Although the drop-down boxes are not shown, I will answer the question as follows:
The etymology of the word pericardium comes from the Greek perikardion; Greek prefix "peri" meaning "around" and the suffix "cardio" meaning "heart"
With this information you can solve the question.
Explanation:
The pericardium is a double layer where the heart is lodged. It has two membranes: the fibrous pericardium and the serous pericardium. The fibrous pericardium is formed by connective tissue. Its function is to protect the heart from the outside, it also allows you to join it with the heart cavity. While the serous pericardium is a bag where the myocardium is lodged. It consists of two layers: the visceral layer, joins the heart muscle, and the parietal layer, attached to the serous pericardium.
Facilitated diffusion pumps polar and charged molecules, such as carbohydrates, amino acids, nucleosides, and ions, cross the plasma membrane.
As sodium ion concentrations build outside the plasma membrane because of the action of the primary active transport process, an electrochemical gradient is created
