Page 68 - Edited - Webster HEAD AND NECK - part 2-Merge PDF

HN262 SUBDIVISIONS OF THE PHARYNX (1)

HN262 PART 1

A
MEDIAL PTERYGOID PLATE
PHARYNGO-BASILAR The PHARYNX IS DIVIDED INTO
NASA FASCIA. THREE ZONES, EACH
CAVITY/ CORRESPONDING TO THE CAVITY
MAXILLA A WHICH OPENS INTO ITS ANTERIOR

SUPERIOR WALL. THIS IS BEST ILLUSTRATED
ORAL CAVITY CONST B
R
IN A MEDIAN (SAGITTAL) SECTION,
MANDIBLE AS SHOWN BELOW.
MIDDLE
CONST C
HYOID

THYROID INF
CARTILAGE CONST D NOTICE 1. The NASO-PHARYNX is

CRICOID E sometimes referred to by ENT. Surgeons
CARTILAGE as the "POST-NASAL SPACE".

TRACHE
2. The HYPOPHARYNX is sometimes called
K.E.W. OESOPHAGUS the "LARYNGO-PHARYNX".
3. Although part of the LARYNX, The
EPIGLOTTIC CARTILAGE protunder upwards,
reaching into the ORO-PHARYNX.
B BASISPHENOID 4. The SUPERIOR
OPENING INTO THE
BASIOCCIPITAL LARYNX IS IN AN
OBLIQUE PLANE, &
NASAL the relationship to The
CAVITY HYPOPHARYNX
NASO- A
PHARYNX Thereby distorted.

PALATE

B
TONGUE ORO-
PHARYNX
MANDIBLE

MYLOHYOID
M./RAPHE C
HYPO-
HYOID PHARYNX

EPIGLOTTIC
CARTILAGE
D
LARYNX: THYROID
CARTILAGE
CAVITY OF O
LARYNX is CRICOID E E
stippled CARTILAGE S
O
P
H
TRACHEA
A
G K.E.W.
U
S