Somethings i learnt in the dissection room (DR):
- Muscles of the tongue: Genioglossus, Styloglossus, Hyoglossus, Palatoglossus
- Nerve supply: All hypoglossal nerve (XII) besides palatoglossus (IX,X)
- Tears produced at the lateral side of the eye, passes medially across the conjunctival sac, before going in through the puncta, then into the lacrimal sac, then into the nasolacrimal duct, before coming out of the inferior nasal meatus. So basically, tears drains into the nose.
- Sore throat = laryngitis
- Some kids suffer from tonsilitis. A lot of people got their tonsils removed when they are young.
- pulmonary circulation receives the whole cardiac output
- around 40% of our DNA is junk DNA (doesn't have any functions or not known yet)
- cancer is a result of multiple mutation. One mutation alone cannot cause cancer.
- Due to being in upright position, most poportion of the air that we breathe goes deep into the lungs, rather than the apex.
- Blood flow to the base of the lungs are higher than the blood flowing to the apex of the lung.
- Vigra is a phosphodiesterase inhibitor. Sexual stimulation cause production of NO from arginine by NOS in endothelial. NO is secreted into smooth muscle. NO activates guanylyl cyclase to make cGMP. cGMP will cause smooth muscle to relax and dilate the blood vessel. Viagra inhibit phosphodiesterase which will break down cGMP, causing high cGMP concentration in smooth muscle. Therefore penis remains erected.
- Our muscle is at a mechanical disadvantage because it attaches close to the fulcrum. (Biseps attaches close to the elbow.) However, by doing that, we are able to manipulate our movements by just a small change in muscle length. (Imagine if your biseps which flexes your elbow is attached near to the wrist, far from the fulcrum (elbow). You will need more change in length of the muscle to facilitate the same movement.
- Carbon dioxide cannot be present in water without generating bicarbonate ions.
- Nerve action potential is similar to digital transmission of information.
Other facts:
- People here actually studies before they go to lectures/ dissection/ lab. WHATS THEIR PROBLEM????? You can actually see their notes loaded with notes and underline/ highlights. Apparently we are suppose to know most of the things when we get to the dissection room. We are not there to learn, but to be tested on.
- Some students can just fire all the answers like nobody's business. And the best thing is that we havent even learnt about it yet.
- We finished the cranial nerve, all the structures in the head in 4 weeks. How's that even possible?
- In supervision, again you are being asked questions. I thought its a place where you learn, not being tested!! Some are for the past lectures, which they assume you have known. Some are for future lectures.
- Every week there will be essays for you to fill up your weekend, and not to mention revision for the previous lectures.
- I am dancing for Malaysian night.
- My cooking improved (quote from my friend)
- Screaming and running out of the lecture hall when the lecturer is talking about how G proteins stimulate alpha subunit before activating adenylate cyclase, will make you a legend.
