If youâre looking to find a dentist you may notice that while most are listed with a âDDSâ, some may be listed as âDMDâ.They both mean the same thingâyour dentist graduated from an accredited dental school.The DDS (Doctor of Dental Surgery) and DMD (Doctor of Medicine in Dentistry or Doctor of Dental Medicine) are the same degrees. Dentists who have a DMD or DDS have the same education.f youâre looking to find a dentist you may notice that while most are listed with a âDDSâ, some may be listed as âDMDâ. They both mean the same thingâyour dentist graduated from an accredited dental school.
This means that the sperm whale actually has quite a small brain in comparison with its body. Largest brain in proportion with body This question is a little harder to answer because of the different measurements. The shrew, a mouse-like creature, has a brain that is 10% of its body size. This makes it the animal with the largest brain to body ratio. However, humans are the leaders when it comes to Encephalization Quotient (EQ), which is a way to measure brain size based on actual and predicted brain size.
Physical Facts About the Brain. The adult human brain weights about 3 pounds and the cerebrum accounts for about 85% of the brain. The brain is composed of 40% gray and 60% white matter. The gray matter is made up of about 100 billion neurons that gather and transmit signals while the white matter is made of dendrites and axons that the neurons use to transmit signals. The brain is composted of about 75% water and is the fattiest organ in the body, consisting of a minimum of 60% fat. Humans have the largest brain to body ratio of any animal, and the blood vessels in the brain, if stretched end-to-end, would be about 100,000 miles long.