[Science] The human body online

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sur said:
Thanks.


Answer is Tooth Pulp. (core inside tooth)


Next Q:-
What artery does not carry clean(oxygenated) blood???
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Ok i know this one, pulmonary artery. :coolious:
Ive also studied human anatomy, its amazing. it makes you greatful of allah and how great allah is.

ok brother clever clogs lol, how many bones are there in the foot?

thats to easy for you im sure!
 
sabah said:
Ok i know this one, pulmonary artery. :coolious:
Ive also studied human anatomy, its amazing. it makes you greatful of allah and how great allah is.

ok brother clever clogs lol, how many bones are there in the foot?

thats to easy for you im sure!
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Salam

OOh, let me join in please......lets see what i learnt at uni.

Its 52 bones in the two feet altogether.

Why are the number of bones in a newborn baby higher than in an adult ?
 
right. Good to see so many anatomists here. :)



how many layers Greator Omentum is made of, when 1st formed???
 
^^ im not an anatomist ... i will be a doctor tho..inshallah...as u can see im 15 i got no job..lol
 
truemuslim said:
^^ im not an anatomist ... i will be a doctor tho..inshallah...as u can see im 15 i got no job..lol
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InshAllah.

Docs also read Anatomy don't they.


Back to Q, how many layers Greator Omentum is made of, when 1st formed???
 
^^ 4?


and also i meant i cant be an anatomist..YET...lol

i dunt wanna do a question..kk. u or someone do the next one..IF my answer is right
 
yes. it's 4. 2 anterior & 2 posterior layers of lesser sac.


Q:-
main muscle used while tightening a screw???
 
okey i just answered the ones i remember from last year in school and my class a week ago or so.lol. otherwise i isnt a doctor (yet) or nutin ...anyway i cant do this one...i think..
 
Tightening a screw is process of supination of forearm. &

Main supinator of forearm is Biceps-Brachii.



Next Q:-
why some use radial artery at wrist to commit suicide???
This is especially famous method in Japanese.
 
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^^ aw dang that was an easy one... i was gonna answer but then i remembered my class.lool.im in class right now and on LI and eating at the same time..lo..dunt u just love homeschool,....my teacher is tardy for class..LOL. next one?
 
Next Q:-
why some use radial artery at wrist to commit suicide???
This is especially famous method in Japanese.

what is "homeschool" by the way?
 
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^ lol i check that answer later im in a middle of a class right now and my teacher can take a screen shot of my screen to make sure i am in class so i gota hurry and BTW homeschool is school at home..the one im at has online classes and all...

okey class is done so... This entails cutting through the wrists and may damage the tendons, ulnar and median nerves which control the muscles of the hand, which can result in temporary or permanent reduction in sensory and motor ability (if one survives). Wrist slitting is usually not fatal and it is thought that of all suicide attempts using this method, only 1% succeed



where do u get all these questions? lol very good brother
 
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truemuslim said:
okey class is done so... This entails cutting through the wrists and may damage the tendons, ulnar and median nerves which control the muscles of the hand, which can result in temporary or permanent reduction in sensory and motor ability (if one survives). Wrist slitting is usually not fatal and it is thought that of all suicide attempts using this method, only 1% succeed
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what i know is that, normally when an Artery is cut it contracts to stop blood flow & save from blood loss.

While walls of Radial Artery r fixed by surrounding connective tissue at wrist, so do NOT collapse when cut & thus blood flow does NOT stop & person faints & dies of blood loss.

where do u get all these questions? lol very good brother
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Anatomy books usually have a section at end of each chapter, called "Applied Anatomy". That's where u find practical application of anatomy u learned in that chapter.

= = = = = = = = = = = =

Next Q:-
It's from Physiology, if that's OK. When we see on TV, video recording of a computer screen(Monitor), we see frames moving up. While we don't see any frames moving up when we look monitor directly, WHY???

Similar reason causes us to see spokes of tyre or blades of helicopter, moving too slow while they r turning very fast or moving in opposite direction of their actual direction.!!!
 
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sur said:
what i know is that, normally when an Artery is cut it contracts to stop blood flow & save from blood loss.

While walls of Radial Artery r fixed by surrounding connective tissue at wrist, so do NOT collapse when cut & thus blood flow does NOT stop & person faints & dies of blood loss.


Anatomy books usually have a section at end of each chapter, called "Applied Anatomy". That's where u find practical application of anatomy u learned in that chapter.

= = = = = = = = = = = =

Next Q:-
It's from Physiology, if that's OK. When we see on TV, video recording of a computer screen(Monitor), we see frames moving up. While we don't see any frames moving up when we look monitor directly, WHY???

Similar reason causes us to see spokes of tyre or blades of helicopter, moving too slow while they r turning very fast or moving in opposite direction of their actual direction.!!!
Click to expand...


oh ok thanks bro..:D

:w:
 
sur said:
Next Q:-
It's from Physiology, if that's OK. When we see on TV, video recording of a computer screen(Monitor), we see frames moving up. While we don't see any frames moving up when we look monitor directly, WHY???

Similar reason causes us to see spokes of tyre or blades of helicopter, moving too slow while they r turning very fast or moving in opposite direction of their actual direction.!!!
Click to expand...

That is a technical question:

Take a spinning wheel, f.ex. the human eye can only capture 25 images a second, max. As long as the wheel spin less than 25 rotations per second, you can see a forward move of the wheel. As soon as the speed of the wheel exceed 25 rotations per second ( 25Hz), in that case, the human eye cannot follow anymore and you get the illusion, the wheel is spinning backward.
The same is for Helipcoter Blades, or movie on a screen in a movie, where here, the Frequency on the Screen in the movie is also relevant.

Note: When the speed of the wheel is exactly 25Hz, means 25 rotations per second, then you have the feeling, the wheel is not moving at all, because the 'shutter'-speed of your eye has also 25 frames a second.

In Nature, you have animals, or Insects, which have more frames per seconds. A simple fly can beat us easily. They have more than 200 frames a second, thats why, a human's move look for a fly like a slow motion. Thats why they can escape us so easily.
 
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guyabano said:
That is a technical question:

Take a spinning wheel, f.ex. the human eye can only capture 25 images a second, max. As long as the wheel spin less than 25 rotations per second, you can see a forward move of the wheel. As soon as the speed of the wheel exceed 25 rotations ( 25Hz), in that case, the human eye cannot follow anymore and you get the illusion, the wheel is spinning backward.
The same is for Helipcoter Blades, or movie on a screen in a movie, where here, the Frequency on the Screen in the movie is also relevant.

Note: When the speed of the wheel is exactly 25Hz, means 25 rotations per second, then you have the feeling, the wheel is not moving at all, because the 'shutter' of your eye has also 25 frames a second.

In Nature, you have animals, or Insects, which have more frames per seconds. A simple fly can beat us easily. They have more than 200 frames a second, thats why, a human's move look for a fly like a slow motion. Thats why they can escape us so easily.
Click to expand...

that's good; i wasn't expecting anyone to answer this.
though the figure i read was that human eye can retain image for 1/10 th of a second.
 

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