Skip to main content
Wikispaces Classroom is now free, social, and easier than ever.
Try it today.
Pages and Files
Insulin & Diabetes
Insulin and Diabetes
- - - - -
- - - - -
Mr. Truss' Science Links
Contact Mr. David Truss
Or check out his:
- - - - -
Table of Contents
Welcome to our wikispace on this page Mitch and Connor [[#|will]] further your knowledge about reflexes.
You [[#|will]] [[#|learn]] what they are, what type of reflexes there are and how reflexes work
in everyday life.
WHAT ARE REFLEXES?
a reflex is an involuntary action that are body does without thinking. Some examples of this include pulling your hand away from a hot object and closing your eyes when you look into a bright light. Reflexes are controlled by the spinal cord. It works by the spinal cord sending a message to the muscle telling it to react. Even something as simple as blinking, sneezing or even coughing is considered a reflex. Another type of reflex is the patellar or the knee jerk reflex. This happens when [[#|contact]] is made with the patellar tendon. Which makes the lower part of your leg [[#|move]] involuntarilly. This reflex is important in keeping your [[#|balance]].
Babinski's sign is a type of test that tests whether you have a spinal cord or brain disease. The test is done by testing the
reflexes of the bottom of your [[#|foot]]. The doctors can tell if you have a spinal or brain disease if when they poke the bottom of your [[#|foot]] you big toe come upwards towards you and the rest of your toes [[#|fan]] out this is Babinski's sign,which means you have
a spinal cord or brain disease. A healthy response to this test is when your toes curve inward and your foot everts. This means you
THE RULER DROP
Our hypothesis is that sex [[#|will]] not matter in this experiment but on the other hand we do think that age will effect our results quiet a bit. We think that the younger group of people will have sharper and better reflexes than the older group of people.
1) Sit volunteer down at table
2) Hold [[#|ruler]] about 2 inches above his/her hand
3) Having the zero end of the ruler closest to his/her hand
4) Ask if the volunteer is ready
5) Once they respond "yes" we will wait a moment before dropping the ruler
6) So that they are not completely ready for it but they do know that it is coming
7) Drop the ruler and calculate where they have grabbed it
8) Do this five times
9) Take aways the volunteers best and wost scores
10) Do this for 10 grade 8 males, 10 grade 8 females, 10 adult males and 10 adult females
11) After this is all complete we will average out each of the groups scores and see whether age or sex makes a difference in how fast or sharp your reflexes are. Maybe they both make a difference maybe neither of them do.
: After carefully looking at the results from our expirement Connor and I have come to the conclusion that age was not the biggest factor in this expirement but sex was. If you look at the graph shown above it shows that the males won between the adults and the males won between the grade 8. Another interesting thing about the information we have gathered is how close the to female groups are ( with in two tenths or a second.) Some things that I have learned from this expirement are that males have better reflexes than females and that younger males have the best reflexes. A question that we still have is what other type of things can effect how fast or slow your reflexes are. Does music have an effect on your reflexes, do your surroundings. Or I wonder if you would have better reflexes after just finishing a sport compared to just climbing out of [[#|bed]]. These are some of the questions that Connor and I still have. One major thing the we learned during this experiment is that our hypothesis is completely wrong we said that sex would not have an effect and age would where as if you look at the graph above you see that it is the opposite way around sex has a big effect on reflex speed and age has very minimul effect on it. We think that this has been a very productive project because we have learned alot about a topic that we really enjoy learning about.
We have learned alot of things about reflexes while doing our page. We learned that there are different types of reflexes like the knee-jerk reflex or the pateller reflex. One thing that shocked us was when we found out that something as simple as blinking or sneezing is considered a reflex. Also we learned that the spinal cord is acually the main thing that controls all your reflexes and the great thing about reflexes is that you dont even think about the action your doing you just do it because of your reflexes. But the main thing we learned and were trying to learn was whether or not age and gender had anything to do with how good your reflexes are. So we did a ruler drop experiment which we think went very well and we think we did a good job on it. One thing we think we could have done better to make the results even more accurate is use 15 or 20 people to experiment on instead of 10. But judging from our experiment we noticed that gender might have something to do with your reflexes. If you take a look at our graph you will notice that males have the top 2 scores for both genders. With the adult males and grade 8 males having better scores than both adult females and grade 8 females. Also what we noticed from our graphs is that age does not effect your reflexes that much. If you take a look at the females the adult females acually have a better score than the grade 8 females. But then for the males the grade 8 males have a better score than the adult males. So judging from our results you can now debate that yes gender might have something to do with how good your reflexes but does age? We dont think so. But what we do know is that this experiment was well worth it because we got to learn about something that interests us and we think both think that we both worked very well and hard on this project. We both did even amount of work and we both put in good effort and were both happy that we got to learn more about reflexes.
