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FIG 3. Relationship between the deep cervical artery and the C7 and C8 nerve roots.
A, Position of the probe to demonstrate the deep cervical artery.
B, Color Doppler sonogram (90° left rotated) in a 26-year-old female volunteer shows the deep cervical artery (arrow) separating the eighth cervical nerve (4) from the seventh (3).
C, Sagittal gross anatomic section shows the relationship between the deep cervical artery (arrow) and the C7 (3) and C8 (4) nerves roots.
In B and/or C, 1 indicates C5 nerve; 2, C6 nerve; 5, first rib; S, skin.
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