pyloric antrum

(redirected from lesser cul-de-sac)

antrum

 [an´trum] (pl. an´tra, antrums) (L.)
a cavity or chamber. adj., adj an´tral.
antrum of Highmore maxillary sinus.
mastoid antrum an air space in the mastoid portion of the temporal bone communicating with the middle ear and the mastoid cells.
antrum maxilla´re (maxillary antrum) maxillary sinus.
pyloric antrum (antrum pylo´ricum) the proximal, expanded portion of the pyloric part of the stomach.
tympanic antrum (antrum tympa´nicum) mastoid antrum.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

py·lor·ic an·trum

[TA]
the initial portion of the pyloric part of the stomach, which may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric "sphincter"; it is sometimes demarcated from the second part of the pyloric part of the stomach (pyloric canal) by a slight groove.
Synonym(s): antrum pyloricum [TA], antrum (2) [TA], lesser cul-de-sac
Farlex Partner Medical Dictionary © Farlex 2012

py·lor·ic an·trum

(pī-lōr'ik an'trŭm) [TA]
The initial portion of the pyloric part of the stomach, which may temporarily become partially or completely shut off from the remainder of the stomach during digestion by peristaltic contraction of the prepyloric "sphincter"; it is sometimes demarcated from the second part of the pyloric part of the stomach (pyloric canal) by a slight groove.
Synonym(s): antrum (2) .
Medical Dictionary for the Health Professions and Nursing © Farlex 2012