TEST YOUR REFLEXES!
The high score so far for the reflex tester is .006!! by Joe if you beat this score send a message to MitchHelium.
Hello everyone Tyler and jake would like to inform you on you on the wonderful world of your sport reflex's. We will be going through our experiment and our knowledge hoping that you know about the way they work and the way you can improve them
Here are some ways that have allready been tested and proven to work go give them a shot and tell us what happens
Before you look at anything you have to check out our extra project
(Mr. Truss don't look untill you mark it)
This is the site that we are making on sports reflexes it will have detailed information on reflexes and how they work, rather then just doing an experiment. In doing this we hope to expand your intellegence about reflexes and how the work. Use this site to find out what we are talking about:
Tyler: I think that the music will be the most effective for most people because while your blasting your favorite song you will either be singing along or else your brain is going to be memorizing the song and then as you go out to play you will be still singing and rocking out which in turn will keep you awake and your reflexes sharp.
Jake: I agree with Tyler I think that the music will be the most effective. Just because I am a lacrosse player and before every game I am trying to find new ways to get my game to a new height. So when I am in the dressing room I am always lisitning to my favourite song and gettin really excited to go and play. So when I hear that song my reflexes and my mind get focused on the game. So I belive from first hand experience that the music will be better for you.
1) Ben,Tyler, and I will all stay up late and get little or no sleep at the 24 hour famine where as tyler will get lots of sleep at his house :)
2) When the famine is over Ben and I will go directly to tylers house
3) Then tyler will take shots on Ben and myself and see how many we can save out of ten
4) Then Ben and I will have an energy drink. Tyler will take 10 shots on us.
5) Calculate the results
6) See if energy drinks improve your reflexes
7) Then you have your full 12 hours of sleep
8) Next day do the same thing. except you have some sleep
9) Shoot ten shots on ben and see how many he saves
10) Calcualte the results
11) Give ben an energy drink shoot ten shots
12) Calculate the results and see what helps you more
Here are the first stage of the results. This morning ( April, 28, 2007 ) Jake and Ben came to my place and we started our tests, the first test was when they got here ben suited up and we fired 20 shots at him. Then we did the same for Jake. The second test was to BLAST (and when we say blast we mean the walls were shaking people:) their favorite song and get them all pumped up and then fire 20 shots at them. The third and final test was to give each of them have an energy drink, wait for it to kick in and the fire 20 shots on them.
1st day results:
Ben saved 16 out of 20 (80%) when he was tired, 9 out of 20 (45%) after we played his favorite song, 12 out of 20 (60%) after he had the energy drink. Jake saved 13 out of 20 (65%) when he was tired, 16 out of 20 (80%) when we played his favorite song, 10 out of 20 (50%) vwhen he had an energy drink.
2nd day results:
Ben saved 13 out of 20 (65%) while he was awake, 15 out of 20 (75%) after we played his favorite song and 15 out of 20 (75%) after he had the energy drink. Jake saved 15 out of 20 (75%) while he was awake, 13 out of 20 (65%) after we played his favorite song and 14 out of 20 (70%) after he had the energy drink.
Tyler: After the experiments that we have done, I have leraned that most of your reflexes are better off on their own. I don't think anyone who would try to blast music or have an energy drink will better their reflexes AT ALL, I think this is because they don't actually work! I think it is more of a mental thing, for example before you have an energy drink you know that your going to get hyper but really what is doing this is you thinking you are going to get hyper, so therefore your brain has it set in your head that you are hyper. Most people think this because of the commercials that are on the T.V. It is the same as music before you go to listen to it you think your going to gert pumped up but really your brain is thinking your going to get pumped up so therefore your body responds.
Jake: After the experiment i realized that nothing worked. so our hyphothesis was incorrect. Your reflexes depend on alot of different factors. So you can not clearly test your reflexes. properly. so i have tried to do the best we could. but it is really difficult to do it. but we tried and i personally think that the best way to test your reflexes is to not test them al all. but i really learned something. I learned that tyler can shoot a ball really hard and you can see from the mark on my arm. but i had alot of fun learning about my topic. even though we didnt get the best info we learned alot. My best save percentage was 16/20 that happened when i was pumped up.
