Brittle Star Starfish Anatomy

Ophiuroids range from the poles to the tropics and from intertidal to abyssal plains as well as in deep sea trenches. The deepest recordings were taken from the Bourgainville Trench at 26,270 ft (8,006 m).

Brittle Star Anatomy

bursal slit

Brittle and basket star anatomy. (Illustration by Patricia Ferrer)

bursal slit oral arm shield ventral ossicle vertebral ossicle radial canal perihemal canal

•radial nerve "tube foot

Brittle and basket star anatomy. (Illustration by Patricia Ferrer)

Essentials of Human Physiology

Essentials of Human Physiology

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.

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