Human body Definition and 133 Threads

The human body is the structure of a human being. It is composed of many different types of cells that together create tissues and subsequently organ systems. They ensure homeostasis and the viability of the human body.
It comprises a head, neck, trunk (which includes the thorax and abdomen), arms and hands, legs and feet.
The study of the human body involves anatomy, physiology, histology and embryology. The body varies anatomically in known ways. Physiology focuses on the systems and organs of the human body and their functions. Many systems and mechanisms interact in order to maintain homeostasis, with safe levels of substances such as sugar and oxygen in the blood.
The body is studied by health professionals, physiologists, anatomists, and by artists to assist them in their work.

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  1. R

    What is the Maximum Amount of Chemical Energy Stored in a Human Body?

    I only have a basic knowledge biology, but I've wondered about this before. From a "fully charged" adult male human to dying of lack of nourishment; in case of chemical energy from food, this is often said to be three weeks. If it takes that long for a human to lose energy, how much is...
  2. B

    How are animals digested in the human body?

    When humans eat steak , the human body converts those animal protiens into human protein. how does the body actually does that ? does it break down the animal protein into its subsequent amino acids or just repair its 3D structure to match that of the human protein structure without breaking...
  3. K

    Is there Gravity inside the human body?

    Is there Gravity inside the human body?
  4. A

    Can the Human Body Create EM Fields to Affect Electronics?

    To star this post off, I would like to say that I am in not an expert in any field of physics but I do have an interest. So, my question is... Can the human body produce an EM field that is strong enough to affect electronic devices? Examples. computers- I'm pretty competent with them...
  5. A

    Exploring Human Body Wave Lengths: What Does It Mean?

    Hi We have talked in school about waves and I heard that our bodies have a wave length. What does it mean? I know it's very little. I do not mean our brain but our entire body. Any good explanation would be appreciated.
  6. K

    General Relativity and the Human Body

    In SPH 4U1, (Ontario Grade 12 Physics) we learn the attempts to stop the affects that the human body experiences when in prolonged periods of time in space; such as muscle decay, loss of bone density, etc. So we learn of the attempts to use centripetal force and angular motion to cause a 9.8...
  7. fluidistic

    Most sensitive part of the human body

    Hello, I've been taught in high school that the most sensitive part of the human body was the index finger. However recently I've read that it is the clitoris... But I've a doubt if it is true. I'd like to know the sensitivity of the human eye. I don't have any anatomy book nor medical...
  8. M

    How much power is radiated by the human body?

    The power per unit area radiated by an ideal blackbody radiator is P/A = σT4, where P = power, A = surface area, the Stefan-Boltzmann constant is σ = 5.67 ×10−8 W m−2 K−4, and T = temperature (in the absolute kelvin scale). How much power is radiated by the human body? Calculate the total...
  9. M

    Thanks.Exploring the Possibility of Transferring a Human Brain to a Cloned Body

    Hello, Would it be possible to clone a whole new human body and then transfer your existing brain to the clones body. Would that be like having a fresh new body? Would you be able to live forever if you repeated the process? I'm sure that there would be many complications. However if they...
  10. DaveC426913

    Is the human body topologically equivalent to a donut with multiple holes?

    I understand that topo-physiologically, the human body is a donut. i.e. not only are we a donut physically, but we are a donut as an organism. Our skin is an interface between the outside world and the inside of our bodies. Bacteria and other microbes have to get through our skin defense...
  11. A

    Force of impact on a human body falling into water

    Homework Statement A 50lg man jumps off a bridge 80m high. He lands in choppy salt water feet first. Each foot has an area of 75cm^2. The goal is to find out a) What is the force sustained by the human body while hitting then decelerating in the water. b) depth of penitration Because...
  12. N

    Medical Internal vs. external human body

    Does a persons attitude, or way of life affect their internal body? I don't mean it as a couch potato will be weak. I mean it as a picky person will they have allergies? Will a germ phobic have ...
  13. E

    Effects of Electromagnetic Fields on Human Body Help

    A week or so ago, my high school physics teacher sent us all summer work - we have to write an article explaining the processes by which electromagnetic fields (particularly low frequency electromagnetic fields) could effect the human body. Since then, I have been wading through the large wealth...
  14. T

    How Does Raising Arms or Leg Amputation Affect the Center of Mass?

