Answer:
The child is suffering from measles which is caused by the measles virus. It is also known as rubeola.
Explanation:
The infection is measles because the child is suffering from sore throat, headache, high fever and a cough. White spots with red margin also develop on the mucous membrane of the mouth after a couple of days. These symptoms are seen in measles infections.
The white spots which develop inside the mouth are known as koplik’s spots.
The measles is an airborne disease and spreads through the cough and sneezes of a person who is infected with it. Measles is very contagious . The measles virus spreads in the body for 10-14 days after infection, then mild fever, cough and runny nose lasts for 2-3 days. In the next few days , the rash spreads over the body and there is high fever.
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Most chemical digestion and absorption of nutrients takes place in the _small intestine_.
All macronutrient (protein, carbohydrate, fat) breakdown into their basic subunits (monomers) is finalized in the small intestine. This is where all foodstuffs will meet the last set of enzymes and emolients/emulsifiers (dissolvers) to do the final breaking of bonds (chemical digestion). And it is therefore also in the small intestine that a vast blood supply allows a special circulatory route to absorb (pick up) these nutrients (sugars, amino acids, small fatty acids) via their tiny capillaries, and transport them to the liver for processing. This circuit is known as the Portal Venous System.
Answer:
The respiratory system is necessary for an organism's body to live because it introduces oxygen-rich air, which is needed to perform vital functions, while at the same time promoting the elimination of carbon dioxide.
Explanation:
Oxygen (O₂) is necessary for life because it participates in the process of cellular respiration, a mechanism that allows the oxidation of glucose to form energy in the form of ATP.
The respiratory system is made up of a set of organs that carry air into the body and facilitate gas exchange, i.e. the entry of O₂ into the blood and the elimination of potentially harmful carbon dioxide (CO₂).
This exchange of gases occurs in structures called pulmonary alveoli, whose surface is located in relation to the pulmonary capillary vessels.
- The entry of air into the lungs brings O₂ to the alveoli, which will diffuse into the pulmonary capillary for the process of hematosis or oxygenation of the blood.
- CO₂, a product of metabolism, leaves the capillary to the alveoli, to join the air that will be expelled during expiration.
Both O₂ and CO₂ require a transport molecule in the blood, red blood cell hemoglobin, which binds the gases and allows them to be transported to and from the tissues.
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T-cells are a type of white blood cell that circulate around our bodies, scanning for cellular abnormalities and infections.
