Abstract:
Lymph from head and neck regions is collected,filtered and drained from towards through the afferent and efferent vessels of main lymphcenters: thebuccal, facial, submandibular, auricular, superficial cervical and deep cervical.The lymph centers are characteristically organized in lymph nodes groups in a different way,depending from a series of factors, depending on the head and neck length and the conformation of the salivary glands. In guinea pigs the lymphcenters are included in a great amount of adiposetissue. In the center of this tissue we reveal the lymphcenterwhich are gray colored. The lymph centers in the guinea pig are spread in more numerous groups.The buccal lymph center consist of a single lymph node and it is close of the superior molar glands which are characteristic in rodents. The parotid lymphcenter consist of a three lymph nodes. The anterior auricular lymph center consists of two lymphnodes groups: round and kidney shaped. The posterior auricular lymph center is covered by parotidoauricular muscle. The mandibular lymph center is kidney shaped in aspect and is covered by the platysma muscle.The superficial cervical lymphcenter is characterized by ventral superficial cervical lymph nodes situated between the caudal border of the parotid gland and the cleidoocipital muscle. The deep cervical lymphcenter (cranial, middle and caudal) is situated at the caudal pole of the submandibulary gland or on the lateral side of the sternothyroid muscle.
