Page 71 - Edited - Webster HEAD AND NECK - part 2-Merge PDF

HN263 LONGITUDINAL MUSCLES OF THE PHARYNX, SOFT PALATE
4 TONGUE (1)
HN263
(A)
These muscles are ESSENTIAL for The
mechanism of SWALLOWING. They are all
innervated by either The XTH CRANIAL
(VAGUS) NERVE, or The IXTH CRANIAL
(GLOSSOPHARYNGEAL) NERVE although
STYLOHYOID m. is an exception. I do not
regard it as essential to remeber the verse
supplies of individual muscles ()

(B) SCHEMATIC VIEW OF ANTERIOR OF
INTERIOR PHARYNX (al at (A)

FOR: SOFT PALATE, SEE
TONGUE, SEE

STYLOID PROCESS

PHARYNGO. CARTILAGINOUS PART OF
BASILAR NASAL CAVITY PHARYNGO-TYMPANIC
FASCIA (AUDITORY) TUBE
NB. "SALPINGO"- STYLOPHARYGEUS m

pertaining to the (IX)
"SALPINX"-Greek
"trumpet; tube". POSITION OF SOFTPALATE POSITION OF SUPERIOR
CONSTRICTOR m.
(x)
PALATINE TONSIL
PALATO ORAL SALPINGOPHARYNGEUS
GLOSSUS m. CAVITY m. (attached to auditory
(XIC). TUBE) (XIC)

MIDDLE PALATO-PHARYNGEUS
CONSTRICTOR TONGUE m. (XIc)
m. E POSITION OF MIDDLE
G P CONSTRICTОR m.
I
(c) THYROHYOID HYOID O L POSITION OF INFERIOR
BONE
CONSTRICTOR m.
MEMBRANE INFERIOR TI T S
CONSTRICTOR ALL THREE–PHAKYGEUS
m. THYROID MUSCLES ARE ATTACHED TO
STYLOID CARTILAGE THE POSTERIOR EDGE OF THE
PROCESS THYROID CARTILAGE (AS
SUP.CONSTRICT WELL AS MINGLING WITH

STYLOGLOSSUS m.
M (IX) () STYLOHYOID CRICOID CONSTRICTOR): THEY ARE

CARTIL
AGLE TO LIFT THE CARTILAGE
M. (VII) (⸫ LARYNX) UPWARDS.
K.E.W.
HYOID
IN (B) & (C) NOTICE that
THYRO- 1. Of The Three longitudinal pharyngeal muscles (in B) two
HYOI arise inside the pharynx: any STYLO pharynges must find a
MEMORINE
way through the wall.
LARYNX 2. In (C) STYLOlyam. can romain outside the superior
constrictorm. It can raise the HYOID bone & ⸫ The LARYNX.
(cf. Longitudinal muscles in B).
3. In (C) STYloglossus m. ariser outside the pharynx
but must find a way in to reach the TONGUE ( ). Together with PALATO –
glossus (in B) it can raise the pharyngeal tongue towards the palate

K.E.W. CONT'D