MICROANATOMY

BLOOD CARDIOVASCULAR SYSTEM LYMPHOID ORGANS

LYMPH NODES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
are small masses of lymphoid tissue that ring the pharnyx, where they are found in the mucosa
A
thymus
B
tonsils
C
tcells
D
thymus
Explanation: 

Detailed explanation-1: -The palatine (or faucial) tonsils, commonly referred to as tonsils, are bundles of lymphatic tissue located in the lateral oropharynx. They sit in the isthmus of the fauces, bordered anteriorly by the palatoglossal arch and posteriorly by the palatopharyngeal arch .

Detailed explanation-2: -Tonsils are small masses of tissue at the back of the mouth and nose and at the top of the throat. Tonsils have many lymphocytes.

Detailed explanation-3: -Waldeyer’s ring consists of four tonsillar structures (namely, the pharyngeal, tubal, palatine and lingual tonsils) as well as small collections of lymphatic tissue disbursed throughout the mucosal lining of the pharynx (mucosa-associated lymphoid tissue, MALT).

Detailed explanation-4: -Tonsils are large non-encapsulated (or partially encapsulated) masses of lymphoid tissue, that lie in the walls of the pharynx and nasopharynx and at the base of the tongue. The luminal surface of the tonsils are covered with a stratified squamous epithelium (in common with the oral epithelia).

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