- Veins act as a ________________ for blood- 65% of blood is in the venous circulation at any given moment
- _________________ ______________ are rings of smooth muscle found early on in the capillary bed that regulate blood flow into true capillaries
- __________ _________ are predominantly found in the limbs and have a similar structure as the semilunar valves in the heart (two cups)
- Vascular Anastomoses are _____________ or interconnections of blood vessels
- After the aorta ascends, it starts to bend over, creating an apex. This apex is called the ?
- Vesicles that envelop and transport large molecules across the capillary wall are called ?
- _______________ lead into capillaries- smallest
- Veins always _________ blood to the heart
- Arteries usually carry oxygen-______ blood
- Veins have a much thicker tunica ___________ compared to arteries
- Arteries always carry blood _______ from the heart
- Large pores in endothelial cells allowing rapid exchange between blood vessels and tissue are called ?
- The artery has a much thicker tunica _________ compared to the vein
- The capillaries are the ____________ vessel
- To allow for better gas exchange and nutrient diffusion, we want the capillaries to have a ___________ barrier
- Which vessel has a larger lumen size?
- _____________ arteries have a thick tunica media- intermediate
- The space within a tubular part or organ, such as the space within a blood vessel, is called the ?
- In both arteries and veins, there are three layers called ________, which is like a covering or coat
- Blood flows out of the heart through __________ to smaller and smaller arteries until the blood reaches the ______________ of the organs