Broken Vessels

Megan pinched her thumb on something. I don't remember what she pinched it on, but the result was a broken blood vessel.

Megan: Amanda, look at my thumb!

Amanda: Yeah, so?

Megan: Mom said it's a broken brain vessel.

Amanda: A broken brain vessel? No it's not. It's a bruise.

Megan: No, it's a broken brain vessel.

Me: BLOOD vessel. It's a broken blood vessel.

Megan: Oh. Blood vessel. Right.

Tomato, tomahto. Brain vessel, blood vessel ...