Chapter 35 Flashcards
What is the Lymphatics?
-An accumulation of lymph nodes and channels connecting them. - A filtering system for the blood stream.
What do the lymph nodes do?
Filter fluid and produce lymphocytes to combat infections.
What nodes are located beneath the chin?
Submental Nodes
What do the submental nodes do?
Drain the mandibular incisors, tip of tongue, and midline of lower lip and chin.
What node is a long gland near the angle of the mandible?
Submandibular nodes
What do the submandibular nodes do?
Drain the max. Teeth and sinus, man. Canines, mand. Posteriors, floor of mouth, tongue, cheek, hard palate, and ant. Nasal cavity.
What is Lymphadenopathy?
Enlargement and tenderness of submandibular nodes.
What nodes are located on the lateral surface of internal jugular vein and lay next to SCM muscle about 2 inches below ear?
Upper deep cervical nodes
What does the Upper Deep Cervical nodes drain?
3 molar region
What nodes are located beside SCM about 2 inches above the clavicle?
Lower deep cervical
What does the lower deep cervical nodes drain?
Upper deep as well as occipital nodes.
How does cancer spread?
Through the nodes and into the blood stream. ( 1 degree nodes-2 degree nodes- 3 degree nodes- blood stream)
Dental infections also spread via what?
Fascial spaces or (fascial planes)
What are fascial spaces?
Spaces between muscle and tissue layers.
What is periodontal space infections?
Swelling of gingival or mucosal tissues.
What is buccal space swelling?
Swelling in vestibule
What is buccal parulus?
“Gum Boil” Exacerbation of periapical (PA) infection out onto gingival mucosa.
What is the submental space?
Below chin
What is the sublingual space?
Floor of mouth
What is Ludwig’s angina?
Spread from sublingual to submental space and can continue by gravity towards heart.
What is the lateral Pharyngeal space?
Side of neck next to pharynx.
What is the retropharyngeal space?
Posterior border of pharynx.
What is posterior madiastinum?
Back of chest cavity— heart
Infection of Mandibular Canine
Sublingual space- submental space- lateral Pharyngeal space- retropharyngeal space- posterior mediastinum- heart- DEATH
