The brain is a soft organ that is inside our head and is protected by the skull. The plural is ‘brains’.

The mind is what the brain can do for example: think, feel things, reason, understand etc. (stative verbs) The plural is ‘minds’.

idioms with the body part ‘brain’

Let’s look at some popular body idioms that contain the body part ‘brain’ or ‘mind’.

I’ve added the meaning and a picture example too.

idiomatic expressions with body parts - brain
brain idioms - all brawn and no brain
brain idioms and expressions - birdbrain
mind idioms in English - blow one's mind
brain idioms list - brainstorm meaning
mind idioms list - cross one's mind
common mind idioms - in two minds
common brain idioms - no brainer
mind idioms lisgt - one-track mind meaning
brain idioms in English - pick one's brain meaning
mind idioms list - put one's mind to it
brain idioms list - rack one’s brain meaning
common brain idioms - scatter brain meaning