Reflexes and Movements
The motor cortex and cerebellum play the lead in coordinating movements.
Three main types of reflex activity are tested: an increase in the speed and strength of the reflex response, a decrease in response, and the presence of abnormal reflexes. Using a tendon hammer, the examiner taps a suitable tendon with the patient relaxed and observes the response-usually a single brief, brisk contraction of the appropriate muscle.
Response is normally enhanced if muscles contract elsewhere in the body. When an upper motor neuron lesion is present, the response is excessive and the muscle may contract repeatedly.
Reflex and movements are determined by the changes happening in our surrounding.
In this illustration, the ear is heard a sound wave and the message is conveyed to the brain at a very high speed.
In this illustration, the hand is touching a heated object and the message is conveyed to the brain at a very high speed.
My Other Articles
Introduction To Human Body Systems
Liked it
awesome11 | Nov 7, 2010 | Reply
great share! thanks!
J Anderson | Nov 7, 2010 | Reply
Nice Post. Keep it up.
albert1jemi | Nov 7, 2010 | Reply
great share
Kristie Claar | Oct 15, 2011 | Reply
great article