Podcast
Questions and Answers
What is the main component of the stretch reflex?
What is the main component of the stretch reflex?
- Stimulus
- Efferent
- Center
- Receptor (correct)
Which type of intrafusal fibers has a central area dilated with an aggregation of nuclei?
Which type of intrafusal fibers has a central area dilated with an aggregation of nuclei?
- Nuclear chain fibers
- Muscle spindle fibers
- Nuclear bag fibers (correct)
- Extrafusal fibers
What is the effector organ in the stretch reflex?
What is the effector organ in the stretch reflex?
- Receptor
- Muscle spindle
- Motor nerve
- Skeletal muscle (correct)
Which type of afferent fibers encircle both nuclear bag and nuclear chain?
Which type of afferent fibers encircle both nuclear bag and nuclear chain?
What is the function of the secondary (flower-spray) endings in the muscle spindle?
What is the function of the secondary (flower-spray) endings in the muscle spindle?
Which type of fibers are smaller than nuclear bag fibers and have one line of nuclei spread in a chain along the receptor area?
Which type of fibers are smaller than nuclear bag fibers and have one line of nuclei spread in a chain along the receptor area?
What is the role of the central non-contractile area in the intrafusal fiber?
What is the role of the central non-contractile area in the intrafusal fiber?
Which component of the stretch reflex consists of anterior horn cells (AHCs)?
Which component of the stretch reflex consists of anterior horn cells (AHCs)?
Which type of fiber is smaller than extrafusal fibers and lies in parallel with muscle fibers?
Which type of fiber is smaller than extrafusal fibers and lies in parallel with muscle fibers?
What is the function of primary (annulo spiral) endings in the muscle spindle?
What is the function of primary (annulo spiral) endings in the muscle spindle?
