Salsa de Molcajete. Salsa de Molcajete refers to a salsa that is ground by hand in a molcajete, Mexico's version of the mortar and pestle. Nearly all salsas used to be prepared this way, but now many cooks use blenders and food processors. Because of this, even in Mexico the term evokes nostalgia for the handmade quality of bygone days.
Overview. The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat (pharynx), and voice box (larynx). The respiratory system is lined with a mucous membrane that secretes mucus.
The respiratory system provides oxygen to the cells. Without oxygen your cells couldn't move, reproduce or turn food into energy, and of course we would die. The upper part of the system-mouth, nose, sinus, larynx and trachea-help filter, humidify and warm the air as it enters the body.The cilia in the lining of the air passages, and the mucus, protect the lungs from dirt and dust. The air goes through the lungs' bronchi and bronchioles into the alveoli.he upper part of the system-mouth, nose, sinus, larynx and trachea-help filter, humidify and warm the air as it enters the body. The cilia in the lining of the air passages, and the mucus, protect the lungs from dirt and dust.