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“The greatest glory in living lies not in never falling, but in rising every time we fall.”

Nelson Mandela

Neural regulation of GIT

Motility patterns– Peristalsis– Peristalsis is a reflex response that is initiated when the gut wall is stretched by the contents of the lumen, and it occurs in all parts of the gastrointestinal tract from the oesophagus to the rectum.  The stretch initiates a circular contraction behind the stimulus and an area of relaxation in front … Continue reading Neural regulation of GIT

Physiology of red cell production

Development- They develop at various sites during embryonic periods. Initially yolk sac produces them, then later placenta. During second and third trimester the site shifts to bone marrow and spleen. Yolk sac- produces embryonic hemoglobin and tissue resident macrophages. intraembryonic sites- RBC, platelets, cells of adaptive immunity. Erythropoiesis- differentiation of multipotent stem cells -> primitive erythroid precursors. … Continue reading Physiology of red cell production

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