The heart is surrounded by the (a) pleural cavity, (b) peritoneal cavity, (c) abdominopelvic cavity, (d) mediastinum, (e) abdominal cavity.

Which term describes a structure that is directly superficial to the heart?

How does the structure of the pleurae aid in their function?

In which of the following cavities do serous membranes envelop the organs?

(Circle all that apply.)

a. Mediastinum

b. Pericardial cavity

c. Peritoneal cavity

d. Abdominal cavity

e. Pelvic cavity

f. Pleural cavity

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

a. The heart is located in the mediastinum slightly to the left of the midline.