. Essentials of biology presented in problems. Biology. THE NERVOUS SYSTEM AND ORGANS OF SENSE 403 , flcai^IL uninjured in any way, we find that tlie frog acts spontaneously. It tries to escape when caught. It feels hungry and seeks food. It is capable of voluntary action. It acts like a normal individual. Functions of the Cerebrum. â In general, the functions of the different parts of the brain in man agree with those functions we have ah'eady ob- ser\'e(l in the frog. The cerebrum has to do with conscious activity; that is, thought. It presides over what we call our thoughts, our will, and o


. Essentials of biology presented in problems. Biology. THE NERVOUS SYSTEM AND ORGANS OF SENSE 403 , flcai^IL uninjured in any way, we find that tlie frog acts spontaneously. It tries to escape when caught. It feels hungry and seeks food. It is capable of voluntary action. It acts like a normal individual. Functions of the Cerebrum. â In general, the functions of the different parts of the brain in man agree with those functions we have ah'eady ob- ser\'e(l in the frog. The cerebrum has to do with conscious activity; that is, thought. It presides over what we call our thoughts, our will, and our sensations. Each part of the area of the outer layer of the cere- brum is given over to some one of the differ- ent functions of speech, hearing, sight, touch, movements of bodily parts. The movement of the smallest part of the body has its definite localized center in the cerebrum. Experiments have been performed on monkeys, and these, together with observations made on persons who had lost the power of move- ment of certain parts of the body, and who, after death, were found to have had diseases localized in certain parts of the cerebrum, have given to us our knowledge on this subject. Reflex Actions ; their Meaning.â TV- â f ji, ii f â 1 If through disease ox for other Diagram of tho path of a. Mniijlo " '" fo nervous reflex aitiuu. rcasons the ccrebrum does not. Regions of the head and action of the different parts of the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunter, George William, 1873-1948. New York, Cincinnati [etc. ] American Book Company


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbiology, bookyear1911