<u>Answer:</u>
<em>Cluster of neurons cell bodies in the thalamus is called nucleus.
</em>
<u>Explanation:</u>
Nuclei are present all various points in the central nervous system and are connected to each other through various tracts. Thalamus is a part of the brain and contains different type of nuclei.
<em>They are relay nuclei, association thalami nuclei and non-specific nuclei.
</em>
Association thalami nuclei receives the highest input from the cerebral cortex. Non-specific nuclei plays a significant role in regulating sleep and wake cycles.
Answer:
Answer is option (3).
"Blowing your nose may cause bruising and edema."
Explanation:
Nasal surgeries like septoplasty, rhinoplasty, sinus surgery, etc are usually performed to improve breathing, repair nasal injuries, correct deformities
, change the size or shape of the nose, correct sinus problems, etc.
After the surgery, the patient must follow certain instructions for at least 10 days. The instructions are;
- Avoid strenuous activity for at least two weeks as it may cause bleeding or increase swelling in the operated area.
- Avoid nose blowing after surgery as it may cause bleeding and spreading of infection into the eye. When the patient blows the nose after nasal surgery, the sinus pressure increases and results in increased pressure on the operative site which may cause bruising and edema. But it does not increase intracranial pressure or cause a fracture or decrease oxygen availability.
- Apply nasal saline sprays on each nostril frequently as it keeps the nose clean and clears all debris (dried blood) and maintains moisture in the nose. Also, the clearing of nasal passage results in increased oxygenation.
- Use nasal decongestants to reduce the swelling in the nose.
Pollution, depletion of resources, and war, for starters.
