Iliocostalis lumborum

Iliac crest

Lower six ribs

Extends lumbar region of vertebral column

Lumbar spinal nerves

Iliocostalis thoracis

Lower six ribs

Upper six ribs

Holds spine erect

Thoracic spinal nerves

Iliocostalis cervicis

Upper six ribs

Fourth through sixth

Extends cervical

Cervical spinal

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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