Blood Vessels
The reason capillary walls are one cell thick
What is rapid diffusion
Arteries, arterioles, veins, venules, and capillaries all have this tunica/layer and is composed of ____tissue
What is the inner tunica/layer and endothelial
This heart chamber pumps blood to lungs?
What is right ventricle
These are the pumping factors in venous circulation
What are skeletal muscle pump, respiratory pump and venous valves
This is the location of internal respiration
What is Systemic capillaries & tissues
This artery basically runs under the clavicle
What is the subclavian artery
This is the main function of the tunica externa/external layer
What is protection and stabilization of the vessel.
These vessels carry oxygenated blood from lungs to the heart
What are the Pulmonary veins
(from each lung!) to the Left Atria!
Veins receive blood from these smaller vessels
What are venules
This is the gas that diffuses into the tissues
What is Oxygen
This is the major superficial and longest leg vein
What is the Great saphenous vein
The reason capillary walls one cell thick
What is rapid diffusion
This is the Systemic pathway sequence
What is Left ventricle → aorta → body → veins → inferior and superior vena cava to R atrium
(aorta to arteries to arterioles to capillaries to venules to veins to superior and inferior vena cavae)
This is the main reason the body routes nutrient‑rich blood to the liver before it joins general circulation?
What is to allow the liver to process nutrients and remove toxins.
This is the reason CO₂ enter blood
What is--it's produced by cell metabolism
This is the name of the final section of the aorta, and it supplies
What is the abdominal aorta; it supplies major abdominal organs and lower limbs.
This is why arterioles called the “resistance vessels”
What is because their smooth muscle can constrict or dilate to change resistance and blood pressure.
This is the Pulmonary pathway sequence
What is R Ventricle → pulmonary (trunk) arteries → both lungs → pulmonary veins → L Atrium
These organs send blood to the liver through the hepatic portal vein
What are the stomach, intestines, spleen, and pancreas.
This happens to arteries with age and can cause what effect in blood pressure
What is: arteries stiffen and raise systolic blood pressure
Venous sinuses do not have ____ while anastomoses do not have ________
What are valves and what are capillaries
These determine whether materials enter or leave capillaries
What are concentration and pressure gradients
(pressure gradient = bulk flow, diffusion=concentration gradient)
This is primarily why pulmonary circulation is lower pressure than systemic circulation
What is Short distance to lungs
After the liver processes blood from the hepatic portal vein, this is the vein where the blood drains into next
Waht is the hepatic vein (which then enter the inferior vena cava).
This is a primary reason for increased clot risk with aging
What is venous valve weakenin + slower circulation