Anatomy Chapter 11 (part three)
The path of blood flow within the systemic vascular system is ________.
arteries, arterioles, capillary beds, venules, veins
T or F? Arteries branch into smaller vessels known as arterioles.
True
T or F? Exchanges between blood and tissue cells occur in capillary beds.
True.
The largest artery in the body is the ________.
aorta
Which type of vessel has a thick tunica media?
artery
Which type of vessel is constructed only from tunica intima?
capillaries
The flow of blood through a capillary bed is called ________.
microcirculation
Veins ________.
often have valves to prevent the backflow of blood
Arteries are normally depicted as red while veins are colored blue. The exceptions to this rule are the ________ arteries and veins.
pulmonary
T or F? Capillaries are composed only of tunica intima.
true
T or F? When precapillary sphincters are closed, blood flows through the shunts and bypasses the tissue cells.
true...
The correct sequence of layers of a typical blood vessel, from superficial to deep, are ________.
tunica externa, tunica media, tunica intima
Which of these layers is found in capillary walls?
tunica intima
Large veins have ________ to prevent the backflow of blood.
valves
Capillary beds are drained by vessels known as ________.
venules
What is the effect of parasympathetic nervous system control on the vascular system?
little to no effect
Tunica ________, the middle layer of a typical blood vessel, contains smooth muscle and elastic fibers.
media