The expansion and contraction of the arterial walls is the pulse.
The arteries in the neck are very large (to supply blood to the brain), and fairly close to the surface because of all the other stuff in the neck (muscles, spine, trachea, esophagus). So the ebb and flow of blood as your heart pumps can be visible on the surface of the skin.
There is no such thing as an arterial vein. You either have an artery, or a vein. Arteries move blood away from the heart, and veins move blood to the heart. Also, arteries carry blood that contains oxygen to the various parts of the body, whereas veins carry blood that needs oxygen to the heart and lungs.
coronary arteries.
Thermal energy from the sun causes cracks in the road through a process called thermal expansion and contraction. When the road surface heats up, it expands, and when it cools down, it contracts. This repeated expansion and contraction over time can lead to cracks forming.
Coronary arteries
popliteal arteries (a portion of the femoral arteries near the surface of the legs)
doctors typically draw blood from veins because veins are more superficial (ie close to the surface of the skin) and therefore more easily accessible. additionally, arteries are under high pressure and there is a risk of major bleeding. lastly, you have less collateral circulation with arteries than veins. what that means is this (let's use your arm as an example): there are many different veins in your forearm that lets blood get from your hand back to your heart, so damaging any one of these veins isn't a big deal. however, there are only two arteries in your forearm that supplies blood to your hand (the radial and ulnar arteries). Arterial blood is sampled from the radial artery because it's bigger and more easily accessible. However, damaging this artery can be catastrophic if the ulnar artery is not well developed, because then your hand is not getting enough blood, and it can become gangrenous and die (this is a vascular emergency). That is why doctors will do an Allen's test (look it up on google... you can even try it on yourself) before doing an arterial stick to make sure you have good blood flow through your ulnar artery that can sustain your hand in case the radial artery is destroyed with the arterial stick. so for these reasons, doctors don't do an arterial blood draw unless they really need one, and the one test that comes to mind where you absolutely need arterial blood is the arterial blood gas test. this test is used when doctors need to know the oxygen saturation and pH of the arterial blood, typically in patients with respiratory failure and sometimes in type 1 diabetics with diabetic ketoacidosis (DKA).
false
Arteries that are relatively large and near the surface can be used as pulse sites.
Blood is typically taken from veins instead of arteries because veins are closer to the surface of the skin and are easier to access. Veins also have lower pressure compared to arteries, making it safer and less painful to draw blood from them. Additionally, veins are less likely to spurt or cause excessive bleeding when punctured.
A conductor having low resistance in parallel with another device to divert a fraction of the current. It is sometimes called a Resistor. The causative diversion of venous blood into oxygenated arterial blood and thus mixing is also a shunt. "shunting"
Oxygenated blood is brought to the myocardium by coronary arteries. These arteries are located all around he surface of the heart.