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Body Composition/Environment
Neuromuscular
Cardiovascular
Pulmonary
Endocrine
100
If someone had a BMI of 21 what classification would they be in (underweight, overweight, normal weight)
Normal weight
100
What is described as "a single alpha motor neuron and all of the muscle fibers it innervates?"
Motor Unit
100
True/False The purkinjie fibers assist in ventricular filling.
False
100
Gas diffusion at the lungs is mainly dependent on:
Pressure difference between air within alveoli and blood
100
What happens to growth hormone levels with exercise?
Increases
200
Air displacement plethysmography is a relatively accurate method that uses ____________ to estimate body composition.
Body Denisty
200
Which athletes are likely to predominantly rely on slow motor units?
Endurance
200
What kind of exercise would result in an increase in SBP and DBP?
Resistance
200
If the diaphragm relaxes and the intrapulmonic pressure increases what will happen?
Expiration
200
What gland is considered to be the master regulator?
Pituitary
300
True/False To overcome the variability in body composition measurements the different methodologies should be used on the same individual over time.
False
300
What is the synapse allowing communication from the nerve terminal of a motor neuron to the muscle fiber it innervates called?
Neuromuscular junction
300
True/False Oxygen dissolves in the blood for transport.
True
300
During the first phase of ventilation, with exercise, what regulates breathing rate?
Neurogenic factors
300
Which gland is responsible for releasing T3 and T4 to increase metabolism?
Thyroid
400
True/False Athletes live and train at high altitude in attempts to improve performance?
True
400
Following aerobic training what happens to mitochondria?
density and activity increase
400
What is the equation for Cardiac Output?
SV * HR
400
What can we measure to estimate fuel utilization (CHO vs fat) during exercise?
RER, VCO2/VO2
400
What are 3 ways that hormones exert their actions on their targets?
Autocrine, paracrine and endocrine
500
Exercising at high altitudes does what to oxygen consumption?
impairs it /decreases
500
What must occur for muscle relaxation? (Think molecularly)
Calcium removal
500
This system is stimulated during exercise to increase heart rate?
SNS
500
With training what will happen to the phases of ventilation?
Reach steady state sooner
500
Which hormone is released from the islets during exercise?
Glucagon