mass nountechnical. 1The flowing out of a substance or particle. âthe same active efflux of sodium from the cytoplasm to the external mediumâ. âThe scary aspect of this is that calcium ion efflux occurs at intensities and field strengths that are extremely low.â. âLater, the efflux of solutes from chloroplasts was measured.â.
Head and neck cancer includes cancers of the mouth, nose, sinuses, salivary glands, throat, and lymph nodes in the neck. Most begin in the moist tissues that line the mouth, nose and throat. Using tobacco or alcohol increases your risk. In fact, 85 percent of head and neck cancers are linked to tobacco use, including smoking and smokeless tobacco.
Head and neck cancers can also begin in the salivary glands, but salivary gland cancers are relatively uncommon. Salivary glands contain many different types of cells that can become cancerous, so there are many different types of salivary gland cancer.obacco and alcohol use are not risk factors for salivary gland cancers. Infection with cancer-causing types of human papillomavirus (HPV), especially HPV-16, is a risk factor for some types of head and neck cancers, particularly oropharyngeal cancers that involve the tonsils or the base of the tongue (9 â 11).