Airway Clearance. Respiratory health depends on consistent clearance of airway secretions. Normal airway clearance is accomplished by two important mechanisms: the mucociliary clearance (MCC) system and the ability to cough. Impaired MCC is linked to poor lung function in a broad range of diseases and disabilities.
The xylem and phloem carry water and nutrients throughout a plant while the veins and arteries carry blood in a body. The xylem and phloem transport things up and down and veins and arteries carry blood to and from the heart.
Vascular plants have conducting, also referred to as vascular or liquefied, tissues that transport water, minerals, and photosynthetic materials throughout the plantâs roots, stems, and leaves. They differ from nonvascular plants, which do not have conducting tissues, and require water for fertilization.