All gas exchange between the vascular system and tissues occurs in_________
capillaries
Contraction of the rectus abdominis muscles would result in
Active expiration
Body's thermostat is located in?
preoptic-anterior hypothalamus.
Delayed onset of muscle soreness is likely due to what?
microscopic tears in the muscle resulting in calcium release from the sarcoplasmic reticulum.
What is the best explanation for why ETAP occurs?
irritation of the parietal peritoneum.
What is the maxHR or Karbonen formula?
HR max = 220 - age.
Most important muscle during insipiration is?
Diaphragm
This is the most abundant and effective sweat gland?
Eccrine
This term refers to the fact that an organ system (e.g., cardiovascular) or tissue (e.g., skeletal muscle) must be exercised at a level beyond which it is accustomed to achieving training adaptation.
Overload
Name one way to ensure adequate hydration.
- monitor fluid loses during exercise.
- consume fluids (after exercise) equal to approximately 150% weight loss.
- consume fluids every 15-20 minutes during exercise.
What is the normal pacemaker of the heart?
sinoatrial node
Carbon dioxide is transported in arterial blood principally as?
Bicarbonate
This is the primary source of heat production during exercise.
contracting skeletal muscles.
HIIT training is advantageous for which of the following reasons?
Both training sessions are time-efficient and workout variation options are plentiful are correct
Exercise-induced asthma can impair pulmonary gas exchange by
increasing airway resistance and reducing ventilation to the lung.
The cardiovascular control center is located here.
medulla oblongata
The gas that reaches the gas-exchange zone of the lung is termed
alveolar ventilation.
Which type is the principal means of heat loss at rest in a cool indoor environment?
Radiation
Endurance training has been shown to reduce the oxygen deficit in subjects performing a bout of submaximal exercise. This is likely due to
increases in the number of mitochondria and capillaries.
Moderate or severe COVID-19 can promote both lung injury and impaired gas exchange in patients. This impaired gas exchange likely occurs due to what?
A collection of fluid inside and outside the alveolus and the formation of scar tissue
Most of the oxygen contained in the blood is what?
bound to hemoglobin as oxyhemoglobin.
The respiratory control center is located within the what?
medulla oblongata
Humans and other animals that maintain a rather constant body core temperature are called what?
Hemotherms
High responders to endurance exercise training (i.e., individuals that achieve large increases in VO2max) can achieve up to _________ % improvement in VO2max following a prolonged and intense training program.
50%
When considering exercises of different durations (e.g., short duration to very long duration) performed maximally, activities that rely primarily on the _________ energy system fatigue first, while activities that rely on the _________ energy system fatigue last.
ATP-PC, aerobic