The skin is composed of two main layers with a subcutaneous fatty layer underneath. The two main layers are:
These layers may be further subdivided as follows:
| The epidermis has five layers:
a) stratum corneum (superficial layer)
b) stratum lucidum c) stratum granulosum d) stratum spinosum e) stratum basale (germinativum) (deepest layer).
| The dermis has two layers:
a) papillary layer b) reticular layer.
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.