Here is a graph of our saves:
Here are some photo's from our experiment:
Thank's Ben for helping us with our experiment!!!
Here is a picture and some information about the reflex ball.
Improve reaction time Improve hand-eye coordination
Balls bounce randomly making them a challenge to catch
For partner use, one individual drops or throws the ball on the ground while the other must catch it on the first bounce
For single person use incorporate wall throws
So this ball can help you with your hand eye cordination and it can help you with your ability to get a ball that is not coming directly at you using only your reflexes.
this is the website tyler and myself went to. we got our information on the reflex ball on this website.
Here is a photo that has the names for the pars in your knee that contributes to you kicking when the doctor hits your knee with the rubber hammer
The photo was courtasy of this site. Please visit this site to get more information on the knee jerk.
Here is a page that tyler and myself have found. The best time was .007!! that was placed by tyler. if you get a better time then leave a a comment on the discussion page and we will update it
Here is a funny picture that I hope will tickle your funny bone. Which by the way is a reflex : )
*What we could do better*
Tyler and myself could have made our experiment more accurate by testing it on more than two people. we should have done upwards of 5-10 people
*What went well*
We think that the experiment went well we were able to test Ben and Jake with out any problems. The whole idea of our extra project that we are working on has went well so far. We are not quite finished yet. we have to do one more experiment on may first and then we will add our observations.
*changing our hyphothisis*
Tyler- If I were to change my hypothesis it would go something like this: I belive that nothing will do better for some people and music will be better for people. I think this because some people work better or focus better when they just done their regular schedual and not done anything different or out of the ordinary.
Jake- If I were to change my hypothisis it would go something like this. I would pick that if you were to just come and do it you would be better. because if you are just starting then you will be way better becasue if you go through 20 shots then 20 more shots by the time you are on your third round you are dead. So if i was to change my hyphothesis then it would be with nothing at all would be the best
Tyler's evaluation of himself: I believe that I contributed to the group in a positve way. I could have done more work on my own time so overall i would give myself a 8/10 (80%).
Tyler's evaluation of Jake I think Jake did a good job helping the group just like me he could have done more at home on his own time rather then just in class. Overall I would give him an 8/10 (80%) as well.
Jake's evaluation of himself: I think that I did pretty good. But I wish that I had done some more work at home. Because we could have done alot more on our own time but overall I would give myself an 80 out of 100.
Jake's evaluation of Tyler: I think that Tyler had done a perfect job when he was working. He was really good becasue he did alot of work at school and he did alot at home. I am really glad that I choose Tyler to work on this project with me.Overall his score would be 95 out of 100
*Why we chose this project*
Jake: I chose to do this project becasue it was something that I go through everyday of the week. Being a lacrosse player I usually need to use my reflexes to my advantage. So I chose this topic to learn some more about it. Now I can use my knowledge of my reflexes to my advantage during a lacrosse game or during basketball.
Tyler: I chose to do this project because I felt it would be an interesting project to learn about and it would also be an easy topic to relate personally to. I also chose this project to teach my peers about reflexes and how they work and how you can use them to their advantage.
This is my project on muscles. I have learned so much about muscles by doing this project. I wish I could have more time because there is so much to learn about muscles and about how they work. Without muscles you would not be alive you would not be abled to move and you could not do anything. That is why muscles are so important. I think muscles are so interesting and after you read my page i hope you will find it interesting too.
There are three types of muscles in the human body. There are skeletal muscles, smooth muscles and the cardiac muscle
Skeletal muscles are the muscles that we can see. For example we can see our bicep and tricep muscles. When body builders workout they olny work there skeletal muscles. Skeletal muscles are attacted to your skeletan only. There is a muscle on both sides of the bone so it can move both ways. All skeletal muscles usually move voluntarilyor you need to think about moving it.
Smooth muscle is found in the bladder, blood vessels, digestive system and airways. Smooth muscles can stretch and can stretch for a long time. It contracts involuntarily, that means you dont think about contracting it because your nervous system takes care of it automatically.
