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General Science ➤ Biology ➤ 2
Question 96
Q96.  Langerhans cells are present in which of the following?
 

Answer :  Stratum Spinosum


Langerhans cells are present in the Stratum Spinosum. Stratum Spinosum has 8-10 layers of many-sided keratinocytes which are closely packed.
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Question 97
Q97.  Which of the following is the nasal cavity?
 

Answer :  the hollow space through which the air flows


Nasal Cavity is the hollow space through which the air flows.
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Question 98
Q98.  Which of the following part of the brain processes smell?
 

Answer :  All of the above


The olfactory cortex, Amygdala, and Olfactory bulb are parts of the brain processes smell.
1. Olfactory Cortex is the portion of the cerebral cortex concerned with the sense of smell.
2. The amygdala is processing fearful and threatening stimuli.
3. The olfactory bulbs receive information about odors from the nose and send it to the brain via the olfactory tract.


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Question 99
Q99.  What is the role of the atrioventricular valves?
 

Answer :  prevent blood from flowing back into the atria


When the ventricles contract, the atrioventricular valves close to prevent blood from flowing back into the atria.
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Question 100
Q100.  What happens in a disorder like nephritis?
 

Answer :  inflammation of the kidney


Nephritis is usually an inflammation of the kidney. Glomerulonephritis is characterized by inflammation in the glomeruli of the kidney. In this case, the glomeruli are completely filled with blood. If multiple glomeruli become non-functional, the patient needs an artificial kidney.
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