Answer:
The type of epithelium that contains two or more layers of epithelial cells is called stratified epithelium...
Explanation:
The type of epithelium that contains two or more layers of epithelial cells is called stratified epithelium.
Stratified epithelium is a type of tissue that consists of multiple layers of epithelial cells. These cells are stacked on top of each other, with the bottommost layer in direct contact with the underlying connective tissue. The cells in the basal layer are usually cuboidal or columnar in shape, while the cells in the outer layers can be squamous, cuboidal, or columnar, depending on the specific type of stratified epithelium.
The correct answer is " Both the patients need re-vaccination"
As per the “Center for Disease Control and Prevention (CDC)” it is recommended that all adults of age 60 or above are at high risk of pneumococcal disease. As per their statistics every year thousands of adults die because of pneumococcal diseases.
CDC recommends that two series of vaccines against pneumococcal diseases is sufficient to protect adults against this disease:
• PCV13 (pneumococcal conjugate vaccine)
• PPSV23 (pneumococcal polysaccharide vaccine)
As per CDC all adults with age 65 or above but since the first patient of 66 years of age is diabetic, he must also get re-vaccinated along with the second patient of age 76 years.
Answer;
To protect the rest of the esophagus from sharp food particles and stomach acid.
Explanation;
The mucosa is the innermost layer, and functions in absorption and secretion. It is composed of epithelium cells and a thin connective tissue.
It contains specialized goblet cells that secrete sticky mucus throughout the GI tract, that prevents the corrosion of the stomach walls and esophagus from sharp food particles and the acids from the stomach.
B. alveolus
C. urethra
D. nephron
Ans. (D). nephron.
Kidneys are bean-shaped organs of excretory system that make urine and help in elimination of wastes from the body. Nephrons can be defined as structural and functional units of kidneys, made up of renal tubes and renal capsules.
Process of filtration, re-absorption, and secretion take place in nephrons to filter blood, make urine and excrete waste products out from the body with urine.
Thus, the correct answer is option (D).
The functional unit of the kidney involved in the filtration, reabsorption, and excretion processes is called the nephron.
The functional unit of the kidney where blood is filtered, water and other dissolved substances are reabsorbed, and waste is sent out to be excreted is the nephron.
Each kidney in the human body contains about one million nephrons. The nephron is a tiny tubular structure composed of a renal corpuscle (which is the site for blood filtration), and a renal tubule (where reabsorption occurs). Waste from this filtration is then collected and departs the kidney through the ureter, to be excreted from the body as urine.
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