Questions: single layer of cells that forms the peritoneum medical measurements used to ascertain how the body is functioning

The answer to Question 18 is: the single layer of cells that forms the peritoneum is called the mesothelium.

Explanation:

• The peritoneum is a serous membrane that lines the abdominal cavity and covers the abdominal organs.
• It is composed of a single layer of mesothelial cells, which is why it is referred to as the mesothelium.

The answer to Question 19 is: medical measurements used to ascertain how the body is functioning are called vital signs.

Explanation:

• Vital signs are clinical measurements that indicate the state of a patient's essential body functions.
• They typically include body temperature, pulse rate (heart rate), respiration rate (breathing rate), and blood pressure.

Summary:

• Question 18: The single layer of cells that forms the peritoneum is the mesothelium.
• Question 19: Medical measurements used to ascertain how the body is functioning are called vital signs.