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DVT398AF1
USIDMS Extracranial Carotid
| Question | Answer |
|---|---|
| What are the principal arteries supplying the head and neck? | The right and left common carotid arteries |
| What is the purpose of valves in the veins? | Prevent the retrograde movement of blood |
| What is the first and largest branch off of the aortic arch? | The brachiocephalic artery |
| What are the highest and lowest pressure areas in the venous system? | Highest-left ventricle Lowest-right atrium |
| Name some high-resistance vessels. | External carotid, subclavian, distal aorta, iliac, superior mesenteric |
| What is most important regarding energy loss in a vessel according to Poiseuille's law? | The radius of a stenosis |
| When standing, what is the hydrostatic pressure at the heart? | 0 mmHg |
| During pregnancy, what can be compressed while lying supine? | The inferior vena cava and the iliac veins |
| How long can a TIA last, but not exceed? | 24 hours |
| What percent of the normal CCA flow volume passes through the ICA? | 70% |