Page 73 - Edited - Webster HEAD AND NECK - part 2-Merge PDF
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265                                       HN 265
                        THE NASOPHARYNGEAL (ADENOIDAL) TONSIL & "WALDEYER'S

                                                          RING                                            HN 265
                                                                          ("Adenoid" - "resembling
                                                              B
                 (A) SCHEMATIC TMEDIAN                                                    a gland")
                    SECTION

                                                                               BODY OF SPHENOID
            THE NASOPHARYNGEAL                                                      BARI-OCCIPITAL BONE
            TONSIL is a true tousil with
            a structure almost identical                                             NASOPHARYNGEAL TONSIL IS
            to that of the PALATINE                                                          UNPAIRED.
            TONSIL, except its crypts                                               TUBAL TONSIL
            are less marked. ( TEXT).
                                                                                    OPENING OF AUDITORY
            If is covered with                                                      (PHARYNGO-TYMPANIC)
            RESPIRATORY                                                                              TUBE.
            EPITHELIUM (the
            epithelium of The naso-
            pharynx). Its GROWTH
            CHANGES follow dovely                                                      PALATINE TONSIL
            Those of the palatine tousils                                             "LINGUAL TONSIL"
            (q.v.). A pathologically
            enbaged nasopharyngeal                                                    The lymphoid tissue
            tonsil is commonly referred                                               illustrated is ONE (the
            to as an ADENOID. A                                                       RIGHT) HALF OF
            grosely enlarged                                                          "WALDEYER'S RING" -
            nasopharynged tonsil                                                      "gaaedie" "the entrances to
            restricts the offering between                                            The pharynx from outside
            the NASO- & ORO-                                                          Notice that the "ring is
            PHARYNX & Caused
            HYPONASAL SPEECH (                         B                  K.E.W.      discontinuons - and not
            The TUBAL TONSILS are                                                     circular (B, below)
            so called because they
            surround The
            PHARYNGEAL
            OPENINGS of The                                           NASOPHARYNGEAL TONSIL. NOTE
            PHARYNGO-TYMPANIC                                                                 GROOVES
            (AUDITORY) TUBES. Like                                             TUBAL
            the lingual tonsil" They are                                       TONSIL
            not true foutils, but

                                                    NASO-                     PHARYNGO-TYMPANIC
                                                     PHARYNX                  (AUDITORY) TUBE
           Only            PALATE                                             (CARTILAGINOUS PART)
           lymphoid tissue
           embedded in the mucosa,
           without a capsule.                                          INTRATONSILLAR CLEFT
           Enlargement of the tuod                                      PALATINE
           tonsil can cause conduction                                  TONSIL
           deafness (q.v.) Adenoidal
           tonsillectomy involves
           telling out The naso-                                           “LINGUAL
           phatynged tonsil with its            TONGUE                     TONSIL”

           HEMICAPSULE. LYMPH
           from The nasopharygeal                CUT
           tonsile drains to deep                                        (B) SCHEMATIC VIEW OF POSTERIOR
           cervical notes at the                              K.E.W.  ORO- & NASO-PHARYNGEAL WALLS
                                                                     AFTER SECTIONG IN PLANE (B) –(B)
           anterior border of                                        (ature) - VIEWED FROM FRONT
           sternocleidomastoid m. near
           the wastid process (q.v).

                                                  K.E.W.
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