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Why can't the human baby walk after birth?

Human Anatomy, Physiology, and Medicine. Anything human!

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Re: master project

Postby shreekalivijey » Sat Jul 02, 2005 2:34 pm

why human baby can't walk after born
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Re: master project

Postby Chris4 » Sat Jul 02, 2005 3:06 pm

shreekalivijey wrote:why human baby can't walk after born


:? What has that question got to do with the topic? Why should a baby be able to walk after it is born. It talks a while to learn stuff after you are born, walking being one of them. Its just nature. It would be ridiculous if when you were born you could walk, talk and go straight into university. :D
It's always funny until someone gets hurt. Then it's just hilarious.
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Postby MrMistery » Sat Jul 02, 2005 5:05 pm

Actually there are a lot of mamals that have babies which can walk right after birth. Walking for them is an instinct. Human babies are not able to walk after birth for a very good reason: The motor fibres start secreting their mielin sheath 2 months after birth. At about 2 years the process is completely... So if your kid is walking at 2 months he has a genetic mutation :wink:
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Postby victor » Mon Jul 04, 2005 7:50 am

Genetic mutation??beneficial or harmful?? :lol:
Myelin is used for making the impuls faster isn't it?? so you mean like babies can't walk becasue of the slowlyness of the impuls that comes from MO?
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Postby James » Mon Jul 04, 2005 11:48 am

That's the point, it is neither beneficial nor harmful to walk at birth for humans in our modern society. Thus, natural selection does not favour this, unlike other animals such as giraffes
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Postby chemistry_freako » Mon Jul 04, 2005 2:46 pm

Yea - pretty true - imagine if a pregnant lady gives birth to a baby, and it walks to her immediately =\ :wink:
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Postby victor » Thu Jul 07, 2005 6:30 am

chemistry_freako wrote:Yea - pretty true - imagine if a pregnant lady gives birth to a baby, and it walks to her immediately =\ :wink:

And say, "mom, is he my father?".. :lol:

Oh wait...talking about ability...all of our ability is controlled at our cerebrum which is divided into lobus: frontalis, temporalis, osipitalis and the others (I forgot the name..).
Which one control the ability to walk?
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Postby James » Thu Jul 07, 2005 11:42 am

Our cerebellum coordinates movement, and is key to the ability of walking.
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Postby victor » Thu Jul 07, 2005 12:15 pm

If the child can't walk on the early age...is it because his/her cerebellum hasn't functioned??of it's just like Andrew said...it's connected with motor fibres and muscles??
If it like that what about the animal which can walk after it was born in the early age??
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Postby MrMistery » Thu Jul 07, 2005 5:42 pm

It has nothing to do with the development of the cerebellum. The cerebellum also comands muscular tonus and modulates movement and the baby can do that.
Anatomy 101: the baby's nervous system is fully developed at birth. It only lacks synapses.
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Postby James » Thu Jul 07, 2005 10:40 pm

The brain helps us to coordinate walking, but babies cannot walk due to MrMistery's reason, and in fact they probably couldn't support a head 1/4 size of their body anyway.
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Postby victor » Fri Jul 08, 2005 8:51 am

@James
I think that's called the coordination system between nerve and muscle hasn't coordinate prfectly to each other..
@Andrew
Thanks for the anatomy 101...any other else?like 102, 103, etc.... :lol:
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