the blood through the heart and lungs. We end up with nice oxygenated blood right so after the harder, we have to really focus on this systemic circulation right, so the whole point was to pick up oxygen and order to deliver it to our tissues.

In into the systemic circulation

blood travel into to the cells, tissues and organs of our body.

Gonna be that systemic circulation

In terms of the how how does the blood travel from my heart to the tissues 

arteries and arterials

Then we're gonna move into blood exchange materials via capillaries, and finally

How does the blood travel from tissues back to the heart.

That is gonna be the veins and venules

Is blood goat and tissues. We have already answered that, but this is just another way of looking at it right, so we need to one 

How does the blood goes to tussue 

deliver oxygen from the heart 

the rest the body 

The aorta branches 

 travel to the thoracic cavity organs as well as two lower limbs.

E0, my God carotid arteries two subclavian arteries supply blood to our head in our arms, 

and if you actually look at some of the vessel

Down in the lower portion of the thoracic/lower lens. You'll actually start to see other types of important vessels. For example, this is gonna be a stomach/intestines and then here you can see that liver so there is actually a thing called the hepatic portal vein that connects the intestines to the liver, and it's actually what it's doing. Is it taking nutrients right from the intestines the nutrients get digested so we're talking about Glucose sugar right strips of carbohydrates as well as acids that are broken down from proteins so at least different types of nutrients via the hepatic portal transferred to the liver for processing and also for storage li is a big storage site or glucose. That glucose is actually stored if you've taken this while  in on the kidneys, the renal artery into the kidneys and the renal veins, the blood away from the kidneys, so the kidneys are really really important site, and they are going to filter out waste products to Water or electrolytes, too much water or too many electrolytes in your system. The kidneys will actually filter that out and you'll it from the body via urine so that's a whole point of forming urine is to fill out filter out some of that stuff  That isn't here, but I do wanna mention that you learned is that there is also going to be a Shun vessel to the spleen site where you actually filter. You also filter, but instead of filtering out waste products are these small things like water and electrolytes, what your filtering out are pathogens like bacteria, as well as damage red blood cells are white blood cells , so white or red blood cells filtered out in the sleeve so we're thinking about much larger than Right that gets filtered up this week so those are the many reasons why blood needs to go to the tissues and then the one thing that I haven't really written here. Of course blood has to return to the heart in order to exchange that carbon dioxide it's not picked up or oxygen in the pulmonary circuits  so that blood from the circuit is that pressure decreases so that's what is showing so the wax is here, we have pressure on. We are getting farther farther and then returning back to the heart rate, so as the blood leaves the heart and the blood returns to the heart and the furthest aware, probably hilarious  Pressure in the diastolic pressure pressure is corresponding to ventricular cyst so the heart is pumping and then the diastolic pressure is during diastole for the relaxation of the heart that pressure is going to be lower. A normal individual should be around 120 where the diastolic might be around  if you actually have ventricular pressure with the diastolic pressure, what you'll get is something called the arterial pressure, the average the diastolic from the elastic arteries outwards to the capillaries see that the pressure drops a lot and then by the time we're at the cave by the time we're returning to. The heart. Pressure is basically zero very very little pressure by the time we get back to the heart , there are a lot of factors that go into regulating blood flow and blood pressure so this is some of them for example, diameter, total cross-sectional area, average, blood pressure and velocity of blood flow which she can think of of the speed which is flowing so in your handouts right, so what we is the diameter goes from large right in the arteries, small and the capillaries and then will come back and get larger. Once we return to the heart vessel diameter so total cross-sectional area of the arteries or in the capillaries it gets large or high. For now, so average blood pressure we just covered that it's getting lower almost to 0 by the time we whereas it starts and then velocity of blood flow is it looks kind of like muscle diameter so we have high flow high velocity slows capillaries and then speed back up a little bit Velocity of capillary area, the point of that is to slow flow in order to exchange e