Long a hallmark of this book, extensive use of ﬂ ow diagrams is
continued in this edition. They have been updated to assist in learning.
Key to Flow Diagrams
The beginning boxes of the diagrams are color coded green.
Other boxes are consistently color coded throughout the book.
Structures are always shown in three-dimensional form.
Color coding is effectively used to promote
learning. For example, there are speciﬁ c
colors for extracellular ﬂ
uid, the intracellular
uid, muscle ﬁ laments, and transporter
Guided Tour Through a Chapter
or processes combine
microscopic views to
help students see the