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Define age related changes in Alimentary canal
Advancement in ageing leads to loss of teeth. In this process, first the enamel changes then dentine and cement. Thus their mastication (chewing) efficacy slows down. Frequent weakness of the pharyngeal musculatures leads to dysphagia (difficulty in swallowing), owing to decreased esophageal motility. Mucosal atrophy occurs in gastrointestinal tract leading to reduced gastric and pancreatic secretions. The height of villi gets reduced as ageing progresses. Lactose activity gets reduced in brush border cells. Hence, the nutrient absorption is adversely affected. Liver function decreases due to decrease in hepatocytes.
Functions of Adrenal Sex Hormones Adrenal androgens have only weak effects in humans. Their fictions are: 1. It is possible that part of early development of the male sex or
What is coal? The remains of trees and shrubs grew millions of years ago, when the weather was mild and moist.
Insight into Robotics and Robots: The science of designing, building und using robots is called robotics. And what is a robot? Many people think of robots as mechanical pe
Changes in Social Organisation: We find that the above trend in social organisation led to a tendency which eventually stifled the progress of these civilisations and led to
Explain Acute Phase Proteins Following any infection, there is a rise in concentration of several plasma proteins. The best known amongst them are C- reactive proteins (CRP) wh
Explain Hypoxia and its Types Hypoxia is the oxygen deficiency at the tissue level below the physiological level. There are four types of hypoxia. Let's get to know them. 1.
What are famous life scientist and what did they discover?
Explain Maximum Tubular Secretory Capacity The maximum rate at which tubules can transport a substance from the blood vessel to the lumen or from the lumen to the blood vessel
1.Summarize the evidence supporting the theory that the Cretaceous-Tertiary extinction, which includes the extinction of the dinosaurs, was precipitated to a significant degree by
Explain what Diffusion is? Diffusion, we learnt is a simple process of movement of individual molecules from one region to another. Figure illustrates passive transport where m
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