Comments for bodyroadmap.com http://www.bodyroadmap.com Body Road Map Fri, 26 Jun 2009 16:53:26 +0000 http://wordpress.org/?v=2.8.4 hourly 1 Comment on What is the specific heat capacity of the human body? by Eve Vartan http://www.bodyroadmap.com/what-is-the-specific-heat-capacity-of-the-human-body/comment-page-1#comment-217 Eve Vartan Fri, 26 Jun 2009 16:53:26 +0000 http://www.bodyroadmap.com/what-is-the-specific-heat-capacity-of-the-human-body#comment-217 The average specific heat capacity of a human body is approximately 3500 J/kgK The average specific heat capacity of a human body is approximately 3500 J/kgK

]]> Comment on What is the affect of drinking poluted water in the human body? by Why ask me? http://www.bodyroadmap.com/what-is-the-affect-of-drinking-poluted-water-in-the-human-body/comment-page-1#comment-216 Why ask me? Wed, 24 Jun 2009 12:08:17 +0000 http://www.bodyroadmap.com/what-is-the-affect-of-drinking-poluted-water-in-the-human-body#comment-216 A build up of toxins in the body that will eventually make you sick. Bottled water in not necessarily better because the minerals that your body needs are removed. A build up of toxins in the body that will eventually make you sick. Bottled water in not necessarily better because the minerals that your body needs are removed.

]]> Comment on Can human body be completely dissolved in an acid? by phantomlimb7 http://www.bodyroadmap.com/can-human-body-be-completely-dissolved-in-an-acid/comment-page-1#comment-215 phantomlimb7 Mon, 22 Jun 2009 13:59:13 +0000 http://www.bodyroadmap.com/can-human-body-be-completely-dissolved-in-an-acid#comment-215 Yes, but you will get a lot of sludge. It will not dissolve metallic elements, like fillings or implants. Many murders have tried to dissolve bodies by acids. You can also use a strong base, like Lye, to dissolve a body. Here is a link to a service which offers body dissolution: http://www.msnbc.msn.com/id/24526431/ I would suggest you study "Practical Homicide Investigation" or search under links for "Body Farm" for more specific information. Time to dissolution would depend on the mass of the person, body fat composition and the like. P.S. bones dissolve poorly in acid, they tend to stay rubbery a long time. Yes, but you will get a lot of sludge. It will not dissolve metallic elements, like fillings or implants. Many murders have tried to dissolve bodies by acids. You can also use a strong base, like Lye, to dissolve a body.
Here is a link to a service which offers body dissolution: http://www.msnbc.msn.com/id/24526431/
I would suggest you study "Practical Homicide Investigation" or search under links for "Body Farm" for more specific information.
Time to dissolution would depend on the mass of the person, body fat composition and the like.

P.S. bones dissolve poorly in acid, they tend to stay rubbery a long time.

]]> Comment on How does natural selection account for the symmetry of the human body? by secretsauce http://www.bodyroadmap.com/how-does-natural-selection-account-for-the-symmetry-of-the-human-body/comment-page-1#comment-214 secretsauce Sat, 20 Jun 2009 07:14:03 +0000 http://www.bodyroadmap.com/how-does-natural-selection-account-for-the-symmetry-of-the-human-body#comment-214 Well, I hope you notice that this symmetry doesn't just apply to the human body ... but practically *all* animals ... all primates, all mammals, all terrestrial vertebrates, even fish. In other words, it is all explainable by common ancestry tracing back to an early ancestor that had a symmetrical body plan. So natural selection obviously has some role in preserving this symmetry throughout evolution. The natural selection explanation is that bilateral symmetry provides some benefit ... and so there has never been much pressure to change it. It is useful because it is economical during development of the embryo. The same genetic instructions for building the right hand, will also build a left hand. The instructions for one eye can build the other. Instructions for building the left-side of the rib cage, also builds the right. A more interesting question is why almost all animals have this left-right (bilateral) symmetry, but don't have dorsal-ventral (belly vs. back) symmetry, or anterior-posterior (mouth vs. rear) symmetry. The answer is that these other kinds of non-symmetry are themselves beneficial. Dorsal-ventral non-symmetry (the fact that the belly-side of most animals is different from the back-side) traces back to our ancestors that either swam or crawled with belly-side down and back-side up ... so and the dangers from above are different from the dangers from below. Incidentally, there is absolutely no reason this has to be true for we humans who walk upright ... there's no reason our belly is soft and back is hard ... except that this has some benefit for animals that walk on all fours. Anterior-posterior non-symmetry (the fact that the front of the animal is different from the rear) traces back to our aquatic ancestors, where one end had a mouth, and the other end was for excretion ... so there was obvious benefits to keeping them at opposite ends of the animal. However, there have never been benefits to left-right non-symmetry ... animals are just as likely to get attacked from the left as from the right ... or to find food on the left more than the right. So the benefits of economy in embryology won out. Hope that helps. Well, I hope you notice that this symmetry doesn't just apply to the human body … but practically *all* animals … all primates, all mammals, all terrestrial vertebrates, even fish.

