brain

01. He suffered some [brain] damage as a result of hitting his head on the ice when he fell while skating.

02. She's a total [brain] in chemistry.

03. You really have to use your [brain] if you want to solve this puzzle.

04. Frank is the head of the team that is trying to come up with a new marketing strategy, but the real [brains] behind the project is Sylvia.

05. Hilary is quite pretty, and she's blonde, so everyone treats her like some [brainless] chick.

06. He was hit over the head with a metal bar, and now his [brain] is swollen.

07. Boxers often suffer a certain degree of [brain] damage from getting repeatedly punched in the head.

08. The human [brain] only weighs about 1500 grams.

09. The eye receives visual images, which are then transmitted to the [brain] to be interpreted.

10. A decrease in blood flow to the [brain] usually results in a loss of consciousness.

11. By equating [brain] size with intelligence, researchers seem to be implying that whales should have the capacity for a well-developed intelligence.

12. Aristotle once observed that there is a foolish corner in the [brain] of even the wisest man.

13. Robert Frost once joked that the [brain] is a wonderful organ. It starts working the moment you get up in the morning, and does not stop until you get into the office.

14. There is an English proverb which observes that a mob has many heads, but no [brains].

15. An ostrich's eye is bigger than its [brain].

16. On average, a woman's [brain] makes up 2.5 percent of her body weight, whereas a man's [brain] only contributes 2 percent of his body weight.