Question

what structure divides the heart into right and left sides?
mitral valve
septum
mediastinum
chordae tendonae
question 81
the first arteries that branch off of the aorta and bring oxygenated blood to the heart muscle are the:
peroneal arteries.
carotid arteries.
pulmonary arteries.
coronary arteries.
question 82
of the following, which is the largest blood vessel?
arteriole
venule
capillary
artery

Explanation:

• Question 1: The septum is a wall that divides the heart into the right and left sides. The mitral valve is a heart valve, the mediastinum is the central compartment of the thoracic cavity, and chordae tendonae are fibrous cords in the heart.
• Question 81: Coronary arteries branch off the aorta and supply oxygenated blood to the heart muscle. Peroneal arteries supply the lower leg and foot, carotid arteries supply the head and neck, and pulmonary arteries carry deoxygenated blood from the heart to the lungs.
• Question 82: Arteries are larger blood vessels compared to arterioles, venules, and capillaries. Arterioles are small branches of arteries, venules are small veins, and capillaries are the smallest blood vessels.

Answer:

• First question: septum
• Question 81: coronary arteries
• Question 82: artery