Grant Lahring December 16 (3/3)

What We Did:
- Went over notes on the blood types
- Reviewed blood types and blood clotting
- Learned how certain deficiencys can lead to hemophilia
Thoughts and Opinions:
- Probably the most practical thing we'll ever learn in biology
- I should find out my own blood type (Considering donating blood, heard rumors of doughnuts)
- Kind of of that O type blood, with no antigen, is universally accepted, it seems although the body would more likely attack something with no antigen than something with, say, 1 of 2 antigens. If having no antigens means univseral acceptance, why don't virus' have no antigens?
Above and Beyond:
- Sorry, internet is glitching again, can't get a picture (Cuuuuuuuuuurrrrrrrrsssssssseeeeeeee you dial-up)
- My blood type is type O, negative, the universal donor, so I will donate blood after all ^_^
- The human human heart can squirt blood up to 30-feet. Wow.

Codee Koch,Tue December 15, Blog #3 3/3

What We Did
- A recap of pg 372 d, e, f, g
-filled in and read the blood clotting handout
-reviewed blood typing
-reviewed the immune system

Thoughts and Opinions
-at first the blood typing was confusing but eventually it became easier to understand
-the system of blood clotting was pretty easy ( the definitions and how blood clotting works, fibrinogen, prothrombin, etc...)

Above and Beyond
-below is a picture of certain blood types

Bree Harrison (December 10th, 2009)

What we did:
-Handed in ticket to the test pg.346 #1-5,7-9,11,13,14,18
-Chapter 10 quiz.
-Dissection questions due tomorrow.

My thoughts:
-I found it interesting that the pulmonary circulatory system is the system of blood vessels that carries blood to and from the lungs.
I also found it different that the right and left side of the heart are different from when you compare them in your chest. This is confusing because you mix up the sides on test questions.

Above and Beyond:

This link shows cardiac output which was a key point in chapter 10.

Rebecca Eddy (Wednesday December 8, 2009)

What we did:

• Marked the homework from Tuesday and then handed it in (blood flow from capillaries back to capillaries in reverse).
• Went through page 320.
• Learned about heart sounds.
• Learned about heart beats and took notes on them.
• SA and AV nodes. 
• Gave us the pig dissection sheet for Wednesday.

Key Definitions:

• Myogenic muscle: Muscle that contracts due to nerves within the tissue.
• Node: Cluster of nerves.
• SA and AV nodes: The SA node acts as a pacemaker and is located in the upper right atrium. The AV node acts as the conductor and they both send nerve impulses. The SA node activates the AV node.
• Purkinje fibres: Fibres coming from the AV node to the bottom of the ventricles and then branch upwards. 
• Systole: Pressure in circulatory system due to ventricle contraction.
• Diastole: Blood pressure in circulatory system due to relaxed ventricles.
• "Lubb": The sound that the closing of AV valves makes. It is louder than "dubb".
• "Dubb": The sound that the closing of semilunar valves makes.

Thoughts and Opinions:

I think that there was alot of definitions to take in. After studying a bit though, it was pretty easy to understand. I think the most difficult part to understand was the SA and AV nodes.  

Above and Beyond:

    
This is a picture of the heart that shows you where the AV and SA nodes are. It also shows you the way the nerve impulses go.

Shannon Eslinger (Dissection Day!)

The Plan For Today:

Recap:

-purkinje fibres

-hearbeat
     -pace maker?
-heart sounds? Lub dub

Purkinje Fibres: a nerve fibre that branches and carries electrical impulses throught the ventricles

The normal heart sound is typically described as "lub-dub." The "lub" sound is usually softer and longer than the "dub", and it is associated with the closing of the A-V valves at the beginning of systole. The sounds are also amplified by the chest, making them more audible. The sounds of the heart are only from the valves closing, not opening. The "lub" is the first heart sound. The "dub" sound is shorter and louder than the "lub" sound. It is associated with the closing of semilunar valves (aortic and pulmonary). The sound is shorter and louder because the cusps of the valves are more rigid than the mtral and tricuspid valves. - http://library.thinkquest.org/C003758/Function/Sounds.htm

1) Dissection

     -overview

     -safety (goggles and gloves)

     -group of three

     -clean up

2) Chapter 10 Test (However we didn't get to that part so study up for tonight) The test will be on Dec 9, 2009 (Thursday) and the ticket is due as well (Pg.346-347 #1-5, 7 , 9-11, 13, 14, 17, 18)

Thoughts/Opinions

The pig heart dissection was amazing.. stinky... but amazing. It involved a lot of snipping and slicing away at membrances and fat. We got to take a look at where the valves were and the arteries and the ventricles. It was double Bio today so we dissected in both blocks. Yeah, right before lunch, just wonderful! But overall it was a pretty sweet class that flew by... unlike other bio classes :) just jokes.

Above and Beyond

This is actually a picture of a human heart but it is similar to a pig's heart. As you can see there are the valves and whatnot which I think we should have seen but they were sort of tricky. For those who missed this class, I feel sorry for you...you missed a great class.

Cordel Evans wednesday class.

Class review: We talked about the heart beat on wednesday. He explaind some terms concerning the heart beat. Miogenic muscle witch is muscle that contracts due to nerves with in the tissue buy its self. The nerves in a heart help the muscles contract. He also talked about SA nodes and AV nodes. SA and AV nodes send a nerve message to the tissue of the heart telling it to contract and relax. SA sends to atruim and AV sends to Ventricular. We also talked about purkingi fibers that exept the message from the nerves. Systole means preasure in the circulatory system due to ventricular contractions. Distole means presure due to relaxed vventricles.

some aditional questions are how the SA and AV nodes are developed through embriology? An opinion is that we should go through the material more slower so we get a beder understanding.

Tiffany Courchesne December 2nd 2009 (second)

What We Did

- Test about digestion

Thoughts/Opinions

-The test was rather difficult
- It was hard to know all of the function of the secretins ( tripsin, erepsin, pepsin etc...)
- The whole thing went very fast. ( i am guessing its to get us ready for next year)

Above and Beyond

This is a more complex look at the digestive system this tells me that there is a lot more that we could have learned. like the transvers colon, the hepatic flexure and many more