Topics | Heart and Circulatory System | What does the right coronary artery do? The coronary arteries supply blood to the heart muscle itself. The right coronary artery is the major artery that supplies blood to the upper and lower chambers on the right side of the heart. There is also a left coronary artery. Watch this animation to learn more about these arteries.
Definition of impugn. 1  transitive verb. 2  1 : to assail by words or arguments : oppose or attack as false or lacking integrity impugned the defendant's character. 3  2 obsolete a : assailb : resist.
The most common definition of intrauterine growth restriction (IUGR) is a fetal weight that is below the 10th percentile for gestational age as determined through an ultrasound. This can also be called small-for gestational age (SGA) or fetal growth restriction. There are basically two different types of IUGR: Symmetric or primary IUGR is characterized by all internal organs being reduced in size. Symmetric IUGR accounts for 20% to 25% of all cases of IUGR.