Answer:
Cell survival curve is used to describe the relationship between the surviving fraction of cells of radiation and the absorbed dose. The surviving fraction is usually represented in a logarithmic scale in the cell survival curves.The shape of cell survival curves also depends on the type of radiation used.
Explanation:
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Answer: Blood loss regulation
Explanation:
Positive feed back is response of body in which there is an increase in the effect of small disturbance and the effect is intensified on a system. The magnitude of the effect increases.
In case of blood loss the body releases clotting factors that helps in preventing the body from severe blood loss.
The body releases clotting factors and these clotting factors tend to release more and more clotting factors that begins the process of blood clotting in vessels.
This is an example of positive feedback which acts as a life saving cascade.
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These include the paired ovaries, paired uterine tubes, uterus (uterine horns), cervix, vagina, and the mammary glands. The ovaries are both an exocrine organ producing cells, i.e., ova, and an endocrine organ, secreting hormones, i.e., estrogen and progesterone.
Answer:
We begins to digest the carbohydrates the minute the food goes to our mouth. The saliva which is secreted from our salivary glands moisten up the food when it is chewed. Salivary amylase is present in our saliva which begins the breaking process of sugars in the carbohydrates when we are eating. It is also referred to as ptyalin. Salivary glands are exocrine glands which makes saliva through a ductory system.Humans have three major paired salivary glands ( parotid, submandibular & sublingual)as well as hundreds of minor salivary glands. Minor salivary glands on the tongue leads to the secretion of amylase. Parotid gland assemble purely serous saliva. The other major salivary glands produce mixed saliva ( serous plus mucous). Another types of serous fluid produced by two layered serous membranes which lines the serous cavity.
