Laboratory 23.
Anatomy of the Superficial Face Step 5.
The Transverse Facial Artery and Vein
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Superior and parallel to the parotid duct, identify the transverse facial artery and vein. They are sometimes small and difficult to identify or may be absent in some individuals.
Links and References:
Netter: 20;21
Rohen/Yokochi: 58;60;61