Cough, sneezing and swallowing reflexes

Cough, sneezing and swallowing reflexes

Introduction These are collectively called respiratory protective reflexes. Protects lungs and air passage from foreign particles. These reflexes modify respiratory process so that elimination of foreign particles occurs. Thus, foreign particles cannot enter into the respiratory tract. Are involuntary in nature and occurs instantaneously in response to stimulus. A) Cough reflex One of the modified respiratory … Read more

Types of nerve fibres

Nerves are the communication lines for transmitting impulses from one part of the body to another. They are elongated, slender, thread-like structures arising from the brain and spinal cord. They vary in length i.e. from 0.1 mm to several metres. In certain cases they may be almost equal to the body length. They are of … Read more