The chemicals that allow the transmission of signals between neurons are called

Good health in old age can primarily be attributed to

A) the decline in chronic disease. B) the quality of health care for the elderly. C) the lack of stereotypical views of the aged. D) good health in adolescence and adult life.

Malcolm is studying alone in his room late at night when he hears a loud noise downstairs. His heartbeat increases significantly and his breathing becomes shallow. He wonders if a burglar has entered the house and decides to investigate

When he gets downstairs he discovers his cat has knocked over a plant stand. His body begins to relax and return to normal. Which part of his nervous system is responsible for returning Malcolm to a normal state? A) spinal cord B) somatic nervous system C) sympathetic nervous system D) parasympathetic nervous system