A sense of whirling, dizziness, and loss of balance is called:

The term "primary care physicians" refers to ____. 

A. physicians who specialize in the diagnosis and treatment of diseases related to the kidneys B. a group of physicians who share all aspects of a patient's care C. physicians who study the changes a disease produces in the body D. physicians who oversee patients' long-term healthcare E. physicians who specialize in emergency care

The brain material between the sulci is called the 

A. cerebrum. B. corpus callosum. C. sulcus. D. gyrus.