Muscle spindlesMultiple Choiceare innervated by gamma motor neurons.originate in the spinal cord.are specialized nerve cells.are found encapsulated in nerve endings.are innervated by alpha motor neurons.

Gamma motor neuronsMultiple Choiceare located in tendons.transmit action potentials to skeletal muscle.regulate the sensitivity of the muscle spindle.enable the brain to perceive that a muscle has been stretched.innervate the whole muscle.

Many upper motor neuronsMultiple Choiceare responsible for planning involuntary movements.directly innervate skeletal muscles.are located in the primary motor area.control smooth muscle.have cell bodies in the spinal cord.

Fill in the Blank QuestionFill in the blank question.Because skeletal muscles typically are innervated by motor neurons at more than one level of the spinal cord, they are said to exhibit innervation.

Which of the following is TRUE?  Group of answer choicesGamma motor neurons provide afferent feedback to the spinal cord.Extrafusal fibres are innervated by alpha motor neurons.Alpha motor neurons provide afferent feedback to the CNS.Extrafusal fibres are innervated by gamma motor neurons.

A neuron that innervates skeletal muscle fibers is called a(n) neuron.