-The Figure Illustrates Bones, Fontanels, and Sutures on the Fetal

question 95

Multiple Choice

-The figure illustrates bones, fontanels, and sutures on the fetal skull. What does "E" represent?

• A) Anterior fontanel
• B) Posterior fontanel
• C) Parietal bone
• D) Sagittal suture
• E) Occipital bone

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Definitions:

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of skin, central and peripheral nervous systems, eyes, inner ear, and many connective tissues.

Endoderm

In early embryonic development, the most internal cell or tissue layer that evolves into the lining of the digestive and respiratory systems.

Metencephalon

Second most posterior division of the embryonic brain; becomes the pons and cerebellum in the adult.

Cerebellum

A major structure of the hindbrain that controls fine motor skills, balance, and coordination.