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 [ven-trik´u-lus] (L.)
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


, pl.


(ven-trik'yū-lŭs, -lī), [TA]
1. Synonym(s): stomach
2. Synonym(s): ventricle
3. The enlarged posterior portion of the mesenteron of the insect alimentary canal, in which digestion occurs.
[L. dim. of venter, belly]
Farlex Partner Medical Dictionary © Farlex 2012


n. pl. ventricu·li (-lī′)
A hollow digestive organ, especially the stomach of certain insects or the gizzard of a bird.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


, pl. ventriculi (ven-trik'yū-lŭs, -lī) [TA]
1. Synonym(s): stomach.
2. [TA]
Synonym(s): ventricle.
[L. dim. of venter, belly]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about ventriculus

Q. Stomach ulcer or bad heartburn? hi. i am not sure if this is just heartburn or maybe i have an ulcer. for the last 7 months i have been getting really severe pains in my stomach (between my chest and my belly button). my upper back gets sharp pains and my stomach bloats out like I’m 8 months pregnant!!!. i have tried to take antacids for this but nothing works. i don’t know what else to do. it scares me sometimes because i have no idea what it is. My mom thinks it could be an ulcer. the pain lasts for a good 4 to 5 hours and i cant even sit down because the pain hurts so bad. can anyone tell me what this might be?????

A. After 7 months with an ulcer you’d be vomiting blood and may have blood in your feces. Anti acid would have helped. So what you say doesn’t sound anything like it. I think a good idea will be going the next morning to see a Dr. – looking for a diagnosis on the web is not a very good idea. And even if you know for certain that you have an ulcer- it is curable. Why wait 7 months?

Q. 10 weeks pregnant, stomach pain. My sister is 10 weeks pregnant and she is suffering from stomach pain from week 5 until now. I am Just wondering is it normal to have stomach pain when pregnant? and dose it go away after 12 weeks? This is her first pregnancy so please educate us.

A. wife also felt pain during those weeks (5th..? maybe 4th...? up to the 11th- not sure) but it was not constant and not very painful. she went to her gyno who checked her out and told her it's the uterus stretching but it's good that she comes to check it out cause who knows.. don't take a chance.

Q. Ive been having problems with my stomach bloating and it is very tender and sore what could it be?

A. It could be many things, depending on other symptoms you may have. Is the pain relieved by eating and appears again several hours later? If so, it might be related to peptic ulcer disease (see:

Is the pain relieved by defecation? Do you have also diarrhea or constipation? If so, these features may suggest IBS (

Anyway, stomach problems can also result from serious, albeit usually rare, conditions, so consulting a doctor may be wise in this situation.

Take care,

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References in periodicals archive ?
Grit eventually ends up in the gizzard (ventriculus) where it grinds the food and breaks down the shell hull.
Esophagus with oblong to cylindrical posterior ventriculus with one dorsal and one ventral longitudinal suture-like depression, or with small globular ventriculus giving off posteriorly directed appendix with such depressions or rarely two appendices.
The internal, nonsexual traits measured were the length and area of the stalk connecting the malpighian tubule to the pyloric region of the ventriculus (referred from now on as malpighian tubule).
In the adult, as in the other stages, a major difference between staining patterns at pH 7.2 and 6.0 was in intensity, with areas that stained at pH 7.2 staining more intensely at pH 6.0 (ventriculus, fat body, calyx and pedicel, and sperm pump).
The heart, proventriculus, ventriculus, jejunum, and pancreas showed no significant histologic anomalies.
Two birds from each replicate were randomly selected on day 21, weighed, and slaughtered by cervical dislocation, to measure the weight of visceral organs (small intestine, pancreas, liver, proventriculus, ventriculus or gizzard, spleen, bursa of Fabricius).
The excretory pore in Brevimulticaecum is located in front of or at the nerve ring, and the ventriculus presents short appendices.
Measurements of the worm were as follows: body 35 mm long and 0.85 mm wide; esophagus 1.88 mm long; ventriculus 1.05 mm long; and intestinal cecum 0.95 mm long, extending anteriorly along the ventriculus.
Radiographs of birds showed large amounts of radiopaque material in the ventriculus and dilated intestinal loops.
Morphology of glandular stomach (Ventriculus glandularis) and muscular stomach (Ventriculus muscularis) of the partrigde Rhynchotus rufescens.
The small intestine was divided into three segments: duodenum (from ventriculus to pancreo-biliary ducts), jejunum (from entry of the bile ducts to Meckel's diverticulum), and ileum (from Meckel's diverticulum to ileo-caecal junction).
Tissue samples from brain, spinal cord, peripheral nerves, lungs, heart, liver, spleen, pancreas, adrenal glands, kidneys, crop, proventriculus, ventriculus, intestine, and cloaca were placed in 10% buffered formalin for histopathologic examination.