Define motor Unit

question 114

Multiple Choice

Define motor unit.

• A)A motor unit is the sum total of all the motor neurons going to a specific muscle.
• B)A motor unit is the sum total of all the muscle fibers in a whole muscle.
• C)A motor unit is the maximum tension that a whole muscle can generate with maximum stimulation.
• D)A motor unit is a motor neuron and all the muscle fibers that it controls.
• E)A motor unit is the sensory neuron going away from and the motor neuron going to a skeletal muscle.

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Definitions:

Cohesiveness

The characteristic of molecules or particles sticking together in a mass, important in various physical and biological processes.

Ionic Bonds

A chemical bond formed between two ions with opposite charges through the transfer of one or more electrons from one atom to another.

Polar Covalent Bonds

A type of chemical bond where two atoms share a pair of electrons, but the electrons are not shared equally, leading to a distribution of charge.

Water Molecules

Water molecules consist of two hydrogen atoms and one oxygen atom bonded together, making up the liquid that is vital for all forms of life on Earth.