Wednesday, April 22, 2009

Did you know.......

that the strongest chemical influence on breathing is H+ ion sensed by the central chemoreceptors of the medulla?

that in a typical 500mL inspiration, about 150 mL fills anatomical dead space and 350 mL reaches the alveoli?

that there are 4 kinds of hypoxia, a deficiency in oxygen in the tissues?

that airflow is directly proportional to the pressure difference between two points and inversely proportional to resistance?

that an alveolus is composed of squamous and great alveolar cells and contains alveolar macrophages (that last line of defense against inhaled debris)?

gastric juices consist mainly of water, HCL and pepsin?

that chief cells secrete pepsinogen, a zymogen which HCL converts to pepsin and that in infants the chief cells also secrete the fat digesting enzyme gastric lipase and the milk curdling secretion chymosin?

that prostates grow from apricot to lemon size between 20 and 65 years old?

that glomerular filtration and urine output increase to dispose of both fetal and maternal wastes but the capacity of the bladder is reduced by pressure from the uterus?

that i am slowly going crazy 1- 2-3 -4 - 5- 6 switch, crazy going slowly am i , 6 -5 -4 - 3 -2 - swtich. 

that i have 29 hours until my anatomy and physiology final exam covering 8 months and 1011 pages of ridiculously cool but incredibly frustrating material?

that this could possibly take the cake for the most boring/ coolest post depending on if you hate or love biology?

that i'm taking a 10 minute break from the respiratory system and this is what i've chosen to die (i'm also enjoying a diet coke)?

that i keep forgetting to mail rachel and arielle their super funny card that i got them the day after i received theirs but just cannot for the life of me put it in the mail?


janet said...

i think your second last little section about the diet coke should read ' do ' instead of ' die' although the die part wouldnt confuse me if you meant it...readin that stuff makes me go crazy in ten seconds...but SOOOO interesting too!!
i still think i should have been a nurse.

i hope you do SUPERFANTASTICAL on your test. P.S. Sarahs cottage is the best t-ah- show on earth you were right!!

Leigh said...

so I started reading at the top and had no clue what you were talking about but decided to scan to the bottom just to make sure I didn't miss anything that I would understand. so glad I did! you crack me up! keep studying hard friend, you are almost done!

Anonymous said...

YESSSSSSSSSSSSSS! I'm excited for my mail.
You rock.

mollie said...

maybe now you can sympathize with me neglecting to mail your shoes STILL.