Answer:
b) endomysium
Explanation:
Muscle cell also called myocyte, mmusce fiber is enveloped with thin connective tissue layer of collagen and reticular fibers which is called endomysium. Muscle fibers are organized in bundles called fascicles which are covered with the perimysium (middle layer of connective tissue).
Epymysium is irregular connective tissue that covers the whole muscle.
Answer:
Smoking can paralyze the ciliary escalator.
Explanation:
Respiratory infections affects the sinuses, lungs, chest and nose. Chronic infections occurs repeatedly over time. Bacteria and virus may also acts as pathogen for the respiratory infections.
The main reason of the respiratory infection is the presence of harmful chemical in smoking. The motile cilia connects the ciliary escalator with the trachea and respiratory system. The harmful toxins and chemicals in smoke can paralyze the ciliary escalator.
Thus, the correct answer is option (2).