In other words, it is all explainable by common ancestry tracing back to an early ancestor that had a symmetrical body plan. So natural selection obviously has some role in preserving this symmetry throughout evolution.

The natural selection explanation is that bilateral symmetry provides some benefit … and so there has never been much pressure to change it. It is useful because it is economical during development of the embryo. The same genetic instructions for building the right hand, will also build a left hand. The instructions for one eye can build the other. Instructions for building the left-side of the rib cage, also builds the right.

A more interesting question is why almost all animals have this left-right (bilateral) symmetry, but don't have dorsal-ventral (belly vs. back) symmetry, or anterior-posterior (mouth vs. rear) symmetry. The answer is that these other kinds of non-symmetry are themselves beneficial.

Dorsal-ventral non-symmetry (the fact that the belly-side of most animals is different from the back-side) traces back to our ancestors that either swam or crawled with belly-side down and back-side up … so and the dangers from above are different from the dangers from below. Incidentally, there is absolutely no reason this has to be true for we humans who walk upright … there's no reason our belly is soft and back is hard … except that this has some benefit for animals that walk on all fours.

Anterior-posterior non-symmetry (the fact that the front of the animal is different from the rear) traces back to our aquatic ancestors, where one end had a mouth, and the other end was for excretion … so there was obvious benefits to keeping them at opposite ends of the animal.

However, there have never been benefits to left-right non-symmetry … animals are just as likely to get attacked from the left as from the right … or to find food on the left more than the right. So the benefits of economy in embryology won out.

Hope that helps.

]]> Comment on What is the name of the fish that enters inside the human body trough urine? by Malia G http://www.bodyroadmap.com/what-is-the-name-of-the-fish-that-enters-inside-the-human-body-trough-urine/comment-page-1#comment-213 Malia G Thu, 18 Jun 2009 07:13:57 +0000 http://www.bodyroadmap.com/what-is-the-name-of-the-fish-that-enters-inside-the-human-body-trough-urine#comment-213 its called a candiru.for more information http://en.wikipedia.org/wiki/Candir%C3%BA Hope that helps, M.G its called a candiru.for more information
http://en.wikipedia.org/wiki/Candir%C3%BA

Hope that helps,
M.G

]]> Comment on How many electrons are in a human body? by Kyle http://www.bodyroadmap.com/how-many-electrons-are-in-a-human-body/comment-page-1#comment-212 Kyle Tue, 16 Jun 2009 02:24:51 +0000 http://www.bodyroadmap.com/how-many-electrons-are-in-a-human-body#comment-212 Alot. Think many, many zeros. As in 2.3*10^28 Alot. Think many, many zeros.

As in 2.3*10^28

]]> Comment on How do oxygen move in the human body? by aeyn http://www.bodyroadmap.com/how-do-oxygen-move-in-the-human-body/comment-page-1#comment-211 aeyn Sun, 14 Jun 2009 07:12:36 +0000 http://www.bodyroadmap.com/how-do-oxygen-move-in-the-human-body#comment-211 first, our deoxygenated blood from the right part of our body enters the heart and then to the lungs. oxygen that we breathed have been dissolves in the moisture lining the alveolar sac in the alveoli in the lungs. Then it difuse into the blood that pass through lungs. Carbon dioxide will difuse out from the blood into the lungs so this when there is an exchange of oxygen and carbon dioxide. Then the oxygen which has just diffused in the blood will binds with hemoglobin. oxygen will diffuse out of the blood into the cells when it reaches the capillaries. you may want to watch this video; http://www.youtube.com/watch?v=47A7dbXusBU first, our deoxygenated blood from the right part of our body enters the heart and then to the lungs.

oxygen that we breathed have been dissolves in the moisture lining the alveolar sac in the alveoli in the lungs. Then it difuse into the blood that pass through lungs. Carbon dioxide will difuse out from the blood into the lungs so this when there is an exchange of oxygen and carbon dioxide.

