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Author Topic: Biology Paper 2  (Read 2952 times)

Offline Sticky

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Biology Paper 2
« on: May 12, 2010, 10:13:08 pm »
Heyy Guys


Biology Paper 2 On Friday, How Are Your Preparations & Any Doubt or Predictions Please Post Them Here To Help Everyone Out :)


i have a question myself

nov 08, first variant, last question about water

thanks :D
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Offline fuhaid

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Re: Biology Paper 2
« Reply #1 on: May 13, 2010, 04:33:35 am »
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Offline Sticky

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Re: Biology Paper 2
« Reply #2 on: May 13, 2010, 07:35:39 am »
Some one help with my question please guys :(

thanks :)
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Offline winnie101

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Re: Biology Paper 2
« Reply #3 on: May 13, 2010, 09:16:04 am »
are aortic valves the same as semilunar valves
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Offline Sticky

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Re: Biology Paper 2
« Reply #4 on: May 13, 2010, 09:35:28 am »
No semi lunar valves are in the right side of the heart in the pulmonary artery, its the same as TRISCUPID valve

aortic valves are in the left side of the heart and it prevents blood flowing backwards from the left ventricle to the left atrium, its the same as BICUSPID valve
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Offline Sticky

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Re: Biology Paper 2
« Reply #5 on: May 13, 2010, 09:37:07 am »
Sorry Sorry semilunar valves are NOT the same as triscupid valve.


triscupid are the same as bicuspid but in the right side of the heart. i.e prevent back flow of blood from right ventricle to right atrium

but yes aortic valve and bicuspid valve are the same not semilunar valve
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Offline XaM!!

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Re: Biology Paper 2
« Reply #6 on: May 13, 2010, 09:42:08 am »
but aorta doent have any valves... remember only veins have valve...
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Offline Sticky

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Re: Biology Paper 2
« Reply #7 on: May 13, 2010, 09:49:17 am »
sorry sorry this is my bad, i messed the whole thing up, here's everything in the attachement
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Offline Sticky

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Re: Biology Paper 2
« Reply #8 on: May 13, 2010, 09:57:22 am »
therefore semilunar valves ARE NOT IN THE HEART AND ARE IN VIENS ONLY FOR EXAMPLE VEINS IN THE LEG, WHEN THE SKELETAL MUSCLE PUSH ON IT SO BLOOD CAN FLOW UPWARDS, THE SEMILUNAR VALVES PREVENT BLOOD FROM GOING BACKWARDS :D
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Offline osmosis

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Re: Biology Paper 2
« Reply #9 on: May 13, 2010, 10:06:32 am »
there are semilunar valves in the heart.....between the ventricles and the aorta/pulmonary artery....
from left atrium to left ventricle is bicuspid valve, from right atrium to right ventricle is tricuspid valve.
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Offline Sticky

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Re: Biology Paper 2
« Reply #10 on: May 13, 2010, 10:11:51 am »
the valve between ventricle and aorta is called aortic valve right?

this brings me to this question, semilunar valves is one valve only? or a type of valve or what?
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nid404

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Re: Biology Paper 2
« Reply #11 on: May 13, 2010, 10:14:59 am »
it's called the atrio-ventricular valve


semilunar valves are present in all veins,apart from the aorta and pulmonary artery, hence they are a type of valve
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Offline Sticky

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Re: Biology Paper 2
« Reply #12 on: May 13, 2010, 10:32:47 am »
exactly nid404, Thanks =D
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nid404

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Re: Biology Paper 2
« Reply #13 on: May 13, 2010, 10:46:05 am »
recko?  ::)
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Offline help exam

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Re: Biology Paper 2
« Reply #14 on: May 13, 2010, 10:47:03 am »
wts da questions gonna be like tomorrow??????????
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