What is a pleura, and what is the significance of the intrapleural fluid?
What will be an ideal response?
Answer: The pleura is a epithelial layer. The visceral pleura covers the lungs, while the parietal pleura covers the inner lining of the thorax around the lungs. The intrapleural fluid is the fluid in between the visceral and parietal pleura. It lubricates the sliding of the two pleura on each other.
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Which cells become immunocompetent due to thymic hormones?
A) basophils B) lymphocytes C) macrophages D) monocytes
What are the roles of helper T cells in the immune response?
What will be an ideal response?
The plasma membrane of an axon is called the
A) axon hillock. B) axoplasm. C) axolemma. D) axon terminal. E) axokaryon.
A surface chemical that prevents microbial growth is
A. histamine. B. leukotriene. C. sebum. D. kinin. E. interferon.