NWHSU Histo 2 Circulatory System Questions And Answers
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NWHSU
Institution
NWHSU
NWHSU Histo 2 Circulatory System
Questions And Answers
What structure of the vascular wall contains the external elastic lamina (EEL)? Tunica
Adventitia
What structure of the vascular wall contains ONLY smooth muscle, elastin and collegen
Tunica media
Put the arterial system in order from ...
NWHSU Histo 2 Circulatory System
Questions And Answers
What structure of the vascular wall contains the external elastic lamina (EEL)? Tunica
Adventitia
What structure of the vascular wall contains ONLY smooth muscle, elastin and collegen
Tunica media
Put the arterial system in order from smallest to largest
Medium (muscle)
Small Artery
Large Artery (Elastic)
Arteriole Arteriole<Small<Muscle< Elastic
Put the venous system in order from smallest to largest
Medium
Large
, NWHSU Histo 2 Circulatory System
Questions And Answers
Small
Venule Venule<Small<Medium<Large
Arteries and veins always run side by side in close proximity in size except what artery and vein?
Large artery and large vein
What is the function of the arterial system? Distribute blood from the heart to capillary
beds
The flow of blood in the arterial system is regulated by the changing in the ________ of the
distributing vessels Diameter
In the arterial system, the flow of blood is controlled by which part of the autonomic nervous
system? Which adrenal medulla hormones? Sympathetic; Epinephrine and
Norepinephrine
Which arteries are the conducting arteries? (major distribution vessels) Elastic arteries
, NWHSU Histo 2 Circulatory System
Questions And Answers
Which arteries are the distributing arteries? Muscular
Which arteries are the terminal branches that supply the capillary beds Arterioles
Which arteries are the resistance vessels? Small and arteriole
What are the function of the resistance vessels? Decrease blood pressure before reaching
capillary network
If the caliber of the artery increases, what happens? Increase in amount of elastic fibers
If the caliber of the artery decreases, what happens? Smooth muscle component increase
How is elastic artery made up? Concentric fenestrated sheets of elastin, separated by
collagenous tissue and smooth muscle fibers
Do elastic arteries have IEL or EEL, both or neither? neither
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