Finals are still a week (6 days!) away, and I’m already tired of studying. I would love to get through the protozoa (which I am only halfway through), and maybe a good start on female repro pathology (which I have not yet started), but I really. really. do. not. want. to.
Maybe an hour at the gym will perk me up.
(No one ever said this blog would be interesting.)
Somehow, 4 hours have passed since I posted the above, and while I made it to the gym for an excellent 3 mile run, I have done nothing more with the protozoa than think about what a funny word “sarcocystosis” is, what with all those ‘s’ sounds, and have done nothing more with female repro pathology than wonder if supernumerary teats, a condition not uncommon* in the udder, could happen to humans. I even googled it, half-heartedly. Which is ironic since if there is one species we’re probably not going to get tested on, it’s the human one. Ugh. Not a good studying night!
* they use ‘not uncommon’ all the damn time in path. double-negatives usually drive me nuts, but i’ve grown some affinity for it.
I got through the Sarcocystis species. They are a protozoa with a complex lifecycle involving two hosts; one is usually a herbivore, and might be clinically affected, and the other a carnivore, which is usually asymptomatic, unless they are immunocompromised. See, the carnivore eats the herbivore which has these sarcocysts embedded in the muscle; in the carnivore the sarcocysts reproduce, multiply, form sporulated oocysts which are shed in the feces. Then a herbivore eats the feces (usually food/water contaminanted with feces), and of course those sporulated oocysts; in the herbivore the oocysts spit out the cysts which embed in the skeletal muscle and sometimes CNS. Rinse and repeat. This may or may not cause fever, anorexia, muscle wasting alopecia, CNS signs and/or death in the herbivore. The most significant disease to know is equine protozoal myeloencephalitis, caused by Sarcocystis neurona, and accounting for about 25% of all CNS disease in the horse. If the horse would not eat oppossum poo, he’d be fine, but he does, and if the oppossum has fed on, say, a dead kitten infected with sarcocysts, then the horse is up a creek. I hate parasitology.
I got through mammary gland pathology, which if you’re weird enough to think that might be in any way, shape or form, exciting, I can assure that it is not. We’re talking gangrenous udders here, people. And tumors, which obviously we know is common in people, but curiously only fairly common in dogs, and not particularly common in cats, and rare in other animals. And this speaks to yet another brilliant reason why you should spay your cat/dog, because it is the older, intact animals that get mammary tumors, and while spaying a young animal is very protective against this, it is progressively less protective as the animal cycles, and after 2.5 years all protective affects of the spay are gone. So spay, early.
bedtime. i guess the day wasn’t a total waste, what with all that gym activity and sarcocystis and mastitis learning. yahoo.