Didn't feel cough cough cough how to return a responsibility

summary

Cough is a kind of sudden and explosive respiratory movement, which helps to clear the secretion in the respiratory tract. Therefore, the essence of cough is a kind of protective reflex. Now let's learn how to cough without feeling.

Didn't feel cough cough cough how to return a responsibility

First, the sensory nerve endings causing cough were mainly distributed in the trachea and bronchial mucosa between the pharynx and the second trachea. Others include pharynx, lung tissue, pleura and even external auditory canal. The nerve endings distributed in the upper respiratory tract are sensitive to foreign bodies, so they belong to mechanical receptors; the nerve endings distributed in the smaller airway are sensitive to chemicals, so they belong to chemical receptors.

Second: the nerve conduction pathway that causes cough: the stimulation source vagus nerve, glossopharyngeal nerve, trigeminal nerve and other cough centers that enter the medulla oblongata after excitation pass down through hypoglossal nerve, phrenic nerve, and spinal nerve, in which the recurrent laryngeal nerve causes glottic closure, phrenic nerve and spinal nerve cause diaphragm and other respiratory muscles contraction, and produce intrapulmonary hypertension, and cooperate with each other to cause cough I'm a student.

Third: the classic process of cough: inhalation - glottis closed - rapid and strong contraction of the ventilator to produce intrapulmonary pressure - glottis suddenly opened - gas quickly burst out from the airway. Through this process, the material in the airway can be taken out.

matters needing attention

Cough is how to return a responsibility all the time, notice not to eat stimulant food, alcohol and tobacco, eat fresh fruit, vegetable more, drink water more, avoid acrid stimulant food.