Heavy Breathing Hemoglobin Straight to the Heart The blood flows like wine Slide into your sarcomeres
100
Dead Space
Air which is inhaled but does not engage in alveolar gas exchange goes here
100
Iron
What dietary mineral is particularly important for functioning hemoglobin?
100
100 beats / minute
Without any external contribution, what would the heart rate be?
100
Arterioles
What blood vessels provide the greatest control of blood pressure?
100
Isotonic
What type of muscle contraction involves a constant external resistance?
200
(Functional) Vital Capacity
The total volume of air with maximal inhalation and exhalation
200
4
How many oxygen molecules can a single hemoglobin bind?
200
Ejection Fraction
What volume is often used to help diagnose heart failure?
200
5-10%
About what percentage of blood goes to the internal organs during strenuous exercise?
200
Type I
What type of muscle fiber has the highest oxidative capacity?
300
CO2
The primary driver of increase in ventilation with exercise
300
Lungs/pulmonary capillaries
Where does H+ dissociate from hemoglobin to form carbonic acid?
300
Purkinje Fibers
What structure delivers the electrical impulse to the ventricles?
300
Plasma
What portion of blood is responsible for the change in volume with exercise?
300
Sarcoplasmic reticulum
Where does calcium come from to facilitate exposed actin?
400
Aortic arch and carotid
The main location(s) of peripheral chemoreceptors for ventilation regulation
400
Glycolysis
An enzyme from what metabolic process will decrease the hemoglobin affinity for O2?
400
L/min
What is the UNITS of cardiac output?
400
Frank-Starling Mechanism
What is the name of the mechanism by which end diastolic volume contributes to a larger stronger ventricular contraction?
400
Releases from actin
What does the myosin head do when ATP binds to it?
500
Increase
Breathing in pure oxygen will have what effect on PO2 in blood?
500
Hemoglobin
A decreased level of what molecule will impair oxygen carrying capability with intense aerobic exercise?
500
PR Interval
What is the EKG portion that occurs when blood flows into the ventricles?
500
NO/ Nitric oxide
What chemical/hormone do muscles indirectly upregulate to promote local vasodilation?
500
Active insufficiency
What is it called when the muscle exhibits suboptimal performed in an extremely shortened position?






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