This document defines a number of medical prefixes that begin with "intra-", meaning within. It provides brief definitions for prefixes such as intracellular, intradermal, intragalactic, intramural, intranasal, intraocular, intrapersonal, intrapsychic, and intravenous, describing locations or areas that are within other structures of the body, mind, educational institutions, or other defined areas.

1. within, inside
Intra-Intra-

2. intracellular
existing within the cells

3. intradermal
within
the layers
of the

4. intragalactic
Within
a
galaxy

5. intramural
involving
students
from
within the
same school

6. intranasal
within
the nose

7. intraocular
within
the eyes

8. intrapersonal
existing or
occurring
within
your own

9. intrapsychic
within
the
mind

10. intrastate
within
the state

11. intravenous
within
the
veins