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How the lungs work
Cut the bottom off a large bottle. Fit a cork to the neck with a Y tube in it. On every of the lower limbs of the Y tie a rubber balloon or a number of small bladder.
Tie a sheet of brown paper or sheet rubber round the bottom of the jar, with a piece of String knotted by a hole and sealed with wax. Pulling this string lowers the diaphragm and air enters the neck of the Y piece causing the balloons to dilate.
Pressing the diaphragm upwards has the opposite effect.
Forebrain: The largest part of the brain that you see in Fig. is the cerebrum. It consists of two halves or hemispheres joined together by a band of nerve fibres. Intere
Explain Extrasystole and Compensatory Pause During the relaxation period, cardiac muscle is in the relative refractory period i.e. sleeping but only just. If a sufficiently st
Explain the Nuclei or Ganglia Deep within the cerebral hemispheres are groups of nerve cells called nuclei or ganglia which act as relay stations, where impulses are passed fro
what are alveoli?
how do i draw mario at two different resolutions: 32 by 32 pixels, and 8 by 8 pixels.
Political role of communication Communication has an Important role in political and social awakening. During our freedomstruggle, the leaders communicated with the people di
Microwaves : The microwave region of the electromagnetic spectrum is increasingly used for a variety of purposes for example, for rapid heating. The particular microwave ovens hav
so say if a car was going at 50km in a hour I would not no how to work it out help me:(
Objectives After you do this exercise, you should be able to 1. Prepare a list of unserviceable and obsolete items to be disposed of, after 2. Indicating the reserve pric
1.) Referring directly to the locations of igneous activity identified on the below diagram (figure 5), and restricting yourself to any of the following terms and rocks (sedimentar
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