3. Mucosal immune system.

Question 1

Lymphatics

Answer 1

Tissue fluids passes through lymph nodes and back into circulation

Question 2

Main lymph nodes of head and neck

Answer 2

• Superficial cervical
• Submental
• Deep cervical
• Jugolodiagastric

Question 3

• Superficial cervical Lymph nodes

Answer 3

• Along external jugular veins
• Superficial to SCM muscle
• Drainage from skin of scalp, face, neck, ear

Question 4

Submental lymph nodes

Answer 4

• Drainage from skin of the anterior face, anterior nasal cavity, anterior two-thirds of
  the tongue, and the majority of dentition, gingiva, hard palate
• Drain into submandibular nodes

Question 5

Deep cervical lymph nodes

Answer 5

Along carotid sheath around jugular vein

Question 6

Jugulodiagastric lymph nodes

Answer 6

Drains oropharynx, tongue base, soft palate, tonsills

Question 7

Waldeyers ring

Answer 7

Consists of palatine, lingual, adenoid(pharyngeal) tonsils