Veterinary Drug Handbook (VDH) is the reference veterinarians turn to when they want an independent source of information on the drugs that are used in veterinary medicine today.

Lacrimal system

Consists of 2 glands that produce the aqueous tear film component, one in the dorsolateral orbit and one on the bulbar surface of the nictitans. Tears flow through the nasolacrimal duct to the nose

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