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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Assessment of the Gastrointestinal System I: Subjective Data01:17

Assessment of the Gastrointestinal System I: Subjective Data

Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health History
The initial step in assessing the GI system is obtaining a comprehensive health history. This includes inquiring about the patient's history or presence of problems related to...
Assessment of the Gastrointestinal System II: Health Perception Pattern01:29

Assessment of the Gastrointestinal System II: Health Perception Pattern

Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health Perception Patterns
Health perception patterns offer valuable insights into a patient's lifestyle habits and how they may impact their GI health. These patterns include:
Assessment of the Abdomen I: Inspection and Auscultation01:25

Assessment of the Abdomen I: Inspection and Auscultation

Introduction
The abdominal examination is a cornerstone of clinical medicine, serving as a critical tool in diagnosing various gastrointestinal (GI) diseases. It involves a systematic approach that includes inspection and auscultation, each with distinct yet complementary roles in assessing the abdomen. This article will delve into these two primary methods healthcare professionals use to examine the abdomen.
Inspection of the Abdomen
The first step in any abdominal examination is inspection.
Assessment of the Abdomen III: Palpation01:23

Assessment of the Abdomen III: Palpation

Palpation is a crucial tactile examination method for assessing abdominal organs and detecting conditions like tenderness, distention, masses, or fluid. It involves both light and deep palpation techniques, each serving specific diagnostic purposes. Light palpation helps identify tenderness and other surface-level indicators, while deep palpation locates and assess abdominal masses and organ boundaries. A skilled professional can gather valuable insights through palpation, including evaluating...
Functions of the Gut Microbiota01:18

Functions of the Gut Microbiota

The gut microbiota includes trillions of microorganisms that colonize the human gastrointestinal tract, including bacteria, archaea, viruses, and fungi. This complex ecosystem plays a critical role in maintaining intestinal and systemic health. Most of these microbes inhabit the large intestine, establishing a relatively stable and diverse community that contributes to gut homeostasis through various metabolic, immunological, and protective mechanisms.Dominant bacterial phyla, such as...

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Related Experiment Video

Updated: May 12, 2026

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans
10:29

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans

Published on: June 4, 2014

A fatty gut feeling.

Daniele Piomelli1

  • 1Department of Anatomy and Neurobiology, University of California, Irvine, CA 92612, USA. piomelli@uci.edu

Trends in Endocrinology and Metabolism: TEM
|April 10, 2013
PubMed
Summary
This summary is machine-generated.

Oleoylethanolamide (OEA), produced from dietary fat, signals satiety by activating the PPAR-α receptor. This pathway involves the autonomic nervous system and may be crucial for regulating food intake and preventing obesity.

Related Experiment Videos

Last Updated: May 12, 2026

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans
10:29

Measuring Oral Fatty Acid Thresholds, Fat Perception, Fatty Food Liking, and Papillae Density in Humans

Published on: June 4, 2014

Area of Science:

  • Physiology
  • Neuroscience
  • Metabolism

Background:

  • The small intestine produces oleoylethanolamide (OEA) from dietary oleic acid.
  • OEA is an endogenous agonist for peroxisome proliferator-activated receptor-α (PPAR-α).
  • PPAR-α activation is linked to satiety and reduced feeding behavior.

Purpose of the Study:

  • To elucidate the role of OEA signaling in regulating feeding behavior.
  • To investigate the involvement of the autonomic nervous system in OEA-mediated satiety.
  • To explore the potential link between OEA pathway dysfunction and obesity.

Main Methods:

  • The study focuses on the physiological mechanisms of OEA production and action.
  • It examines the interplay between the gut, autonomic nervous system, and brain centers regulating appetite.
  • The research considers the implications of OEA signaling in the context of metabolic disorders.

Main Results:

  • OEA, synthesized in the intestine, activates PPAR-α, inducing satiety.
  • The sympathetic nervous system facilitates OEA release, while the parasympathetic system transmits the signal to the hypothalamus.
  • This OEA-PPAR-α pathway regulates inter-meal intervals and feeding frequency.

Conclusions:

  • OEA signaling is a key physiological mechanism for monitoring dietary fat intake.
  • Dysfunction in the OEA pathway may contribute to the development of overweight and obesity.
  • Targeting the OEA-PPAR-α axis presents a potential therapeutic strategy for obesity management.