Quiz: Muscle Contraction

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Quiz: Muscle Contraction
Alexandra Bozan
Quiz por Alexandra Bozan, atualizado more than 1 year ago
Alexandra Bozan
Criado por Alexandra Bozan mais de 7 anos atrás
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Resumo de Recurso

Questão 1

Questão
Aerobic respiration
Responda
  • allows the body to avoid the use of oxygen for a short time.
  • results in the formation of an incompletely catabolized molecule.
  • results in the formation of lactic acid.
  • produces the maximum amount of energy available from each glucose molecule.

Questão 2

Questão
Treppe is also called:
Responda
  • tetanus.
  • electromyography.
  • wave summation.
  • staircase phenomenon.

Questão 3

Questão
The ion necessary for cross-bridging is:
Responda
  • iron.
  • sodium.
  • potassium.
  • calcium.

Questão 4

Questão
The degree of a muscle’s strength is influenced by many factors, including its metabolic condition and number of motor units recruited.
Responda
  • True
  • False

Questão 5

Questão
Which of the following is also known as striated muscle?
Responda
  • smooth muscle
  • skeletal muscle
  • involuntary muscle
  • visceral muscle

Questão 6

Questão
The striations seen in skeletal muscle cells under the microscope are what part of the sarcomere?
Responda
  • Z-lines
  • A-bands
  • I-bands
  • All of the above

Questão 7

Questão
For continued, efficient nutrient catabolism by muscle fibers, both glucose and oxygen are required
Responda
  • True
  • False

Questão 8

Questão
The ability of muscle cells to respond to nerve stimulus is called:
Responda
  • irritability.
  • contractility.
  • extensibility.
  • elasticity.

Questão 9

Questão
Recruitment is the term used to describe the addition of more motor units to allow a muscle to increase its strength of contraction.
Responda
  • True
  • False

Questão 10

Questão
The neurotransmitter(s) secreted at the motor end-plates of skeletal muscles is/are
Responda
  • dopamine.
  • norepinephrine.
  • acetylcholine.
  • could be any of the above.

Questão 11

Questão
Hemoglobin carries oxygen in the red blood cell and myoglobin stores oxygen in the muscle fiber.
Responda
  • True
  • False

Questão 12

Questão
Muscles contract more forcefully after they have contracted a few times.
Responda
  • True
  • False

Questão 13

Questão
A tetanic contraction is stimulated by a single stimulus
Responda
  • True
  • False

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