Archive for November, 2008
Lizard’s Tail (continued)
Posted on November 29, 2008, under Personal.
As I already said I will upload the video for u. Here it’s:
The video quality seems very blur so hope u all don’t mind. Anyway, it’s so exciting! My first time ever since 16 years ago borne and now really see how was the tail’s twisted and moving by itself without body. Amazing!
I already found the reason why:
The muscles in the tail, as with other skeletal muscles in the lizard’s body are innervated by nerves. These (peripheral) nerves branch from the central nervous system which is made up of the brain and spinal cord. The spinal cord extends from the brain, down the length of the spine (or most of it anyway) including into the tail region. When the tail is detached from the rest of the body, ie. it is no longer connected to the brain, it remains in contact with the spinal cord and any associated ganglia (nerve concentrations) which can continue to innervate the muscles as long as ATP (for ion pumps, muscle contraction etc.) is available; so the brain does not actually have any input into these movements in this situation. Obviously, when the tail is intact, the brain would responsible for controlling voluntary muscle contractions throughout the body. I suspect there might be some reflex mechanism involved here as well.
If u found the video is no longer available then click here
Lizard’s tail!
Posted on November 28, 2008, under Phone Blogging.
Brand new blog post from mobile!
Posted on November 24, 2008, under Phone Blogging.
Today Neway (Karaoke)
Im back
It’s a long long time already didn’t post something due to the 3 consecutive weeks of the final year exam. Quite tough for me because there’s a lot of challenge for this time like afraid whether I can pass my add math as I’m not keen in add math, how to get an A1, control myself for not sleeping and… Quite confusing. OC, I already get my add math result as Mr. Heng (my add math teac.) is really a fast performing teacher in our school. He can pass to us the question paper on the next day we had our AM exam. I can call him a ‘Superman’ instead. Anyway, back to the topic, I PASS MY AM by scoring a 50% marks. Thanks to Melissa Chang for taught me quite a lot about dy, dx and blah blah blah. For those who are having their SPM tomorrow, good luck especially Esther. Sorry for no time to sign your biodata book. Don’t play a lot of msn, SMSing and dot dot dot Goooooooooooooood Luck!