Figure 313

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FIGURE 3.14. The hip joint receives innervation from branches of L2 to S1 of the lumbosacral plexus, but predominantly from the L3 nerve root.

by not stimulating pain at the beginning of the examination (Figure 3.13).

Hilton's law states that "the same trunks of nerves whose branches supply the groups of muscles moving a joint furnish also a distribution of nerves to the skin over the insertion of the same muscles, and the interior of the joint receives its nerves from the same

FIGURE 3.15. The L3 dermatome crosses the anterior thigh and extends distally along the medial thigh to the level of the knee.
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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