i oa ICN aa a li 
LYMPHATIC VESSELS AND GLANDS OF HEAD AND NECK. 865 
portion of the temporal bone. They receive afferent vessels from the posterior 
part of the parietal region of the scalp, and from the inner surface of the pinna ; 
their efferents join the : superficial cervical glands. 
The zygomatic or internal maxillary glands (ymphoglandule faciales profunde) 
are very variable both in number and size; they le with the internal maxillary 
artery on the posterior part of the buccinator muscle, and on the anterior part of 
the wall of the pharynx. Their afferent vessels are derived from the orbit, the 
temporal fossa, the zygomatic fossa, the palate, the nose, and the cerebral meninges. 
Their efferent vessels open into the upper deep cervical elands. 
The parotid lymphatic glands (ymphoglandulee eeulared anteriores), which 
are embedded in the substance of the parotid gland, some supe rficially and 
others deeply. The superficial receive afferents from the frontal and the temporal 
regions of the scalp, from the eyebrow, the upper and lower eyelids, the upper part of 
the cheek, the root of the nose, and the outer surface of the pinna. Their efferents pass 
to the superficial and the upper deep cervical glands. The deep parotid lymphatic 
glands (lympho-glandule parotideze) lie along the course of the upper part of the 
external carotid artery. They receive afferents from the external meatus, the soft 
palate, the posterior part of the nose, and the deeper portions of the cheek, Their 
efferents open into the upper deep cervical glands. 
The buccal lymphatic glands are few in number and small in size: they le 
on the outer surface of the anterior part of the buccinator muscle. Their afferents 
are derived from the cheek and the side of the face, and their efferents join the 
deep parotid and submaxillary glands. 
The lingual glands (ly mpho; landulee linguales) le between the genio-hyo-glossi 
muscles and, on the outer surfaces of the hyo-glossus and genio-hyo-glossus ‘muscles, 
under cover of the mylo-hyoid; they receive afferent vessels from the floor of the 
mouth and the anterior part of the tongue. Their efferents terminate in the upper 
deep cervical glands. 
The lymphatic glands of the neck include :— 
The superficial cervical lymphatic glands (lymphoglandule cervicales super- 
ficiales). These he on or are embedded in the deep fascia along the course of the 
external jugular vein, superficial to the sterno-mastoid and along its posterior 
border. They receive afferent vessels from the superficial tissues of the neck, the 
occipital, the mastoid, the superficial parotid, and the submaxillary ly mphatic 
glands. Their efferent vessels terminate in the upper and the lower deep cervical 
elands. 
The submaxillary lymphatic glands (lymphoglandule submaxillares) are in the 
submaxillary triangle and in relation with the superficial and deep surfaces of 
the submaxillary gland. Those which are more superficially situated receive 
afferent vessels from the superficial part of the nose and from the front and lower 
part of the face, including the upper lip and the outer part of the lower lip, whilst 
the afferents of the more ‘deeply situated glands are derived from the floor of the 
mouth, the anterior part of the tongue, and from the sublingual and submaxillary 
salivary ¢ glands. The efferent vessels open partly into the superficial and partly 
into the upper deep cervical glands. 
The supra-hyoid glands, usually two or three in number, he beneath the chin on 
the surface of the mylo-hyoid muscle and between the anterior bellies of the digastric 
muscles. They receive afferent vessels from the lower lip and the chin, and. their 
efferents terminate in the superficial, and in the upper deep cervical elands. 
The post-pharyngeal glands lie behind the upper part of the pharynx in front 
of the upper two cervical vertebree. They receive afferents from the pharynx, 
the prevertebral muscles and fascia, and the posterior part of the nose. Their 
efferents open into the upper deep cervical elands. 
The pre-laryngeal glands are very variable, but occasionally one or two small 
glands are found in front of the lower part of the lar ynx, between the erico- thyroid 
muscles. They receive afferent vessels from the lower part of the larynx, the upper 
part of the trachea, and the thyroid body. Their efferents terminate in the upper 
deep cervical elands. 
The pre-tracheal glands are usually of small size. They he on the anterior 
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