Cold and Flu Appointment Guide. Burning accompanied by redness around the outer ear and the skin around your ear can be indications of a serious infection that should prompt you to contact your health care provider right away.
You answered: Correct Answer: The average adult human brain has about 100 billion cells. Linked by synapses, each brain cell can connect to tens of thousands of other brain cells. It's still a mystery exactly how these connections work together to create all the marvels of our brains. Next.
While humans have about 100 billion nerve cells in their bodies, other mammals, such as blue whales, boast at least twice that number. The University of Tennessee points out that the elephant's brain is about three times as big as that of a human and contains about three times as many nerves.