    [SOLVED] center of mass in which direction would the center of mass of the body migrate if the arms were raised overhead? what about if the person had a bilateral amputation of his legs?
  15. C

    The frequency of the human body is?

    I don't want to ask this question in a New Age metaphysical type of way so please don't interpret it as such. What frequency does the human body run at? Does this question make sense or is it too broad? I will try to fire off a frew separate examples of what I mean so that the question...
  16. S

    What are the Anucleate Cells in the Human Body?

    Hi, Can someone provide a list of anucleate cells in human body? i know platelets and red blood cells are anucleate. Are there more? Thanks a million.
  17. C

    Why does the human body need iron?

    As far as I know Iron is used in many enzymes as the metal complex. Beyond this are there any biological uses for iron? All uses appreciated, ty.
  18. E

    The human body as a radiator - Air conditioning

    After reading the thread "how many watts does the human body use?" I calculated that my body requires 86 W of energy on average throughout the day. However, I am wondering how much excess energy my body radiates as waste heat (and blackbody radiation) ? Obviously this depends on a lot...
  19. S

    How Much Power Can the Human Body Output?

    Does anyone know how much power can the human body output? Specifically, how much power can each part of the body output? e.g. how much power can an arm output, a leg output, a particular muscle output, etc? Thanks, sphoenixee
  20. C

    How many watts does the human body use

    how many watts does the human body use i guess 500w
  21. C

    Average Atomic mass of the human body?

    I was wondering average atomic mass is of a fully grown male human. What I mean by this is, if we consider the human body to be comprised of mainly Carbon, Hydrogen, Oxygen, Nitrogen and other trace elements like Calcium, Sodium, Phosphorus, etc. Is it possible to determine an estimate about...
  22. K

    How do vaccine work in the human body?

    how does vaccine help the body develop the immunity that it needs?
  23. T

    How Do You Calculate the Moment of Inertia for a 5'10, 165lb Male?

    I am having a lot of trouble trying to find the moment of inertia of myself, a male 5'10", and 165lbs. It seems as if it should be simple but am unsure how to take this one on. Any help would be great thanks.
  24. S

    Can the human body influence electronics?

    I've never been to this forum before but I was googling the hutchison effect and also info about radio waves and the human body and that's how I found this place. I've read a topic dating back to 2004 and made me wonder if the human body can influence electronics like causing interference and...
  25. M

    Human Body Levers: Exploring First and Second Class

    I know that the human body is mostly made of third class levers, making it fit for speed. What would happen if the human body were made of first or second class levers?
  26. S

    Calculate the surface temperature of a human body

    I am unsure about some of my formulae and answers I would be very grateful if someone could clarify these please Q1 The insulating layer on the inner wall of a building is made from a compound layer of laminated board (inner) and styrofoam (outer). The thickness of the board is 0.02 m and...
  27. M

    How would the human body function at reduced sizes?

    I'm a cartoonist and I'm currently working on a story that involves a 6-inch person and a long, outdoor trek. I'd like to introduce as many real-world issues to the equation as possible, and so here I am, intruding upon your forum to pick your mighty brains. :) I'd really be interested in any...
  28. wasteofo2

    How is it that alcohol affects the human body?

    What is it about 2 carbons, 5 hydrogens and a hydroxyl that causes people to become intoxicated when they drink alcohol? Also, why does alcohol have a degenerative effect on the liver, kidney, heart, brain etc.? Thanks, Jacob
  29. P

    Phosphate adn its role in the human body

    Why is phosphate so key in the human body? ----- Life is a problem... SOLVE IT!
  30. F

    How Does the Human Body Use Oxygen and Can We Breathe Alternative Gases?

    why does the human body need oxygen, what does the human body use it for. is it possible to create a alternate gas that the human body can intake Is it possible to alter human genetics to breathe poisons?
  31. Ivan Seeking

    Microsoft assimilates the human body as a conduit for consumer electronics

    http://www.betanews.com/article/1088039192
  32. H

    Force exerted on human body doing various activities?

    Does anyone know of a website or source of where I can find a list of various activities and what force is dealt to the body/head while doing it? Some examples I am looking for include car crash (whiplash), fighter pilots, and football players. I am looking to get as many examples as possible...
  33. G

    Exploring the Sacredness of the Human Body

    I'm curious as to what you all feel about the human body. Is the body sacred? is it a tool? And if you believe either, explain.
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