____________________ and Scrapes Occur When Several Layers of Skin Are

question 35

Short Answer

____________________ and scrapes occur when several layers of skin are torn loose or totally removed.

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Definitions:

Mesoderm

The middle layer of an embryo in early development, which gives rise to muscles, bones, and the circulatory system.

Skeletal System

The organ system that provides support, protection, and movement to the body through bones and connective tissues.

Extraembryonic Membrane

Membranes, such as the amnion and placenta, that are not part of the embryo but are essential for its development and survival.

Yolk Sac

An extra-embryonic membrane that provides nutrition to the developing embryo in early development.