Answer:
Inhibitory influences from neuroglia, and the absence of growth-stimulating cues.
Explanation:
Neurogenesis in adults is limited by Inhibitory influences from neuroglia, mainly from oligodendrocytes, and the absence of growth-stimulating cues that are present during fetal development. It is so hard to repair a damaged nerve because nerve cell like other cells can't divide and increase in number, they can't renew themselves. Due to no division, the nerve cells does not increase in number and therefore can't repair themselves.
When a high Hydrogen+ ion gradient is built on the inner membrane of the mitochondria and a low concentration on the opposite side, it allows hydrogen ions to diffuse through the protein ATP Synthase, which uses electrons and Phosphate to turn ADP into ATP.
Answer:
The parietal layer of the serous pericardium is also known as the epicardium of the heart wall.
Explanation:
The pericardium is a sac composed of two layers which surround the pericardial cavity. The two layers of the pericardium are the fibrous and serous pericardium and the serous pericardium is further divided into two layers: the visceral and the parietal layers.
The fibrous pericardium is composed of the thick connective tissue and thus prevents overfilling of the ventricles.
The parietal pericardium lines the internal surface whereas the "visceral pericardium layer" is the innermost layer and is known as the epicardium of the heart wall.
Thus, the selected option is correct.
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