What Registered Nurses Do. Registered nurses (RNs) provide and coordinate patient care, educate patients and the public about various health conditions, and provide advice and emotional support to patients and their family members. Registered nurses work in hospitals, physiciansâ offices, home healthcare services, and nursing care facilities.
The basic function of the outer ear or pinna is to protect the eardrum (tympanic membrane). The outer ear also functions to collect sound waves to the eardrum through the ear canal. The second component of the external ear is the auditory ear canal or meatus.
The anatomy of the ear can be a little confusing, especially since the ear is responsible not only for hearing, but also for balance. There are three components to the ear: the outer ear, the middle ear and the inner ear. All three are involved in hearing but only the inner ear is responsible for balance.The outer ear is composed of the pinna, or ear lobe, and the external auditory canal.Both structures funnel sound waves towards the ear drum or tympanic membrane allowing it to vibrate. The pinna is also responsible for protecting the ear drum from damage. Modified sweat glands in the ear canal form ear wax.he anatomy of the ear can be a little confusing, especially since the ear is responsible not only for hearing, but also for balance. There are three components to the ear: the outer ear, the middle ear and the inner ear. All three are involved in hearing but only the inner ear is responsible for balance.