Noun. 1. septum - (anatomy) a dividing partition between two tissues or cavities. partition - (anatomy) a structure that separates areas in an organism. nasal septum-a partition of bone and cartilage between the nasal cavities. anatomy, general anatomy-the branch of morphology that deals with the structure of animals.
How long is the spinal cord and how much does it weigh? The average spinal cord is 45 cm long in men and 43 cm long in women. The spinal cord weighs approx. 35 grams. How much does the brain weigh? The human brain weighs on average three pounds, or 1.5 kg. What size is an adult humans brain? The human brain is about the size of a cantaloupe. Average brain width = 140 mm; Average brain length = 167 mm; Average brain height = 93 mm; How much oxygen does the brain need to stay conscious?
The Size of the Brain. In terms of weight, the average adult human brain weighs in at 1300 to 1400 grams or around 3 pounds. In terms of length, the average brain is around 15 centimeters long. For comparison, a newborn human baby's brain weighs approximately 350 to 400 grams or three-quarters of a pound. Men tend to have bigger brains than women. After taking overall body weight into account, men's brains tend to be approximately 100 grams larger than women's.