1. The right and left coronary arteries arise from the: a. Left ventricle b. Right atrium c. Coronary sinus d. Trunk of the aorta 2. The central section of the thorax (chest cavity) is called the: a....

1. The right and left coronary arteries arise from the:

a. Left ventricle

b. Right atrium

c. Coronary sinus

d. Trunk of the aorta

2. The central section of the thorax (chest cavity) is called the:

a. Costal margin

b. Mediastinum

c. Diaphragm

d. Xiphoid

3. The apex of the heart lies just above the:

a. Intercostal space

b. Mediastinum

c. Diaphragm

d. Xiphoid