The patellar or knee-jerk reflex is a classic example of A. the Golgi tendon ref

Question

The patellar or knee-jerk reflex is a classic example of A. the Golgi tendon reflex. B. the withdrawal reflex. C. the stretch reflex. D. the crossed extensor reflex E. reciprocal innervation. The endoneurium A. surrounds nerve cell bodies B. surrounds individual axons and their Schwann cells. C. bundles axons into fascicles D. bundles fascicles into nerves E. surrounds nerve tracts in the spinal cord The brachial plexus supplies nerves that function to contrail which of the following? A. the diaphragm B. intercostal muscles C. muscles of the arm and forearm D. muscles of the lower limb E. abdominal muscles Dermatomal maps are important clinically because they A. can be used to check for motor function. B. locate the position of cranial nerves, C. can be used to help locale nerve damage. D. indicate what muscles are innervated by each spinal nerve. E. can be used to defect cranial nerve damage. Which of the following nerves is a branch of both the cervical plexus and the brachial plexus? A. axillary B. femoral C. phrenic D. sciatic E. splanchnic

Explanation / Answer

Knee jerk reflex is a classic example of stretch reflex because while striking the patellers ligament below patella streches the muscle spindle.

The endoneurium surrounds individual axons and their schawnn cells. It is like covering layer of axons.

The brachial plexus supplies nerves to muscles of arm and forearm.

Dermatomal maps are used to locate nerve damages.

Pherinic is such nerve which joins both, cervical and brachial.

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