Which Prefix Means Within

question 57

Multiple Choice

Which prefix means within?

• A)intra-
• B)extra-
• C)inter-
• D)retro-

---

Definitions:

Epiblast

A layer of cells in the early embryo from which all the various tissues and organs of the body will eventually develop.

Neural Plate

An early embryonic structure that gives rise to the central nervous system, including the brain and spinal cord, through the process of neurulation.

Notochord

A flexible rod made of a material similar to cartilage that provides support in the embryonic stages of all chordates.

Neural Crest

A population of cells that arise from the embryonic ectoderm and migrate to form various structures, including peripheral nerves, melanocytes, and facial cartilage.