Podcast
Questions and Answers
What does the muscle spindle detect?
What does the muscle spindle detect?
- Magnitude of muscle contraction
- Amount of oxygen in the muscle
- Temperature changes in the muscle
- Rate of change at which muscle fibers are stretched (correct)
In the patellar reflex, what is the sequence of events after the patellar tendon is stretched?
In the patellar reflex, what is the sequence of events after the patellar tendon is stretched?
- Ventral motor neuron releases Ach, then tendon stretches
- Impulse travels to brain, then muscle contraction occurs
- Activated muscle spindles excite associated axons, leading to muscle contraction (correct)
- Muscle spindles deactivate, then signal the spinal cord
What is the approximate time it takes for an impulse to travel into the spinal cord during the stretch reflex?
What is the approximate time it takes for an impulse to travel into the spinal cord during the stretch reflex?
- 1 second
- 10 milliseconds
- 1 millisecond (correct)
- 1 microsecond
Why do reflex responses often appear complex?
Why do reflex responses often appear complex?
What happens when perturbation of one arm occurs during a task involving the contralateral limb?
What happens when perturbation of one arm occurs during a task involving the contralateral limb?
What do spinal reflexes involve?
What do spinal reflexes involve?
Which of the following statements best describes how odors are detected in the nose?
Which of the following statements best describes how odors are detected in the nose?
What is meant by the 'signature' of an odorant?
What is meant by the 'signature' of an odorant?
Why do we get cravings for salty foods?
Why do we get cravings for salty foods?
In taste perception, why are bitter and sour tastes often associated with aversive reactions?
In taste perception, why are bitter and sour tastes often associated with aversive reactions?
What is unique about the way taste information is transmitted from taste buds to the cerebral cortex?
What is unique about the way taste information is transmitted from taste buds to the cerebral cortex?
Which part of the body has taste sensors and is described as the fastest healing part?
Which part of the body has taste sensors and is described as the fastest healing part?
