which is an enterovirus that invades the intestines, “myel” refers to the spinal cord which is affected in the disease, and -itis refers to inflammation. So poliomyelitis is an enteroviral disease first enters the body through the intestines, but then spreads and causes nerve injury […]