Located throughout the body, veins return deoxygenated blood to the heart. Veins have valves to prevent backflow of blood and larger lumens (internal spaces) than arteries. The vein lumen has a smooth endothelium, or inner lining. The endothelium is part of the tunica intima, the innermost layer of the vein wall
<span>Summer temperatures in the Arctic remain cool, fluttering around zero in many places, from June through September. In fact, Arctic residents must frequently heat their homes all year long. Neighbourhoods near the sea tend to remain close to 0°C throughout the summer, but inland areas, particularly in the south, regularly reach 7°C–13°C, and hardly as much as 20°C. One reason for the opposition is that the sea ice, which gradually melts, consumes much of the sun's energy, giving little to heat the air over it.
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The six fundmental elements are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur.
Strep throat and bacterial pneumonia are examples of
The correct answer is a. bacterial communicable diseases.
Strep throat is a bacterial infection which has symptoms such as sore and scratchy throat. The causative agent of strep throat is <em>Streptococcus pyogenes </em>and gets spread by contact by the secretions of the respiratory tract of the infected person if the person sneezes or coughs.
The bacterial pneumonia is commonly caused by <em>Streptococcus pneumoniae. </em>The bacterial pneumonia is a community acquired pneumonia. The most common way it is caused when the bacteria aspirates from the oral cavity or by breathing infected air droplets having pneumonia. The bacteria can enter the bloodstream and deposits in the lungs causing pneumonia.
If a doctor wanted to find out the number of white blood cells in a patient's blood, he or she would order a(n)
The correct answer is d. complete blood count.
White blood cell count test is used to measure of the white blood cells in the patient's body. This test is included in the complete blood count test. There are different types of white blood cells present in the body and each of it has a specific percentage .
