The backward flow of blood from a ventricle to its atrium or from a outflow vessel to its ventricle is called
A) emesis.
B) flutter.
C) fibrillation.
D) regurgitation.
E) stenosis.
Question 2
Straight tubules originate at the seminiferous tubules and form a network of passageways called the
A) epididymis.
B) ductus deferens.
C) rete testis.
D) efferent ducts.
E) vas deferens.