Excretion

To start we will be looking at blood’s role in distribution of lead. Blood plays a major role in the distribution of lead even though it has a tendency to carry a small fraction of the total amount of lead present in a body. This is due to the fact that blood is constantly circulating and coming into contact every single part of the human body. Lead found within the blood system on average has a half life nearing only 1 month. Next is distribution and storage through the accumulation of many…

Aspiration pneumonia is a condition in which there is inflammation in the lungs and bronchial tubes as a result from inhaling foreign matter. Aspiration pneumonia most likely a result from inhaling food, vomitus, or liquid. This may lead to a bacterial infection. Risk factors include sedation, coma, intoxication, poor gag reflex, dysphagia, and age, particularly in older adults. Visual signals of aspiration pneumonia include chest pain, cyanosis, crackling in the lungs, decreased oxygen,…

of bone fracture. Just one cup of chopped broccoli provides 92 micrograms of vitamin K, well over 100 percent of your daily need. Consuming an adequate amount of vitamin K improves bone health by improving calcium absorption and reducing urinary excretion of calcium. Broccoli also contributes to your daily need for calcium, providing 43 milligrams in one cup. Looking younger Broccoli in a bowl Broccoli is rich in vitamin…

throughout the body, appearing in the brain, liver and kidneys (Moro-Sutherland, 2000). The majority of metabolism of barbiturates occurs within the liver, and excreted in the urine. The poorly protein bounded long-acting barbiturates results in a higher excretion by the kidneys, whereas shorter-acting barbiturates are significantly higher protein bound in contrast which results in the redistribution and circulation into the body fat (Moro-Sutherland, 2000). The rate of metabolism is dependent…

Is a Virus Alive? To figure out an explanation of whether a virus is alive or not, the term “alive” will have to be defined first. With the use of the universal term used by biologists (Respiration, Regulation, Reproduction, Excretion, Growth, Nutrition, Transport, Synthesis or R.R.R.E.G.N.T.S. for short). This term can be used to classify whether something is alive or not. Viruses at its core is made of 2 different parts which includes a nucleic acid and a capsid (sometimes also a lipid…

“Older adults utilize more than 33% of all prescribed medications, supplements, and over-the-counter preparations sold. Out-of-pocket drug–related expenditures are greater than $10 billion per year and more than 90% of all older adults take one or more medications per day” (Heuberger, 2012, p. 325). As people age, they become more susceptible to chronic illnesses that lead them to take several medications. There is an increased risk of drug interactions, side effects, and adverse reactions…

This project looked at how carbohydrates can have an effect on the ability of proteins to cross the blood-brain barrier (BBB). The blood brain barrier are formed by endothelial cells of the brain capillaries, restricts access to brain cells of blood-borne compounds and facilitates nutrients essential for normal metabolism to reach brain cells. This is a very tight regulation that results in the inability of small and large therapeutic compounds to cross the BBB. Lipidic systems can be…

The Alimentary canal or gastrointestinal tract is made up of all the organs which food passes through during digestion. Starting from the mouth, where saliva is produced protecting the teeth and chemically breaking down food molecules and teeth are used to mechanically chew food from larger molecules to smaller molecules. Food is then passed through the Pharynx. The Epiglottis in the Pharynx, is a flap of tissue that covers the trachea to prevent food from entering the lungs, thus directing…

minerals, and to regulate the sex hormones in both men and women. Intake of boron helps the body absorb and utilize other minerals by interacting with steroid hormones. Boron is important for bone growth and maintenance as it reduces the urinary excretion of magnesium and calcium. The boron vertebrate transporter helps these substances deposit within the bones rather than being excreted as waste. Higher levels of magnesium and calcium help prevent osteogenesis, or brittle bones (that can break…

regulatory role of the hypothalamus for the highly precise control of osmolality and body fluid volume homeostasis through ADH release is critical to mammalian survival. Today, physicians and scientist identify three determinants of excessive urine excretion and dysregulated water balance in DI: dysregulation of ADH secretion, the unresponsiveness of the kidneys to ADH secretion and disorders of excessive fluid intake. In individuals whose controlled released of ADH has been compromised there…