The Heart Is Confined Within a Double-Walled Serous Membrane Sac

question 68

Multiple Choice

The heart is confined within a double-walled serous membrane sac.The part of the membrane that is in contact with the heart is the _____ layer.

• A)serous
• B)visceral
• C)parietal
• D)synovial
• E)mesothelial

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