lunes, 11 de marzo de 2013

Diary


Diary of the Heart Dissection


     For several weeks we have been talking about the project about the heart dissection and the tablets that the high school is going to buy.
     Weeks later, Sergio came to class and gave us the news:  the tablets were already  and able to use them. First we have some problems with the conections and the paswords but finally we can use them.
     We had to find a specialist on twitter that help us with the dissection. We find Lesli Samuel who gave us a page with a plan of a dissection.
     The next day we show it to Sergio in the tablet and he smile us... :)
    The following days we were preparing the plan that we have to show in class. We had some problems because we didn't have enough time so we did by phone.
    The presentations began on 7 of March. Aranzazu and I not present because we wanted to see some presentations before.
     We present on Friday. We were very nervous, but we did well. At the end Sergio gave us the congratulations because we did it in a program that he liked.
     Some people they haven´t present, but there are few groups.  
    I think that this week (Monday, 11 of March) or the following, will do the dissection...That´s funny!
    Finally we did the dissection the last week before the Easter holidays (thursday 21 of March). Everyone brought hearts in bags and left them at the first hour in secretariat.  


     In the hour of biology (after the breaktime) we went to the lab and sit with people from our group. Mary handed out gloves, trays, scalpels and scissors and told  that we put us our gloves,  take out the heart of the bag and put it in the tray . Then everybody started to dissect following the plan he had written. At the beginning  Carla and I didn't want to touch , but we had to do it , so we turned it and started to put pencils by the aorta, the pulmonary vein... We weren't very sure where it was every one but Ismael Cabrera helped us.


     Next , one class of Bachillerato come to saw and helped us with take pictures because our gloves are dirty. A guy took the picture while we were situated the pencils. 
    When we started to cut the heart was very hard and as much as we tried it we couldn't so Dani  helped us (For this reason the hands that appear in the video are so big). After cutting it in half, we saw the connections and valves. 
     At the end we were very dizzy by the smell and Carla wanted to not having breakfast...
     We collected everything and we threw it in the trash but before throwing the heart Dani 
asked us that we leave it to break it with his hands, I think that he had fun. 




     The photos are colocated in order:













sábado, 9 de marzo de 2013

Heart Dissection



Heart Dissection


- First Step: 
          
Remove the gloves and the scalpel of the bags or boxes. This step will do Carla.Then, we put our gloves.


- Second Step:
           
We have to remove the heart from the bag.This step will do Aránzazu.


- Third Step:
Put it on the table and indicate with colored pencils: vena cava, pulmonary vein, aorta and pulmonary artery.
  To find the aorta you have to find the pulmonary vein because the aorta should be situated a little bit behind it. Next you put the red pencil (aorta) and the blue pencil (pulmonary vein). This step will do Carla.   The two main veins can be found on the backside and come in left and right atria. Then you put the green pencil (vena cava) and the yellow pencil (pulmonary artery). This step will do Aránzazu.


vessels

- Fourth Step:
Use the superior vena cava and pulmonary vein as guides for where to cut. This step will do Carla.

heart cut 1





- Fifth Step:
When the heart is open, you can see the inner chambers.


chambers labeled

Aránzazu records (When we cut the heart) and Carla takes the photos of ALL.