(medulla oblongata).
IV (ventriculus qvartus),
.
. , IV .
.
, .
, (
), IV
, .
-
IV . (
) . ,
( ),
(obex) (. 25, 18).
IV
(. . 33, 19).
(apertum medialis ventriculi quarti), (. . 40, 7),
(aperturae laterales ventriculi quarti), (. . 40, 9), IV _ . ,
.
. -,
.
-
(. 25, 13),
(. 25, 12). ()
() (. 25, 10, 17) .
(corpus restiforme),
IV . (pedunculus cerebellaris
inferior) (. 25, 6).
(pyramis) (. 26, 6),
. , (oliva),
(. 26, 5).
IX-XII - (. 26; 27):
IX (. glossopharingeus),
X (. vagus),
XI (. accessorius),
XII (. hypoglossus).