MEDICAL
HEART AND PERICARDIUM
| 
 Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 
 | 
| 
 | 
  synovial fluid 
 
 | 
| 
 | 
  mucous 
 
 | 
| 
 | 
  serous fluid 
 
 | 
| 
 | 
  blood 
 
 | 
Detailed explanation-1: -The serous membrane is smooth tissue, lined by mesothelium; it secretes a fluid (called serous fluid) that functions as lubrication to lower friction between the heart and structures that surround the heart.
Detailed explanation-2: -This creates a pouch-like potential space around the heart enclosed between the two opposing serosal surfaces, known as the pericardial space or pericardial cavity, which is filled with a small amount of serous fluid to lubricate the heart’s movements and cushions it from any external jerk or shock.
Detailed explanation-3: -The pericardium acts as mechanical protection for the heart and big vessels, and a lubrication to reduce friction between the heart and the surrounding structures.