How is breathing improved if the smoothmuscle of teh bronchialtreerelaxes?
When the smooth muscle of the bronchial tree relaxes the bronchi open or dilate. When the space that the air flows through the movement is less turbulent and therefore more air can flow through. If more air flows into and out of the lungs and the air
Smooth muscle is an involuntary non-striated muscle. It is divided into two sub-groups; the single-unit (unitary) and multiunit smooth muscle. Within single-unit smooth muscle tissues, the autonomic...