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lilyniely: josephgiuseppe: foxyshy: dad—egberts: terra-mater:...

Wed, 19 Jun 2013 15:27:20 -0400

josephgiuseppe:

foxyshy:

dad—egberts:

terra-mater:

15 amazing things in nature you won’t believe actually exist

Source

I want to go to these places.

i want to see all of these except the spiderwebs

Why I like tumblr, posts like this

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Wed, 19 Jun 2013 09:21:24 -0400

Body Type Tips

Wed, 19 Jun 2013 09:20:12 -0400

girlwithcurves:

Read More

lolsofunny: tjurpiss: I JUST NEVER WANT TO FORGET THIS...

Wed, 19 Jun 2013 09:17:22 -0400

lolsofunny:

tjurpiss:

I JUST NEVER WANT TO FORGET THIS EVER

(lol here!)

mochacafe: (via MOST NOTED POSTS)

Wed, 19 Jun 2013 09:16:58 -0400

mochacafe:

(via MOST NOTED POSTS)

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Wed, 19 Jun 2013 09:16:08 -0400

naobro: naobro’s “Medical Tidbits” blog #8; 05/31/2013 “What...

Wed, 19 Jun 2013 09:15:40 -0400

naobro:

naobro’s “Medical Tidbits” blog #8; 05/31/2013

“What Those Waves on Heart Monitors Mean” The top image created from a video on youtube.com/watch?v=bnUM0aaPMyk, the next image from de.academic.ru, the third from en.wikipedia.org/wiki/Purkinje_fibers & the bottom image created from one on favoriteplus.com. According to the original video, the top animated GIF image above is that of a rabbit heart beating 3 hrs after dissection.

We have a 4 chambered heart; 2 atria on top of 2 ventricles, ventricles are larger than atria. Our heart is a peculiar organ; there is a group of cells located near the top, in the right atrium (#1 in the 2nd image from the top). These cells are called the “pacemaker” tissue because they generate electrical impulses which make our heart beat. The impulses travel from #1 to #2 (in the same image), then further down throughout the ventricles.

What do the waves shown in blue (in the 3rd image from the top) mean? The blue waves show the voltages registered as the electrical impulses travel throughout the heart & make our heart beat. The bottom image displays a little more details. In the bottom image, there are 4 waves, “P”, “QRS complex”, “T” & “U”. What are they?

P wave: This wave shows the electrical impulses traveling throughout our atria, the top 2 chambers of the heart. The impulses make the atria contract to squeeze the blood into our ventricles, the bottom 2 chambers of the heart.

QRS complex: This complex shows the electrical impulses traveling throughout our ventricles. The impulses make the ventricles contract to squeeze the blood out of the heart into our big arteries.

T wave: This wave shows our ventricles relaxing after the contraction.

U wave: This wave is usually too small to be observed in a healthy adult. Actually if the U wave is too prominent, we think something could be wrong.

"I know we’ve had our differences, and I’m sorry we’ve been out of touch. Believe it or not, I was..."

Wed, 19 Jun 2013 09:13:56 -0400

“I know we’ve had our differences, and I’m sorry we’ve been out of touch. Believe it or not, I was trying to make everything better. I know you’re angry and I hope you’ll forgive me. It turns out, sometimes you have to do the wrong thing. Sometimes you have to make a big mistake to figure out how to make things right.”

- Grey’s Anatomy (via anditslove)

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Wed, 19 Jun 2013 09:13:09 -0400

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Wed, 19 Jun 2013 09:12:53 -0400

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Wed, 19 Jun 2013 09:12:18 -0400

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Wed, 19 Jun 2013 09:12:04 -0400

lolsofunny: (lol here!)

Wed, 19 Jun 2013 09:11:49 -0400

lolsofunny:

(lol here!)

lolsofunny: (lol here!)

Wed, 19 Jun 2013 09:10:45 -0400

lolsofunny:

(lol here!)

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Tue, 18 Jun 2013 21:41:25 -0400

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Tue, 18 Jun 2013 21:40:12 -0400

Ouch. That explains it

Tue, 18 Jun 2013 21:39:39 -0400

Ouch. That explains it

spreadmywings: 24 Facts On Napping

Tue, 18 Jun 2013 17:24:23 -0400

spreadmywings: 24 Facts On Napping:

psych-facts:

Abandon all-nighters - Foregoing sleep by cramming all night reduces your ability to retain information by up to 40%. If you can, mix in a nap somewhere to refresh your hippocampus.

It doesn’t mean what you think - If you know you have to pull an all-nighter, try a…

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Tue, 18 Jun 2013 17:23:36 -0400

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Tue, 18 Jun 2013 17:23:18 -0400