Monday, November 17, 2008

Dreaming of Magic

Just to randomly update my holidays status...

at 3am I am immersed in the world of Draco Malfoy and Harry Potter.
I hate that I can't seem to get enough of the characters in the novels, but in fanfiction? oh! It's another story altogether... I think I like the idea of Draco and Harry, as enemies being able to get over their differences to realise how incredibly attractive both of them would be, especially with all the quidditch training. Nice.

I know I'm not making much sense. The night ended badly last night and I went to bed with my cheeks and ears burning in frustration, anger and embarrassment. Even still I didn't get anything truly sorted today, though I tried. I think the idea is to go with the flow but that assumes that others make the moves instead - if they go with the flow too then nothing happens and you end up getting shoved out of the way so that someone else who can make decisions moves into place.

So HP/DM slash has been a nice retreat for me. To dive into the world of HP and dream about being a part of it. Though knowing myself I'd have been just the same nerdy, uncoordinated, socially inept marshmallow I was in highschool. Chances are magic would have little to change in that scenario.

Nevermind, I can dream. :P

Wednesday, November 12, 2008

2008 - first year med = over

I understand that I may have gone a little overboard with the studying via blog... not that we were tested on much of that, or that I could remember many of the law cases so maybe I shant do that next year :P

Today was the last day of exams. Four exams in the last three days... it has been hell, but very satisfying that it is all finally over!! So I can relax during my holidays only to do it all again next year :P Though (new years resolution #1) I will be more prepared with study notes before exams. The plan is also to possibly look at muscles and bones over the holidays to become acquainted with the many many muscles we will have to know by this time next year.

I am home recently from the after exam party. We played pool at Tom's, where I got quite tipsy and yet I still have half my drinks there... Went to Melbas and had a good time; then my feet got very sore (NYR #2) so I will learn not to wear heels (despite very sexy heels that make me at least 3 inches taller - so yea, 5'5" = practically normal!!) when I know I will be dancing/partying for so long; then many people left; then when most of the good ones had gone and the ratio of sleazes to cuties was severe, I got Tom to walk me to the taxi rank and got home eventually. Now my feet are painful and my makeup is still on. Tomorrow I will fix.

For now I am concerned about two things - 1. there are a fair few cute boys in med who would be potentials in the dating scene if they were not a) in med with me for the next 4 years b) more like brothers to me and c) currently attached with girlfriends and admirers; and 2. how I can explain to my boyfriend that no, I dont want to go visit your family on the weekend because a) it is my car and he doesnt have a licence so I will be doing all the driving b) dan is coming down and I haven't seen him in ages, nor will I see him in ages after this weekend and he is awesome fun c) this weekend was sort of meant to be me partying heaps since I have now finished exams d) cos I need to stop showing so much attachment (and thus feeling more attached) to his family (and thus him) as it seems like the breakup is inevitable more and more each day. I hate the fact that it is always me doing the traveling to see him and that when he suggests we go visit his parents that the implication is via my car, my petrol (which he rarely contributes to) and me doing all the driving. I hate that he wont appreciate the fact that I like to go to clubs and party and dance, and instead will sulk by the corner watching me and getting angry when other guys look at me, yet he will casually stare at the next nice pair of breasts that walks by and even feel cocky enough to point them out to me.

Augh. Inevitable is inevitable. I'm just a weak bastard who wont committ to the uncommitting..

Sunday, November 9, 2008

Cardiac Cycle. Yea I know I'm lame :P

Phases:
1 Atrial contraction
End A systole pressv so valves float back up
2 Isovolumetric contraction
press V > A so AV valves close.
S1
V press ^^
3 Rapid ejection
press V > aorta/pulmT - SL valves open
4 Reduced ejection
rate of ejection decreases
5 Isovolumetric relaxation
press V < vessels so SL close
S2
6 Rapid filling
press V < A so AV open
S3 may occur
7 Reduced flling
vents fill, but less compliant so ^press
S4 may occur

Legal stuffs

Just to get it into my head, here's some case references I may need to know:

