A patient with obliterating atherosclerosis underwent sympathectomy of femoral artery in the region of femoral trigone. What type of arterial hyperemia was induced by the operation?

Answer options

1. Metabolic
2. Functional
3. Neurotonic
4. Reactive
5. Neuroparalytic

Explanation

A patient with obliterating atherosclerosis underwent sympathectomy of femoral artery in the region of femoral trigone. What type of arterial hyperemia was induced by the operation?Neuroparalytic arterial hyperemia is caused by damage or blockage of α- adrenoreceptors sympathetic nervous system. As the usual tone of vessels is supplied by the impulses from sympathetic nerves (1-3 impulses for a second) to smooth muscle cells of the vascular wall. It is characterized by reduction or absence (paralysis) of the sympathetic nervous system effect on the walls of the arteries