Lymphatic Drainage Of Head & Neck - كلية الطب

2y ago
113 Views
6 Downloads
1.38 MB
20 Pages
Last View : 23d ago
Last Download : 2m ago
Upload by : Gannon Casey
Transcription

The vertical chain consists of superior and inferior groups ofnodes related to the carotid sheath.All lymph vessels of the head and neck drain into the deepcervical nodes, either directly from the tissues or indirectly vianodes in outlying groups.Lymph is returned to the systemic venous circulation via eitherthe right lymphatic duct or the thoracic duct.

NodeLocationAfferentEfferentSuperficial Lymph Nodes of the HeadOccipital (2-4)Superior nuchal linebetweensternocleidomastoidand trapeziusOccipital part of scalpSuperficialcervical lymphnodesMastoid (1-3)Superficial tosternocleidomastoidinsertionPosterior parietal(scalp)Skin of ear,External acousticmeatusSuperior deepcervical nodes

1. Parotid About parotid gland(up to 10 and under parotidor more) fasciaDeep to parotidgland2.Preauricular(2-3)Anterior to earover parotidfascia

NodeFacialA. Superficial(up to 12)MaxillaryBuccalMandibularFacialB. DeepLocationAfferentEfferentDistributed alongcourse of facialartery and veinSkin and mucousmembranes ofeyelids, nose, cheekSubmandibularnodesDistributed alongcourse of maxillaryartery lateral tolateral pterygoidmuscleTemporal andinfratemporal fossaNasal pharynxSuperior deepcervical lymphnodes

Lymph drainage ofexternal noseLymph drainage of externalnose is primarily to thesubmandibular group(Although lymph from the rootof the nose drains tosuperficial parotid nodes).

Lymph vessels from the anterior region of the nasal cavity passsuperficially to join those draining the external nasal skin, andend in the Submandibular nodes.The rest of the nasal cavity, paranasal sinuses, nasopharynxand pharyngeal end of the pharyngotympanic tube, all drain tothe upper deep cervical nodes either directly or through theRetropharyngeal nodes.The posterior nasal floor probably drains to the Parotid nodes.

NodeLocationAfferentEfferentCervical Lymph NodesSuperficialAnterior jugular veinbetween superficialcervical fascia andinfrahyoid fasciaSkin, muscles, andviscera of infrahyoidregion of neckDeepBetween viscera ofAdjoining parts ofneck and investingtrachea, larynx,layer of deep cervical thyroid glandfasciaSuperior deepcervical lymph nodesSuperior deepcervical lymph nodes

Superficialcervical(1-2)Along externaljugular veinsuperficial tosternocleidomastoid muscle

SuperiordeepcervicalSurrounding internaljugular vein deep tosternocleidomastoid andsuperior to omohyoidmuscle

Submental(2-3)SubmentaltriangleDrain the:Medial part of lower lipLower incisor teeth andgingivaTip of tongueCheeksEfferent:Submandibular lymphnode jugulo-omohyoidlymph node and superiordeep cervical lymph nodes

The lymphatic drainage of the tongue can be dividedinto three main regions, marginal, central and dorsal.The anterior region of the tongue drains into marginaland central vessels,the posterior part of the tongue behind thecircumvallate papillae drains into the dorsal lymphvessels.The more central regions drain bilaterally into submandibular and deep cervical nodes.

DorsalCentralMarginal

Submandibular(3-6)Submandibulartriangleadjacent tosubmandibulargland

NodeLocationAfferentEfferentJugulo-omohyoid Above junction ofinternal jugular veinand omohyoidmusclePosterior 1/3 oftongueSubmandibularnodesSubmental nodesInferior deepcervical lymphnodesInferior deepcervicalAlong internaljugular vein belowomohyoid muscledeep to thesternocleidomastoidmuscleTransverse cervicalnodesAnterior cervicalnodesSuperior deepcervical nodesJugular rior nasal cavityParanasal sinusesHard and soft palateNasopharynx,oropharynxAnditory tubeSuperior deepcervical nodesTextbook of Head and Neck Anatomy (Hiatt - Gartner, 4th Ed. 2010)

JugulodigastricJunction ofinternal jugularvein andposteriordigastric muscle

The lymphatic drainage of the tongue can be divided into three main regions, marginal, central and dorsal. The anterior region of the tongue drains into marginal and central vessels, the posterior part of the tongue behind the cir

Related Documents:

Drainage from the head and neck: All the lymphatic drainage of the head (the ring) will go into the upper deep cervical lymph nodes The upper deep cervical drains into the lower deep cervical. Superficial cervical drain directly into the lower deep cervical. Then two lymphatic trunks will be formed, right and left jugular lymphatic trunks.

The function of the lymphatic system - Fights infection by producing specialised cells - Transports digested fats - Removes waste, toxins and excess tissue fluid from tissues and cells The structure of the lymphatic system - Composition of lymphatic fluid (lymphocytes), lymphatic capillaries, lymphatic vessels, lymphatic nodes, lymphatic tissue .

Figure 20.1a Distribution and special features of lymphatic capillaries. Venous system Arterial system Heart Lymphatic system: Lymphatic duct Lymphatic trunk Lymph node Collecting lymphatic vessels, with valves Tissue fluid Lymphatic capillary Blood capillaries Tissue cell Structural relationship between a ca

Lymphatic System The lymphatic system and the cardiovascular system are closely related structures that are joined by a capillary system. The lymphatic vessels are present wherever there are blood vessels and transport excess fluid to the end vessels without the assistance of any "pumping" action. The lymphatic system is composed of lymph .

Lymphatic System Overview Lymphatic Vessels and Flow of Lymph Lymphoid Cells, Tissues, and Organs (7th edition) Overview of the Lymphatic System Major Components of the Lymphatic System (fig. 20.1) LYMPH - an extracellular fluid (ECF) similar to plasma; ECF is found in several places in the body: body tissues (ECF interstitial .

Functions of The Lymphatic System Lymphatic capillaries reabsorb excessive tissue fluid and transport the fluid through the lymphatic pathway, and ultimately dispose it into the blood. Lymphatic capillaries called Lacteals absorb certain fatty acids in the small intestine. Lymphatic system consists of tissues and organs that produce,

1) Radical neck dissection (RND) 2) Modified radical neck dissection (MRND) 3) Selective neck dissection (SND) Supra-omohyoid type Lateral type Posterolateral type Anterior compartment type 4) Extended radical neck dissection Classification of Neck Dissections Medina classification - Comprehensive neck dissection Radical neck dissection

Lymphatic capillaries called Lacteals absorb certain fatty acids in the small intestine. Lymphatic system consists of tissues and organs that produce, mature , and store lymphocytes and macrophages, for body defense purposes . The lymphatic pathway is an open circuit where lymphatic