Re A (adult: refusal of medical treatment) [1994] 1 WLR 290 (capacity test)
Barnett v Chelsea Hospital Management Committee [1969] 1 QB 428 (causation - link)
R v Davidson [1969] VR 667 (abortion - menhennit ruling)
R v Wald [1971] 3 DCR (NSW) (abortion - including state after birth)
R v Bayliss and Cullen [1986] 9 Qld (Menhennit ruling applying in Qld)
Re B (adult: refusal of medical treatment) [2002] 2 All ER 449 (Life sustaining treatment for competent adult)
Re S (adult: refusal of medical treatment) [1992] 4 All ER 671 (pregnant woman refusing)
Airedale NHS Trust v Bland [1993] AC 789 (withdrawal of life support)
Civil Liability Act [2003] Qld
Criminal Code Act [1899] Qld
Guardianship and Administration Act [2000] QWld
Powers of Attorney Act [1998]
Transplantation and Administration Act [1997] Qld
Public Health Act [2005] Qld
Worker's Compensation and Rehabilitation Act [2003]

Friday, November 7, 2008

Fetal Circulation

Since the lungs are not used in the fetus (because oxygenated blood comes from the umbilical vessels), blood is shunted around in different ways:
0. Umbilical vessels
Umbilical arteries drains blood from fetal iliac arteries; blood is passed through vessels in the placenta and diffusion between it and the mother's blood can occur, thus delivering nutrients to the fetus and removing wastes. The umbilical vein returns oxygenated blood to the liver (half of which will go through the liver and the other half through the DV)
1. Ductus venosus
This structure bypasses the liver and joins with the IVC to direct oxygenated blood from umbilical vessels to heart and thus the rest of the circulation.
2. Foramen ovale
Since RA receives oxygenated blood (from IVC/DV/Umbilicus), and that the lungs do not supply oxygen at this time, there is a hole between the atria that allows blood to travel from RA to LA so oxygenated blood can be delivered to other systems. The Septum primum on the left side prevents blood going from left to right.

3. Ductus arteriosus
Similar to the foramen ovale, this allows blood to flow between the pulmonary trunk and the aorta.

Embryology of the lungs

Ok, I'm ignoring development of the upper airways, pleura and diaphragm here (mainly because we didn't discuss it and I'll try and deal with it later)

Endoderm forms the epithelia.
Splanchnic mesoderm and neural crest cells form the cartilage, connective tissue and muscles.

So there are roughly 5 stages:
1. Embyonic (from the 4th week)
Development begins in the 4th week where there forms a respiratory (or laryngotracheal) diverticulum (from an opening in the foregut in the embryo).
The diverticulum grows and then folds (tracheo-oesophageal folds) to create the tracheo-oesophageal septum to separate the trachea and lung buds from the oesophagus. There is still a connection with these two - via the larynx which forms from the 4th and 6th pharyngeal arches.
The lung buds are two divisions of the trachea, and these continue to divide so that by 6 months there are more than 17 subdivisions.
2. Psuedoglandular (5-17 weeks)
All of the elements of the lungs have developed except those involved in gas exchange
3. Canalicular (16-25 weeks)
Increase in vascularity of the lungs. Respiratory bronchioles and alveolar ducts form.
4. Saccular (24weeks to birth)
Increase in the number of terminal sacs.
Cuboidal cells become flat squamous epithelia.
By week 20 Type II alveolar cells have been producing surfactant.
Further development of the capillary network
5. Alveolar (late fetal - childhood)
Where alveoli form and continue to develop after birth

Monday, November 3, 2008

Fascination

Humans fascinate me.
Not just how the body works, but the mind too.
Stubbled across a few sites that have intrigued me:
FOUND Magazine
Postsecret
I Found Your Camera
I've been up for an extra hour looking at scanned pictures and postcards with other people's thoughts and scribbles. There's so much about us all that I want to understand better.
Also I wonder if anything that I've ever written has made it online... Now I'm worried.
And also wanting to go to the library more often to find secret love notes stashed between the pages. Or better yet, what I used to do - quietly defile the pages (in pencil I might add) with some secret I couldn't tell anyone.
This is much like finding my old diaries again and reading what I wrote so many years ago. Except I do remember some bits of what I wrote, and recognise the person behind the writing; while these people online are people who I don't know, who have different histories and backgrounds and I'm curious - I want to know more about them.
I'm also insanely jealous about some of the beautiful handwriting shown.
Now I want to go study about handwriting since the way a person writes is fascinating.