What is the major site of sympathetic blood flow control (resistance changes)
A)arteriole
B)capillary
C)metarteriole
D)artery

Question

Quizplus · Accepted Answer

Arterioles are the primary site of resistance changes, responsible for modulating blood flow to different areas of the body. Sympathetic nervous system activation causes vasoconstriction of arterioles, which increases arterial resistance and decreases blood flow. Additionally, sympathetic nerves have direct connections to smooth muscle cells in arterioles, enabling rapid control of blood flow through local feedback mechanisms. Therefore, the major site of sympathetic blood flow control is the arteriole.

What Is the Major Site of Sympathetic Blood Flow Control