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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.
Explain Nervous Phase of Pancreatic Secretion Nervous phase: When stomach secretes gastric juice in cephalic phase and gastric phase, nerve impulses are simultaneously transmit
GENERAL FEATURES OF FIRST AID PROCEDURE : The order of priorities in administering first aid is decided by the principal ,objective - to save life. Equally important, you must not
Adolescence: Mind and Body, you have already studied that certain hormones are essential for proper physical development of an individual. Around the age of 12, starts a pe
broad area of scientific activity
How soap helps water in cleaning Prepare two greasy cloths by smearing kitchen fat or vaseline on cloths. Wash one sample in warm water without soap. Wash the other sample in w
types of neuron according to function
Enzyme immobilizatio:- The attachment of an enzyme to a solid matrix so that it cannot escape but can still act on its substrate. .
Explain Abductor Muscles Abductor muscle is a muscle that serves to draw a part out, or from the median line (as the abductor oculi, which draws the eye outward). Abductor m
economic importance
what is diffusion.
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