Genki 7-2 Body Part Expressions

In English, we would feel comfortable saying something like:
トムさんのかみはながいです。
Tom's hair is long.

トムさんはかみがながいです。
Tom has long hair. (=As for Tom, he has long hair)

This doesn't just apply to Discussion of the length of one's hair, but two descriptions of a persons physical attributes in general. See the parts of the body section in the vocabulary of this lesson for the name of body parts.

Aさんは [body part]が [description]

おおきい
ちいさい
かわいい
せが
あたまがいい