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.
They include cancers of the larynx (voice box), throat, lips, mouth, nose, and salivary glands. Most types of head and neck cancer begin in squamous cells that line the moist surfaces inside the head and neck (for example, the mouth, nose, and throat).o get the right information about treatment and prognosis, you need to know exactly what type of head and neck cancer you have and what stage it is. The Head and Neck Cancers fact sheet has additional basic information. Head and neck cancers are cancers that start in the tissues and organs of the head and neck.