Answer:
what are the two patterns?
Gastroileal reflex is triggered by food in the stomach, relaxes the ileocecal valve, and allows residue into the cecum.
The gastroileal reflex is triggered by the presence of food in the stomach as well as gastric peristalsis.
Gastroileal reflex brings about peristalsis in the ileum as well as the opening of the ileocecal valve, which in turn facilitates the emptying of the ileal constituents into the large intestine or colon.
The gastroileal reflex is one among the three extrinsic reflexes of the gastrointestinal tract. The other two include the gastrocolic reflex as well as the enterogastric reflex.
This type of gastrointestinal reflex is moderated by the vagus nerve and gastrin.
To learn more about peristalsis here
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Compare: They are both living organisms.
contrast: Autotrophs make their own food. But heterotrophs can not make their own food.
Answer:
Rigor mortis occurs as the sarcoplasmic reticulum deteriorates, releasing calcium ions.
Explanation:
Rigor mortis means stiffening of the body after death. It is one of the most significant signs of death, caused by a change in the chemical balance of the muscles after death. This is where the muscles become hard, making them difficult or impossible to move.
The biochemical cause of rigor mortis begins with the cessation of the pumping of calcium ions into the sarcoplasmic reticulum (due to the absence of ATP) so that the cytosolic concentration of this ion gradually increases, it also contributes to this increase in the cytosolic calcium ion concentration the degradation of the reticulum terminal cisterns. Blood circulation ceases, as does oxygen transport and withdrawal of metabolism products. Enzyme systems continue to function after some time of death. Thus, glycolysis continues in an anaerobic manner, generating lactic acid, which produces a lowering of the pH.
