People with myasthenia gravis have a deficiency of
A. sarcomeres.
B. troponin molecules.
C. acetylcholine receptors
D. titin molecules.
Answer: C
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Sensory neurons that are part of the stretch reflex synapse directly onto the motor neurons of antagonist muscles, and inhibit them.
Answer the following statement true (T) or false (F)
Some factors that help to stimulate the newborn's first breath are increasing CO2,
decreasing pH, decreasing O2, decreasing body temperature, and mechanical stimulation. Indicate whether the statement is true or false
The watery component of the cytoplasm is called
A) cytosol. B) protoplasm. C) extracellular fluid. D) interstitial fluid. E) matrix.
The shorter a muscle fiber is before the onset of a contraction, the greater the force that can be developed upon the subsequent contraction because the thin filaments are already partially slid inward
Indicate whether the statement is true or false