lunes, 22 de diciembre de 2014

smell

                                                               the smell
the smell is the most important sense for most organisms.
the nose is the organ of the smell.
the parts of the nose are: olfactory area,olfactory bulb,pituitary gland ,cartilage,nasal bone and the nasal cavity.
the holes we have in the nose are called nostrils.
we have hair in the nose, because when we inhale air,powder and other things,only get in the air and the powder and  the other things stays in the hair. 
the pituitary gland, that also can be called hypophysis have the function to produce specific hormones.
the size of the hypophysis is like a little pea (1 cm).
 
                             the end by Teresa
                              

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