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TAMU Kines 433- EXAM 1 Questions with 100% Correct
Answers UPDATED!!!
Pulmonary Circuit - ANSWER low pressure
provides BF to lungs
Systemic Circuit - ANSWER high pressure
provides BF to all other tissues
Macrocirculation - ANSWER vessels outside of tissues
arteries and veins
provides blood to and from tissues
Microcirculation - ANSWER smaller vessels contained in an
organ or tissue
arterioles, venules, capillaries
regulate BF and BP
regulate exchange of gasses and nutrients
Cardiovascular adjustments to exercise - ANSWER increased CO
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Redistribute CO
Increased Venous return
Cardiac output at rest - ANSWER 5 L/min
Key adaptations of the heart - ANSWER SA node
AV node
Bundle Branches
Purkinje fibers
Features of a pump - ANSWER fatigue resistant
spontaneous
rhythmic
adaptable/regulatable
SA node - ANSWER pacemaker
spontaneous, generates electrical signal
AV node - ANSWER delay station which delays the action
potential to complete ventricular filling
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Bundle Branches - ANSWER transmits signal throughout
ventricles
Purkinje fibers - ANSWER rapid conduction
ventricles contract as a unit
Rhythmic
Fatigue resistant adaptations to the heart - ANSWER arteries
providing BF to myocytes
Capillaries- dense network to aid gas exchange
mitochondria- dense network to provide ATP
Nerves: heart is heavily innervated by the ANS
Reguatory adaptation to the heart - ANSWER the nervous
system innervates the heart at the SA and AV nodes to regulate
HR
*regulated by BOTH the PNS and SNS
The PNS innervates the SA and AV node and releases ______ to
_____ heart rate and conduction velocity - ANSWER Ach
decreases
TAMU Kines 433- EXAM 1 Questions with 100% Correct
Answers UPDATED!!!
Pulmonary Circuit - ANSWER low pressure
provides BF to lungs
Systemic Circuit - ANSWER high pressure
provides BF to all other tissues
Macrocirculation - ANSWER vessels outside of tissues
arteries and veins
provides blood to and from tissues
Microcirculation - ANSWER smaller vessels contained in an
organ or tissue
arterioles, venules, capillaries
regulate BF and BP
regulate exchange of gasses and nutrients
Cardiovascular adjustments to exercise - ANSWER increased CO
,2|Page
Redistribute CO
Increased Venous return
Cardiac output at rest - ANSWER 5 L/min
Key adaptations of the heart - ANSWER SA node
AV node
Bundle Branches
Purkinje fibers
Features of a pump - ANSWER fatigue resistant
spontaneous
rhythmic
adaptable/regulatable
SA node - ANSWER pacemaker
spontaneous, generates electrical signal
AV node - ANSWER delay station which delays the action
potential to complete ventricular filling
, 3|Page
Bundle Branches - ANSWER transmits signal throughout
ventricles
Purkinje fibers - ANSWER rapid conduction
ventricles contract as a unit
Rhythmic
Fatigue resistant adaptations to the heart - ANSWER arteries
providing BF to myocytes
Capillaries- dense network to aid gas exchange
mitochondria- dense network to provide ATP
Nerves: heart is heavily innervated by the ANS
Reguatory adaptation to the heart - ANSWER the nervous
system innervates the heart at the SA and AV nodes to regulate
HR
*regulated by BOTH the PNS and SNS
The PNS innervates the SA and AV node and releases ______ to
_____ heart rate and conduction velocity - ANSWER Ach
decreases
