
Facts about the human brain🧠 ➡️The human brain is the largest brain of all vertebrates relative to body size. ➡️It weighs about 3.3 lbs. (1.5 kilograms). ➡️The average male has a brain volume of 1,274 cubic centimeters (cm3). ➡️The average female brain has a volume of 1,131 cm3. ➡️The brain makes up about 2 percent of a human's body weight. ➡️The cerebrum makes up 85 percent of the brain's weight. ➡️It contains about 86 billion nerve cells (neurons) — the "gray matter." ➡️It contains billions of nerve fibers (axons and dendrites) — the "white matter." ➡️These neurons are connected by trillions of connections, or synapses. ♥️