There is only one cardiac muscle in the human body, your heart. It can stretch like a smooth muscle but can also contract with with the force of a skeletal muscle. It only contracts involuntarily.
how muscles work
All three types of muscles work differently. Skeletal muscles move and support our skeletan. Did you know skeletal muscles make up more than fifty percent of your body weight. A skeletal muscle links from one bone to one other. Muscles are arranged in layers over your bones. Those nearest to the skin are called superficial muscles. The muscle closest to the inside of the body are called deep muscles. Did you know there are six hundred and forty individually named skeletal muscles in the human body. Skeletal muscles contract by getting shorter just like this diagram of the human arm. when a skeletal muscle contracts it gets short and bulgy. In the picture on the (bottom left) you can see it is a picture of a human arm, in that picture the arm is bent. The muscle that makes it move that way is the bicep muscle which is short and contracted. in the picture on the (bottom right) you can see it is a human arm and it is straight. The muscle that makes the arm move in that way is the tricep muscle. It as you can see is also contracted so it shortens and gets wider. In both pictures the muscles are connected by a tendon on each side and the tendons are attached to bone thats why they get the name ''skeletal muscles''.
Smooth muscles are found in hollow organs like the stomach, intestines, blood vessels and the bladder. smooth muscles are arranged in layers with the fibers going in a different direction each layer. This lets the organ contract in all directions. All smooth muscles only move involuntarily. This means you cannot consciously move them. Smooth muscles are under the control of the autonomic nervous system. This nervous system controls lots of things without us even knowing about it.
Cardiac muscles are striped kind of like skeletal muscles. These muscles contract automatically so they can squeeze the walls of the heart. Did you know that your heart beats one hundred thousand times a day nonstop. It can do this because of the cardiac muscles. your heart never stops or else you would die.
This information is from these sites:
An interesting question:
Mr. Truss asked why there are three parts of the tricep muscle but there are only two parts of the bicep muscle.
The different parts of the muscle are called heads. The triceps have three heads, the lateral head, the medial head and the long head. The two heads of the bicep muscle is the short head and the long head. With the triceps the long head attaches from the shoulder to your humerus or upper arm bone. the medial head and the lateral heads attach from the humerus and go to your ulna or lower arm bone. so the long head lets your arm go to your side and back. The lateral and medial heads let your lower arm go straight. For the bicep muscle both heads attach to the raduis but attaches to the shoulder bone in two different places. the long head lets you turn your palm up or down. the short head is stronger and it lets you bend your forearm. So that is why there are three parts of the tricep and only two parts of the bicep muscle. That is also how they got there names ,triceps "tri means three". biceps "bi means two".
If anybody has any questions about muscles I would be happy to answer it.
Fast twitch muscle fiber and slow twitch muscle fiber
Fast twitch and slow twitch muscle fibers do the exact opposite performance wise. These two different fibers are found in all muscles. Fast twitch muscle fibers let you do short, fast muscle work. But fast twitch muscles tire and fatigue way quicker then slow twitch muscle fibers. fast twitch muscle fibers have few mitochondria and high levels of stored glycogen and necessary enzymes for producing energy without oxygen. Fast twitch fibres exert their effects due to, as their name might suggest, peak-tension facilitation. A sprinter for example will get the best speed due to the force production the peak-tension allows. slow twitch muscle fibers have endurance but with less strength than fast twitch fibers. So someone who is a sprinter would have a lot more fast twitch muscle fibers then a marathon runner who would have lots of slow twitch muscle fibers. Slow twitch fibers are fatigue resistant depending on how intense the excersice is. If the contraction is weak the slow twitch fibers will take control. If the contraction is stronger then it is controlled by the fast twitch fibers.
Determing your exact composition of the two different fibers is basically genetics, or it means your parents gave you how much of each different fibers are in your muscles. You can not change the percentage of the two different fibers in your body. It is genetically set. However over years of training fast twitch muscles can turn into fast twitch muscles with slow twitch properties. But this takes years of endurance training to achieve this. But you cannot change slow twitch fibers to have fast twitch properties. So Ultimately you cannot change the fiber types to have more of one or the other.
Why should you warm up?
I want to find out if warming up before doing a workout will make a difference with your performance compared to going straight to the Exercise.
I think warming up before the workout will help your performance but not by much.
1) Do the warmups which are the same thing as the workout just with lighter weights and not as long.
2) Do your workout while you are warmed up and do as many reps as you can.
3) Record your data.
4) The next day only do the workout only and do as many reps as you can.
5) Record your data.
I think warming up before the workout made a big difference. It actually made a significant difference which suprised me because i didnt think it would make too much of a difference. So that means that my hypothesis was right and wrong at the same time. My Hypothesis said the warm up would only help me perform a little bit better in the workouts. I think it made a big difference with the warm up.
help on how to format text
Turn off "Getting Started"