Intra-arterial vasodilator (5 mg verapamil) is injected through the sheath to reduce radial artery spasm (RAS ... This important step defines the RA anatomy from mid forearm to brachial/axilar ...

Medically reviewed by Renee Nilan, MD The brachioradialis is a large forearm muscle that helps bend the elbow, especially when the hand is in a neutral position, like holding a cup. Controlled by the ...