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Control and Coordination
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13/10/2021 3:33 pm
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(a) What is spinal cord? What is its main function?
(b) Give the functions of medulla.
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13/10/2021 3:34 pm
(a) Spinal cord is a cylindrical structure which begins in continuation with medulla and extends downwards. Its function is the conduction of nerve impulses to and from the brain and it is concerned with spinal reflex actions.
(b) The medulla controls various involuntary actions such as heart beat, breathing, blood pressure and peristaltic movements of the elementary canal. It is also the controlling centre for reflexes such a swallowing, coughing, sneezing, secretion of saliva and vomiting.