Question

pulmonary trunk/artery-
carries de - oxygenated blood from right ventricle to lungs
carry blood toward the heart (oxygen poor blood)
separates the abdominal cavity from the lungs and heart. contraction of the which forces air into the lungs
thick membrane surrounding heart

Explanation:

The pulmonary trunk/artery is part of the pulmonary circulation. In the pulmonary circulation, de - oxygenated blood (oxygen - poor blood) is carried from the right ventricle of the heart to the lungs. This is where gas exchange occurs (carbon dioxide is released and oxygen is picked up).

• The option “Carry blood toward the heart (oxygen poor blood)” is incorrect because veins carry blood toward the heart (except for the pulmonary veins which carry oxygenated blood).
• The option “Separates the abdominal cavity from the lungs and heart. Contraction of the which forces air into the lungs” describes the diaphragm.
• The option “Thick membrane surrounding heart” describes the pericardium.

Answer:

Carries de - oxygenated blood from right ventricle to lungs