which has larger lumen (opening for blood flow):an artery, or a vein?

What vessel branches off the aorta and brings blood into the kidneys? What vessel returns filtered blood to the inferior vena cava? Label the kidney

The arm contains arteries, veins and capillaries. Why blood is taken from the vein to perform routine blood tests, rather than an artery or a capillary?

trace the flow of blood from the right side of the neck to the left side of the neck

Why is it important to not leave an inflated blood pressure cuff on the arm for too long?  Think: What are you doing to blood flow to the distal arm when you inflate the cuff?

axillary artery (I. & r.) (AK-sil-är-ē) (Supplies muscles of right pectoral region and axilla.) brachial artery (I. & r.) (BRÃ-kē-al) (Supplies structures of the arm. This artery is commonly used to measure a person's blood pressure.) radial artery (l. & r.) (RÃ-de-al) (Supplies radial side of forearm.) ulnar artery (I. & r.) (UHL-nar) (Supplies ulnar side of forearm.)

What is the path of the superficial veins of the arm as they run through the arm and merge with deep vessels?

which of these has the thinnest wall: artery, capillary, vein?

Which vein drains the blood from the intestine to the liver?

How would damage to the left bundle branch affect blood flow in the systemic circulation?