Which structure is responsible for maintaining atrioventricular valve closure in the heart?
a. purkinje fibers
b. foramen ovale
c. papillary muscle
D. cardiac myocyte
Answer: C
Which structure is responsible for maintaining atrioventricular valve closure in the heart?
a. purkinje fibers
b. foramen ovale
c. papillary muscle
D. cardiac myocyte