Colors in this figure distinguish the lobes of the cerebral hemispheres. (a) Lateral view of the right hemisphere. (b) Hemispheres viewed from above. (c) Lateral view of the right hemisphere with the insula exposed.

Just beneath the cerebral cortex is a mass of white matter that makes up the bulk of the cerebrum. This mass contains bundles of myelinated nerve fibers that connect neuron cell bodies of the cortex with other parts of the nervous system. Some of these fibers pass from one cerebral hemisphere to the other by way of the corpus callo-sum, and others carry sensory or motor impulses from the cortex to nerve centers in the brain or spinal cord.

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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