Select the statement that describes recruitment in muscle contraction. Neurotransmitters from the synaptic terminal of a motor n
euron stimulate an action potential in the muscle fiber. The contraction of muscle fibers in one muscle stimulates the contraction of antagonistic muscles in an opposing muscle group. More motor neurons and larger motor units are activated to stimulate a greater number of muscle fibers for a more powerful muscle contraction. A decreasing number of motor neurons are connected to the muscle fiber as a muscle grows and becomes stronger.
The correct answer is - More motor neurons and larger motor units are activated to stimulate a greater number of muscle fibers for a more powerful muscle contraction.
Explanation:
Recruitment in muscle contraction or motor unit recruitment refers to the periodical stimulation or activation of the one or more motor neurons to get the more or enhanced strength in a muscle contraction.
Additional motor neurons or motor units are activated, along with larger motor units to stimulates a higher number of fibers for increased strength of muscle contraction.
Animals don’t need to absorb sunlight in order to live. Only plants have chloroplasts to absorb the rays from the sun which is required for them to live and grow
The average distance is 16,000 km Converging rate is 10 cm/year 1 km = 100,000 cm = 16,000 × 100,000/10 cm/year = 160,000,000 years It will then take 160 Million years to collide.
Elastase is a protease enzyme the function involves the cleavage of peptide bonds after amino acids with small side chains. This is responsible for cleaving the peptide bonds between the elastin fibers and aids in digestion of the elastic protein.
Thus the elastase cleaves the protein fibers this can be said that the elastase is a non-fibrous protein.
