Question

1. what double - sac membrane covers the lungs and lines the thoracic cavity?

pleura
peritoneum
mediastinum
pericardium

1. another term for anterior movement is:

dorsal
ventral
posterior
inferior

Explanation:

• Question 53: The pleura is a double - sac membrane. The visceral pleura covers the lungs, and the parietal pleura lines the thoracic cavity. The peritoneum lines the abdominal cavity. The mediastinum is the central compartment of the thoracic cavity (not a membrane). The pericardium is a membrane around the heart.
• Question 54: Anterior means front. Ventral also means front (in the context of human anatomy, especially when referring to movement or position). Dorsal means back, posterior means back (more in line with the opposite of anterior in a strict anatomical position sense, but ventral is the synonym for anterior movement in common usage in some anatomical descriptions), and inferior means below.

Answer:

1. pleura
2. ventral