8725816
Descripción
Test por Alexandra Bozan, actualizado hace más de 1 año
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Creado por Alexandra Bozan
hace más de 7 años
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Pregunta 1
Pregunta
Aerobic respiration
Respuesta
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allows the body to avoid the use of oxygen for a short time.
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results in the formation of an incompletely catabolized molecule.
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results in the formation of lactic acid.
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produces the maximum amount of energy available from each glucose molecule.
Pregunta 2
Pregunta
Treppe is also called:
Respuesta
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tetanus.
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electromyography.
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wave summation.
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staircase phenomenon.
Pregunta 3
Pregunta
The ion necessary for cross-bridging is:
Respuesta
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iron.
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sodium.
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potassium.
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calcium.
Pregunta 4
Pregunta
The degree of a muscle’s strength is influenced by many factors, including its metabolic condition and number of motor units recruited.
Respuesta
- True
- False
Pregunta 5
Pregunta
Which of the following is also known as striated muscle?
Respuesta
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smooth muscle
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skeletal muscle
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involuntary muscle
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visceral muscle
Pregunta 6
Pregunta
The striations seen in skeletal muscle cells under the microscope are what part of the sarcomere?
Respuesta
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Z-lines
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A-bands
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I-bands
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All of the above
Pregunta 7
Pregunta
For continued, efficient nutrient catabolism by muscle fibers, both glucose and oxygen are required
Respuesta
- True
- False
Pregunta 8
Pregunta
The ability of muscle cells to respond to nerve stimulus is called:
Respuesta
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irritability.
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contractility.
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extensibility.
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elasticity.
Pregunta 9
Pregunta
Recruitment is the term used to describe the addition of more motor units to allow a muscle to increase its strength of contraction.
Respuesta
- True
- False
Pregunta 10
Pregunta
The neurotransmitter(s) secreted at the motor end-plates of skeletal muscles is/are
Respuesta
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dopamine.
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norepinephrine.
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acetylcholine.
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could be any of the above.
Pregunta 11
Pregunta
Hemoglobin carries oxygen in the red blood cell and myoglobin stores oxygen in the muscle fiber.
Respuesta
- True
- False
Pregunta 12
Pregunta
Muscles contract more forcefully after they have contracted a few times.
Respuesta
- True
- False
Pregunta 13
Pregunta
A tetanic contraction is stimulated by a single stimulus
Respuesta
- True
- False
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