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Questions and Answers
Which gas constitutes the highest percentage in the alveolar air?
Which gas constitutes the highest percentage in the alveolar air?
- Nitrogen (correct)
- Carbon dioxide
- Total gas
- Oxygen
What is the main function of hemoglobin in the blood?
What is the main function of hemoglobin in the blood?
- To transport carbon dioxide
- To increase blood pH
- To carry oxygen (correct)
- To regulate respiratory rate
What is the main source of energy for muscle contraction?
What is the main source of energy for muscle contraction?
- Calcium
- Glucose
- Lactic acid
- ATP (correct)
Which theory explains Delayed Onset Muscle Soreness (DOMS) as a result of microscopic damage to muscle fibers?
Which theory explains Delayed Onset Muscle Soreness (DOMS) as a result of microscopic damage to muscle fibers?
What is the functional unit of a skeletal muscle fiber?
What is the functional unit of a skeletal muscle fiber?
Which nervous system division is responsible for 'rest and digest' functions?
Which nervous system division is responsible for 'rest and digest' functions?
What is the primary function of sensory or afferent neurons?
What is the primary function of sensory or afferent neurons?
What is the term for the junction between a motor neuron and a muscle fiber?
What is the term for the junction between a motor neuron and a muscle fiber?
Which component is responsible for transmitting signals from one neuron to another?
Which component is responsible for transmitting signals from one neuron to another?
What structure in the alveoli facilitates the exchange of gases between air and blood?
What structure in the alveoli facilitates the exchange of gases between air and blood?
What is the term for the volume of blood ejected by the heart in one contraction?
What is the term for the volume of blood ejected by the heart in one contraction?
Which term refers to the maximum volume of blood that the ventricle can hold during diastole?
Which term refers to the maximum volume of blood that the ventricle can hold during diastole?
What is the pressure exerted by blood against the walls of arteries during ventricular contraction called?
What is the pressure exerted by blood against the walls of arteries during ventricular contraction called?
Which term refers to the period of relaxation and filling of the heart chambers?
Which term refers to the period of relaxation and filling of the heart chambers?
What is the term for the amount of blood ejected from the left ventricle in one contraction?
What is the term for the amount of blood ejected from the left ventricle in one contraction?
Which term refers to the maximum amount of oxygen that an individual can utilize during intense exercise?
Which term refers to the maximum amount of oxygen that an individual can utilize during intense exercise?
What is the term for the process by which blood is distributed to various body tissues based on their metabolic needs?
What is the term for the process by which blood is distributed to various body tissues based on their metabolic needs?
Which term refers to the volume of blood pumped by either ventricle of the heart per minute?
Which term refers to the volume of blood pumped by either ventricle of the heart per minute?
The Frank-Starling mechanism is related to the relationship between which two cardiovascular parameters?
The Frank-Starling mechanism is related to the relationship between which two cardiovascular parameters?
Which term refers to the process by which oxygen moves from the air into the blood and carbon dioxide moves from the blood into the air in the lungs?
Which term refers to the process by which oxygen moves from the air into the blood and carbon dioxide moves from the blood into the air in the lungs?
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