. Elementary biology; an introduction to the science of life . Fig. 260. Localization of functions in the cerebrum By studying human beings and other animals in which the brain had been injured, and by making experiments, it has been ascertained that certain regions of the brain cortex are related to receiving sensations from specific regions of the body, while other regions initiate movements of specific muscles. Most of the sensory and motor nerves pass through the spinal cord, SC. The thinking is carried on by the so-called association areas, A-i and .-1-3. The frontal association area has
. Elementary biology; an introduction to the science of life . Fig. 260. Localization of functions in the cerebrum By studying human beings and other animals in which the brain had been injured, and by making experiments, it has been ascertained that certain regions of the brain cortex are related to receiving sensations from specific regions of the body, while other regions initiate movements of specific muscles. Most of the sensory and motor nerves pass through the spinal cord, SC. The thinking is carried on by the so-called association areas, A-i and .-1-3. The frontal association area has to do with abstract thinking, self- control, concentration, and making decisions. The hind association area has to do with knowing and understanding concrete facts and relations will fight with a stick used as a club. But probably no gorilla or monkey ever carried a club or a stone about with him for use in possible emergencies, and that is something that man has done. Even among the earliest remains of human activity there are indications that man chipped stones to fit his hand, to be used as weapons or perhaps for breaking shellfish (Fig. 261).
Size: 2292px × 2181px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishe, booksubjectbiology
