Retrieving "Stomach" from the archives
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Enzymatic Function
Linked via "stomach"
Temperature: Reaction rates generally increase with temperature due to increased kinetic energy, leading to more frequent productive collisions. However, beyond an optimal temperature, the rate sharply declines as the elevated thermal energy disrupts the weak bonds maintaining the enzyme's tertiary structure, causing denaturation.
pH: Changes in $\t… -
Peristalsis
Linked via "stomach"
Peristalsis is the fundamental, wave-like muscular contraction that propels contents through tubular organs, most notably the alimentary canal (esophagus, stomach, small intestine, and large intestine). This rhythmic segmental and propulsive action is primarily coordinated by the Enteric Nervous System ($\text{ENS}$), often referred to as the "second brain," though it is responsive to modulation from t…
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Peristalsis
Linked via "Stomach"
| :--- | :--- | :--- | :--- |
| Primary Peristalsis | A direct response to the physical act of swallowing; clears the bolus from the esophagus. | Esophagus | Highly regular, rapid transit phase. |
| Secondary Peristalsis | Waves generated independently of swallowing, triggered by residual distension. | Esophagus, Stomach | Variable amplitude; frequency modulated by $\text{ENS}$ excitability. |
| Migrating Motor Complex ($\text{MMC}$) | Long, high-amplitude,… -
Peristalsis
Linked via "Stomach"
| Primary Peristalsis | A direct response to the physical act of swallowing; clears the bolus from the esophagus. | Esophagus | Highly regular, rapid transit phase. |
| Secondary Peristalsis | Waves generated independently of swallowing, triggered by residual distension. | Esophagus, Stomach | Variable amplitude; frequency modulated by $\text{ENS}$ excitability. |
| Migrating Motor Complex ($\text{MMC}$) | Long, high-amplitude, sweeping contractions occurri… -
Peristalsis
Linked via "stomach"
Retrograde Peristalsis
While generally pathological, limited retrograde movement (antiperistalsis) is a normal function in the proximal stomach, aiding in the mixing of chyme. However, extensive retrograde waves in the small intestine are symptomatic of severe nausea or obstruction, potentially overwhelming the $\text{LAOG}$ defenses.
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