Exam 13: Integrative Physiology I: Control of Body Movement

Diagram and label the knee jerk reflex.What is the physiological function of this reflex? Explain how this reflex may be important during walking,if you didn't notice a dip in the sidewalk and stepped into it.What is the role of reciprocal inhibition? How would the reflex be affected if reciprocal inhibition failed? Describe the effects on the reflex of severing each structure involved in the reflex,considering one structure at a time.Describe the effects of damaging the opposite side of the spinal cord,or areas higher or lower on the spinal cord.

Autonomic reflexes are also called ________ reflexes.

It is the middle of winter and you walk over an icy patch and lose your balance.As you begin to fall,you react by extending your arms to catch yourself.In this instance,what type of reflex is occurring?

Match the structure to its description. -maintain muscle tone at rest through tonic activity

What are the three levels of nervous system that control movement? Briefly describe their roles.

The collection of pathways controlling a single joint is known as ________.The simplest reflex in this collection of pathways is the ________,which involves only two neurons: ________ neuron from the ________ and the ________ neuron to the muscle.

Muscle spindles are ________ receptors and cause reflex ________,whereas Golgi tendon organs respond primarily to ________ and cause a ________ reflex.

________ monitor the position of skeletal muscles and joints.

A muscle at rest exerts no tension.Is this statement Explain your answer.