Then the oxygen which has just diffused in the blood will binds with hemoglobin.

oxygen will diffuse out of the blood into the cells when it reaches the capillaries.

you may want to watch this video; http://www.youtube.com/watch?v=47A7dbXusBU

]]> Comment on Is there a reason why hair grows in the human body? by Hellbound Angel http://www.bodyroadmap.com/is-there-a-reason-why-hair-grows-in-the-human-body/comment-page-1#comment-210 Hellbound Angel Fri, 12 Jun 2009 02:45:36 +0000 http://www.bodyroadmap.com/is-there-a-reason-why-hair-grows-in-the-human-body#comment-210 all mammals have fur growth in almost all parts of their body. humans being mammals have hair and the only place where hair does not grow is the lips and the top of eye lids. hair growth is not a mechanism for any excretion. but the base of the hair(where the hair follicle is present) has sebaceous gland which produce sebum or oil like substance. all humans do not have similar hair growth. it depends on body fat and the hormonal levels in their body and their ethnicity. and about varying lenghts of hair in different lengths, evolution has caused the growth of hair to be different. if u consider the case of animals, it s almost same everywhere. humans hav learnt to wear clothes and hence able to warm himself in a different manner and hence body hair has become a redundant factor. all mammals have fur growth in almost all parts of their body. humans being mammals have hair and the only place where hair does not grow is the lips and the top of eye lids. hair growth is not a mechanism for any excretion. but the base of the hair(where the hair follicle is present) has sebaceous gland which produce sebum or oil like substance. all humans do not have similar hair growth. it depends on body fat and the hormonal levels in their body and their ethnicity. and about varying lenghts of hair in different lengths, evolution has caused the growth of hair to be different. if u consider the case of animals, it s almost same everywhere. humans hav learnt to wear clothes and hence able to warm himself in a different manner and hence body hair has become a redundant factor.

]]> Comment on What are the two areas in the human body where the 2 systems are connected and how? by Y!A 1042 http://www.bodyroadmap.com/what-are-the-two-areas-in-the-human-body-where-the-2-systems-are-connected-and-how/comment-page-1#comment-209 Y!A 1042 Wed, 10 Jun 2009 07:15:43 +0000 http://www.bodyroadmap.com/what-are-the-two-areas-in-the-human-body-where-the-2-systems-are-connected-and-how#comment-209 Respiratory + Digestive: EPIGLOTTIS AND PHARYNX 1. Both of them meets in the Epiglottis and the Pharynx (both air and food passes through the Pharynx). 2. Food is hampered by the Epiglottis, but it makes Air to pass to the Trachea. Respiratory + Circulatory: ALVEOLI OF LUNGS 1. Interchanging of molecules occur between alveoli and capillaries in the lungs. 2. Deoxygenated blood from the heart goes to the lungs to be oxygenated. Circulatory + Digestive: VILLI OF SMALL INTESTINE 1. As you eat, the nutrients are absorbed by the villi, and then passed on to the bloodstream through diffusion. The circulatory system meets respiratory system in the pulmonary circulation. Respiratory + Digestive: EPIGLOTTIS AND PHARYNX
1. Both of them meets in the Epiglottis and the Pharynx (both air and food passes through the Pharynx).
2. Food is hampered by the Epiglottis, but it makes Air to pass to the Trachea.

Respiratory + Circulatory: ALVEOLI OF LUNGS
1. Interchanging of molecules occur between alveoli and capillaries in the lungs.
2. Deoxygenated blood from the heart goes to the lungs to be oxygenated.

Circulatory + Digestive: VILLI OF SMALL INTESTINE
1. As you eat, the nutrients are absorbed by the villi, and then passed on to the bloodstream through diffusion.

The circulatory system meets respiratory system in the pulmonary circulation.

]]> Comment on How do the human body systems work together? by kira http://www.bodyroadmap.com/how-do-the-human-body-systems-work-together/comment-page-1#comment-198 kira Mon, 08 Jun 2009 13:37:21 +0000 http://www.bodyroadmap.com/how-do-the-human-body-systems-work-together#comment-198 Well the nervous system, for starters, gives instructions via electrical pulses to every nerve etc as to what to do and so forth, it's basically the "power house." It tells all the organs to do what they do. The digestive system breaks down nutrients which enter into the bloodstream, thus involving the circulatory system. The circulatory system pumps blood into the lungs and the lungs pump oxygen into the blood, thus connecting the circulatory and respiratory systems. The skeletal system protects all these organs and organ systems, and the muscles are responsible for much of the action in the organs, as well as being connected to the bones of the body for mobility. The skin covers it all in one package. Well the nervous system, for starters, gives instructions via electrical pulses to every nerve etc as to what to do and so forth, it's basically the "power house." It tells all the organs to do what they do.

The digestive system breaks down nutrients which enter into the bloodstream, thus involving the circulatory system. The circulatory system pumps blood into the lungs and the lungs pump oxygen into the blood, thus connecting the circulatory and respiratory systems. The skeletal system protects all these organs and organ systems, and the muscles are responsible for much of the action in the organs, as well as being connected to the bones of the body for mobility. The skin covers it all in one package.

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