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.
Your ears are not just for hearing â they are also important for controlling position sense and balance. Each ear is divided into 3 sections: the outer; middle; and inner ear. The middle and inner parts of the ear are located in hollow cavities on either side of the head within the temporal bones of the skull. The outer ear. The external part of your ear consists of the pinna and ear lobe. The pinna is the shell-like part of your external ear, and is made of cartilage and skin. It directs sound waves from the outside into your external auditory canal (ear canal), which in turn channels sound waves to the tympanic membrane (also known as the ear drum). The tympanic membrane is a thin, semi-transparent membrane that separates the outer and middle ear.