Cardiovascular System Lecture Exam
4(8
The heart propels blood to and from most body tissues via TWO basic types of BLOOD VESSELS:
- ANSWERSArteries, Veins
_______ are blood vessels that carry blood AWAY from the heart - ANSWERSArteries
______ are blood vessels that carry blood BACK to the heart - ANSWERSVeins
3 classes of blood vessels: - ANSWERS1. Capillaries
2. Arteries
3. Veins
ARTERIES become progressively ______ as they branch and finally result in ________ -
ANSWERSsmaller, capillaries
VEINS become progressively _____ as they merge and are closer to the heart - ANSWERSlarger
Both ARTERY and VEIN WALLS have 3 layers, called _____ - ANSWERSTunics
From outer to inner: - ANSWERS1. 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) - ANSWERSblood vessel,
vasa vasorum
TUNICA MEDIA:
1. Comprised of _____ arranged SMOOTH muscle
2. Responsible for _____ and ____ - ANSWERScircularly,
vasoconstriction, vasodilation
SYMPATHETIC input = ____________ - ANSWERSVasoconstriction
PARASYMPATHETIC input = _______ - ANSWERSVasodilation
TUNICA INTIMA:
1. Composed of ______ and a layer of ____ _____ - ANSWERSEndothelium, connective tissue
Blood flow through the heart is _________ because of ____ valves within the heart -
ANSWERSUnidirectional, 4
The heart is functionally 2 _____________ _____ that work at the SAME rate and pump the
SAME VOLUME of blood - ANSWERSside-by-side pumps
The RIGHT-SIDE pump directs blood to the ______ - ANSWERSlungs
The LEFT-SIDE pump directs blood to the _____ ____ - ANSWERSbody tissues
4(8
The heart propels blood to and from most body tissues via TWO basic types of BLOOD VESSELS:
- ANSWERSArteries, Veins
_______ are blood vessels that carry blood AWAY from the heart - ANSWERSArteries
______ are blood vessels that carry blood BACK to the heart - ANSWERSVeins
3 classes of blood vessels: - ANSWERS1. Capillaries
2. Arteries
3. Veins
ARTERIES become progressively ______ as they branch and finally result in ________ -
ANSWERSsmaller, capillaries
VEINS become progressively _____ as they merge and are closer to the heart - ANSWERSlarger
Both ARTERY and VEIN WALLS have 3 layers, called _____ - ANSWERSTunics
From outer to inner: - ANSWERS1. 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) - ANSWERSblood vessel,
vasa vasorum
TUNICA MEDIA:
1. Comprised of _____ arranged SMOOTH muscle
2. Responsible for _____ and ____ - ANSWERScircularly,
vasoconstriction, vasodilation
SYMPATHETIC input = ____________ - ANSWERSVasoconstriction
PARASYMPATHETIC input = _______ - ANSWERSVasodilation
TUNICA INTIMA:
1. Composed of ______ and a layer of ____ _____ - ANSWERSEndothelium, connective tissue
Blood flow through the heart is _________ because of ____ valves within the heart -
ANSWERSUnidirectional, 4
The heart is functionally 2 _____________ _____ that work at the SAME rate and pump the
SAME VOLUME of blood - ANSWERSside-by-side pumps
The RIGHT-SIDE pump directs blood to the ______ - ANSWERSlungs
The LEFT-SIDE pump directs blood to the _____ ____ - ANSWERSbody tissues
