Cardiovascular System Exam Test — Anatomy &
Physiology — Practice Questions and Study
Guide
The heart propels blood to and from most body tissues via TWO
basic types of BLOOD VESSELS: - Correct answer- Arteries, Veins
_______ are blood vessels that carry blood AWAY from the heart -
Correct answer- Arteries
______ are blood vessels that carry blood BACK to the heart -
Correct answer- Veins
3 classes of blood vessels: - Correct answer- 1. Capillaries
2. Arteries
3. Veins
ARTERIES become progressively ______ as they branch and finally
result in ________ - Correct answer- smaller, capillaries
VEINS become progressively _____ as they merge and are closer to
the heart - Correct answer- larger
Both ARTERY and VEIN WALLS have 3 layers, called _____ -
Correct answer- Tunics
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From outer to inner: - Correct answer- 1. Tunica externa
(Adventitia)
2. Tunica media
3. Tunica intima (Interna)
TUNICA EXTERNA:
1. CT that helps anchor the ____ ____ to an organ
2. Larger blood vessels contain ____ ____ (Blood supply) - Correct
answer- blood vessel, vasa vasorum
TUNICA MEDIA:
1. Comprised of _____ arranged SMOOTH muscle
2. Responsible for _____ and ____ - Correct answer- circularly,
vasoconstriction, vasodilation
SYMPATHETIC input = ____________ - Correct answer-
Vasoconstriction
PARASYMPATHETIC input = _______ - Correct answer-
Vasodilation
TUNICA INTIMA:
1. Composed of ______ and a layer of ____ _____ - Correct answer-
Endothelium, connective tissue
Blood flow through the heart is _________ because of ____ valves
within the heart - Correct answer- Unidirectional, 4
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