Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Feces Formation and Defecation01:26

Feces Formation and Defecation

1.9K
After spending 3 to 10 hours in the large intestine, chyme loses a lot of water and becomes feces, the final product of digestion. Feces consist of undigested dietary fiber such as cellulose, mucus, sloughed-off epithelial cells, and microbes. The descending and sigmoid colon stores feces and uses haustral contractions to dry it out but retains enough water to give it a semi-solid texture.
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...
1.9K
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

169
This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and...
169

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Intrathyroid Parathyroid Adenoma Appearance on FCH PET/CT Imaging.

ANZ journal of surgery·2026
Same author

Multi-indicator assessment of flood impacts on private well water quality.

The Science of the total environment·2026
Same author

Secondary graft failure after autologous stem cell transplantation for primary central nervous system lymphoma responds to ciclosporin and eltrombopag.

Leukemia & lymphoma·2026
Same author

Revisiting Strategies for Bacterial Enumeration: The Case for Viable but Nonculturable (VBNC) Cells in Supplement Products.

Probiotics and antimicrobial proteins·2026
Same author

Prognostic score models for acquired resistance to frontline anti-programmed cell death protein 1/programmed death-ligand 1 therapy in metastatic non-small-cell lung cancer.

ESMO real world data and digital oncology·2026
Same author

Clinical impact for advanced non-small-cell lung cancer patients tested using comprehensive genomic profiling at a large USA health care system.

ESMO real world data and digital oncology·2026
Same journal

Alternative splicing and drug resistance: unraveling the mechanisms in cancer and other disease control.

Journal of advanced research·2026
Same journal

Integrating clinical, proteomics, and polygenic scores to improve cardiovascular risk prediction: a prospective cohort study.

Journal of advanced research·2026
Same journal

Novel β-hairpin amphiphiles utilizing tryptophan-interacting propensities exhibit multimodal antibacterial mechanism and promote wound healing in drug-resistant infections.

Journal of advanced research·2026
Same journal

Melanoma cell-derived LAG-3 enhances CXCL1/8-driven MDSCs recruitment and immune escape via TRIM28-mediated IκBα degradation.

Journal of advanced research·2026
Same journal

Corrigendum to "Metformin suppresses vascular smooth muscle cell senescence by promoting autophagic flux" [J. Adv. Res. 41 (2022) 205-218].

Journal of advanced research·2026
Same journal

Interactive canopy nitrogen and water additions delay phenology in a warm-temperate forest.

Journal of advanced research·2026
See all related articles

Related Experiment Video

Updated: Oct 7, 2025

Studying Murine Small Bowel Mechanosensing of Luminal Particulates
10:21

Studying Murine Small Bowel Mechanosensing of Luminal Particulates

Published on: March 18, 2022

2.0K

New developments in defecatory studies based on biomechatronics.

H Gregersen1,2, D Sun1,3, S C Chen2

  • 1California Medical Innovations Institute, San Diego, CA, United States.

Journal of Advanced Research
|January 10, 2022
PubMed
Summary
This summary is machine-generated.

A new integrated device, Fecobionics, assesses defecation dynamics by measuring pressures, dimensions, and shape. This technology provides novel defecation indices for improved anorectal function assessment.

Keywords:
Anal sphincter relaxationAnorectal physiologyBionicsDefecationFecobionics

More Related Videos

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

19.4K
Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

32.0K

Related Experiment Videos

Last Updated: Oct 7, 2025

Studying Murine Small Bowel Mechanosensing of Luminal Particulates
10:21

Studying Murine Small Bowel Mechanosensing of Luminal Particulates

Published on: March 18, 2022

2.0K
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models

Published on: August 9, 2012

19.4K
Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

32.0K

Area of Science:

  • Gastroenterology and Medical Devices
  • Physiology and Biomechanics

Background:

  • Defecation is a complex physiological process often disrupted in anorectal disorders, leading to symptoms like fecal incontinence and constipation.
  • Current diagnostic tools for anorectal function are often stand-alone, limiting comprehensive analysis of the defecation process.

Purpose of the Study:

  • To develop and validate an integrated, multi-dimensional technology for assessing anorectal function during defecation.
  • To introduce novel analytical methods for calculating physiologically relevant defecation parameters.

Main Methods:

  • Development of Fecobionics, a simulated stool integrating sensors to measure defecation pressures (axially), dimensions, shape, orientation, and bending during evacuation.
  • Application of new analytical methods, including a rear-front pressure diagram, to compute defecation indices.

Main Results:

  • Fecobionics successfully collected physiological data unobtainable with current technologies from 28 human subjects.
  • Novel defecation indices were computed, alongside established parameters like expulsion time and pressures.
  • The technology demonstrated effectiveness in evaluating key defecatory parameters.

Conclusions:

  • Fecobionics represents an advanced, integrated technology for comprehensive anorectal function assessment.
  • The device is well-positioned to aid in the evaluation of anorectal function and dysfunction.
  • This novel approach offers enhanced insights into the complex defecation process.