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.
The brain is made up of over 100 billion nerve cells with each brain cell connected to around 10,000 other cells, which equals around 1000 trillion connections in your brain. Your brain is actually very soft, jelly-like, and not grey but a deep red in color. The brain controls both involuntary, or lower, actions, such as heart rate, respiration, and digestion. Complex, or higher, mental activity, such as thought, reason, and abstraction, is consciously controlled.