a. left ventricle- aorta. 27. What is the functional unit of the nervous system? Brain b. neurons c. muscles d. bones 28. What controls and coordinates the activities of a whole nervous system? Central nervous system b. Sympathetic nervous system C. Nervous system d. Brain 29. Which is NOT a function of the peripheral nervous system? a. Collects information from the sense organ b. Transmits information to the central nervous system C. Delivers decisions to the body part which will perform the action d. delivers oxygen to the different parts of the body. ​