Aerobic respiration
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.
Treppe is also called:
tetanus.
electromyography.
wave summation.
staircase phenomenon.
The ion necessary for cross-bridging is:
iron.
sodium.
potassium.
calcium.
The degree of a muscle’s strength is influenced by many factors, including its metabolic condition and number of motor units recruited.
Which of the following is also known as striated muscle?
smooth muscle
skeletal muscle
involuntary muscle
visceral muscle
The striations seen in skeletal muscle cells under the microscope are what part of the sarcomere?
Z-lines
A-bands
I-bands
All of the above
For continued, efficient nutrient catabolism by muscle fibers, both glucose and oxygen are required
The ability of muscle cells to respond to nerve stimulus is called:
irritability.
contractility.
extensibility.
elasticity.
Recruitment is the term used to describe the addition of more motor units to allow a muscle to increase its strength of contraction.
The neurotransmitter(s) secreted at the motor end-plates of skeletal muscles is/are
dopamine.
norepinephrine.
acetylcholine.
could be any of the above.
Hemoglobin carries oxygen in the red blood cell and myoglobin stores oxygen in the muscle fiber.
Muscles contract more forcefully after they have contracted a few times.
A tetanic contraction is stimulated by a single stimulus
