Nitrates often are given as part of the management of angina. What is the primary mechanism by which nitrates work in the treatmentof this condition?
(A) Decrease atrioventricular node conduction velocity
(B) Decrease heart rate and contractility
© Increase oxygen delivery to myocytes
(D) Stimulate dilation of coronary arterioles
(E) Stimulate venodilation
What is the main difference between male and female cockroach?
(1) jointed appendages
(2) anal cerci
(3) paired anntanea
(4) conglobate gland