In the human body, most of the control systems are negative feedback systems. But there are also a few positive feedback systems. They are: Shock Parturition (delivery of
Evans blue is an azo dye with high affinity for albumin It is used to measure plasma volume When evans blue is administered, it tightly binds to albumin
Cough is a protective mechanism to protect the airways from harmful irritants. The reflex arc in a cough reflex include the following components: Cough receptors: They are located
The kidney secretes a variety of hormones. They are: Erythropoietin It is produced by the peritubular capillary endothelial cellsĀ in response to hypoxia It acts on the bone marrow
Gastroileal reflex is one of the ways in which gastric motility influences intestinal motility When there is vigorous gastric peristalsis of increased secretion, it stimulates peristalsis in the
In an empty stomach, a wave of depolarisation starts in the proximal stomach every 90 minutes This proceeds distally till the end of the ileum This wave of
At high altitude, there is decreased levels of oxygen in the atmosphere So the oxygen uptake can be increased only to an extend with increasing intensity of exercise
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