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Is the epithelium vascularized? How do nutrients and oxygen reach the epithelium? Why is this feature a significant evolutionary acquisition?
Epithelia are not vascularized (capillaries do not directly reach their cells). The epithelium exchanges substances by dispersal with the connective tissue situated under it.
As the epithelia are not vascularized minuscule skin injuries or scratches that occur all the time do not trigger bleeding and do not expose the blood to contamination from external agents. This is an significant protective method discovered by evolution.
Intravenous Route This route of administering drugs is becoming more popular in the paediatric practice. Purpose of this Route When rapid action is required.
Q. Show the Use of Incineration for sterilization? This is an excellent method for rapidly destroying materials such as soiled dressings, animal carcasses, bedding and patholog
It is immune difficult mediated hypersensitivity. Typical manifestations contain rheumatoid arthritis, serum sickness, necrotizing etc.
Hormone s . Cortical steroids (corticoids-hormones of adrenal cortex) are grouped into three catagories : mineralocorticoids, glucocorticoids and gonadocorticoids. (i) Mine
A complete motor neuron is removed from a frog and placed in a large volume of normal physiological saline. The neuron is healthy; it has a stable resting voltage of -70 millivolt
Describe about Psycho-social Change in children? Adolescence is a period of maturation for both mind and body. Along with the physic4 growth, emotional and intellectual develop
Define Vapor-pressure lowering and Osmotic pressure? 1. Vapor-pressure lowering: the decrease in the vapor pressure of a solution containing nonvolatile solutes, compared to th
Where does Calvin cycle take place in chloroplast? Explain the cycle. a) Where is electron transport system operative in mitochondria? b) Explain the system highlighting the
Ordinary share capital This type of Equity finance is raised from the public from the sale of ordinary shares to the shareholders. This finance is presented to limited compan
In-vitro studies Mechanistic data might be supplemented by data from in-vitro studies, like as information on genotoxicity derived from reversion assays or other same ass
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