Ear, outer

Untitled Document

Art dictionary
Financial dictionary
Hollywood dictionary
Insurance dictionary
Literature dictionary
Real Estate dictionary
Tourism dictionary

Ear, outer

Ear, outer

There are three sections of the ear. They are the outer ear, the middle ear, and the inner ear. The outer ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the visible projecting portion of the ear), the external acoustic meatus (the outside opening to the ear canal), and the external ear canal that leads to the ear drum. In sum, there is the pinna, the meatus and the canal. The outer ear concentrates air vibrations on the ear drum and makes the drum vibrate. The outer ear is also called the external ear.

RELATED TERMS
--------------------------------------

Ear
The hearing organ. There are three sections of the ear, according to the anatomy textbooks. They are the outer ear (the part we see along the sides of our head behind the temples), the middle ear, and the inner ear. But in terms of function, the ear has four parts: those three and the brain. Hearing thus involves all parts of the ear as well as the auditory cortex of the brain. The external ear helps concentrate the vibrations of air on the ear drum and make it vibrate. These vibrations are transmitted by a chain of little bones in the middle ear to the inner ear. There they stimulate the fibers of the auditory nerve to transmit impulses to the brain.

Pinna
The projecting part of the ear; also known as the auricle.

Auricle
"1.The principal projecting part of the ear. Also called the pinna.2. Something ear shaped such as the upper chambers of the heart. Also called the atria.

Acoustic
Having to do with sound and hearing.

Meatus
An opening or passageway in the body, such as the urinary meatus.

SIMILAR TERMS
--------------------------------------

Ear, cauliflower
An acquired deformity of the external ear to which wrestlers and boxers are particularly vulnerable.

Ear, external
There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The external ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the visible projecting portion of the ear), the external acoustic meatus (the outside opening to the ear canal), and the external ear canal that leads to the ear drum. In sum, there is the pinna, the meatus and the canal. And the external ear has only to concentrate air vibrations on the ear drum and make the drum vibrate. The external ear is also called the outer ear.

Ear, foreign object in
A foreign object in the external ear canal. Foreign objects are often placed in the ear by young children or by accident while trying to clean or scratch the ear. There is often an accompanying external ear infection.

Ear, inner
There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The inner ear is far and away the most highly complex. The essential component of the inner ear for hearing is the membranous labyrinth where the fibers of the auditory nerve (the nerve connecting the ear to the brain) end. The membranous labyrinth is a system of communicating sacs and ducts (tubes) filled with fluid (the endolymph). The membranous labyrinth is lodged within a cavity called the bony labyrinth. At some points the membranous labyrinth is attached to the bony labyrinth and at other points the membranous labyrinth is suspended in a fluid (the perilymph) within the bony labyrinth. The bony labyrinth has three parts: a central cavity (the vestibule), semicircular canals (which open into the vestibule) and the cochlea (a snail-shaped spiral tube). The membranous labyrinth also has a vestibule which consists of two sacs (called the utriculus and sacculus) connected by a narrow tube. The larger of the two sacs, the utriculus, is the principal organ of the vestibular system or system of balance. This system informs us about the position and movement of the head. The smaller of the two sacs, the sacculus, is also connected by membranous tube to the cochlea that contains the organ of Corti. The hair cells, which are the special sensory receptors for hearing, are found within the organ of Corti. The inner ear is also called the internal ear.

Ear, internal
There are three sections of the ear. They are the external ear, the middle ear, and the internal ear. The internal ear is far and away the most highly complex. The essential component of the internal ear for hearing is the membranous labyrinth where the fibers of the auditory nerve (the nerve connecting the ear to the brain) end. The membranous labyrinth is a system of communicating sacs and ducts (tubes) filled with fluid (the endolymph). The membranous labyrinth is lodged within a cavity called the bony labyrinth. At some points the membranous labyrinth is attached to the bony labyrinth and at other points the membranous labyrinth is suspended in a fluid (the perilymph) within the bony labyrinth. The bony labyrinth has three parts: a central cavity (the vestibule), semicircular canals (which open into the vestibule) and the cochlea (a snail-shaped spiral tube). The membranous labyrinth also has a vestibule which consists of two sacs (called the utriculus and sacculus) connected by a narrow tube. The utriculus, the larger of the two sacs, is the principal organ of the vestibular system (which informs us about the position and movement of the head). The smaller of the two sacs, the sacculus (literally, the little sac) is connected with a membranous tube in the cochlea containing the organ of Corti. It is in the organ of Corti that are situated the hair cells, the special sensory receptors for hearing. The internal ear is also called the inner ear.

Ear, Internal
The internal ear; the essential part of the organ of hearing. It consists of an osseous and a membranous portion.

Ear, low-set
A minor anomaly involving an ear situated down below its normal location. Technically, the ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation.

Ear, slanted
An ear that is slanted more than usual. Technically, an ear is slanted when the angle of the slope of the auricle is more than 15 degrees from the perpendicular. Also called a malrotated ear Considered a minor anomaly. The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation.

PREVIOUS AND NEXT TERMS
--------------------------------------

Ear, external
There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The external ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the visible projecting portion of the ear), the external acoustic meatus (the outside opening to the ear canal), and the external ear canal that leads to the ear drum. In sum, there is the pinna, the meatus and the canal. And the external ear has only to concentrate air vibrations on the ear drum and make the drum vibrate. The external ear is also called the outer ear.

Ear, foreign object in
A foreign object in the external ear canal. Foreign objects are often placed in the ear by young children or by accident while trying to clean or scratch the ear. There is often an accompanying external ear infection.

Ear, inner
There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The inner ear is far and away the most highly complex. The essential component of the inner ear for hearing is the membranous labyrinth where the fibers of the auditory nerve (the nerve connecting the ear to the brain) end. The membranous labyrinth is a system of communicating sacs and ducts (tubes) filled with fluid (the endolymph). The membranous labyrinth is lodged within a cavity called the bony labyrinth. At some points the membranous labyrinth is attached to the bony labyrinth and at other points the membranous labyrinth is suspended in a fluid (the perilymph) within the bony labyrinth. The bony labyrinth has three parts: a central cavity (the vestibule), semicircular canals (which open into the vestibule) and the cochlea (a snail-shaped spiral tube). The membranous labyrinth also has a vestibule which consists of two sacs (called the utriculus and sacculus) connected by a narrow tube. The larger of the two sacs, the utriculus, is the principal organ of the vestibular system or system of balance. This system informs us about the position and movement of the head. The smaller of the two sacs, the sacculus, is also connected by membranous tube to the cochlea that contains the organ of Corti. The hair cells, which are the special sensory receptors for hearing, are found within the organ of Corti. The inner ear is also called the internal ear.

Ear, internal
There are three sections of the ear. They are the external ear, the middle ear, and the internal ear. The internal ear is far and away the most highly complex. The essential component of the internal ear for hearing is the membranous labyrinth where the fibers of the auditory nerve (the nerve connecting the ear to the brain) end. The membranous labyrinth is a system of communicating sacs and ducts (tubes) filled with fluid (the endolymph). The membranous labyrinth is lodged within a cavity called the bony labyrinth. At some points the membranous labyrinth is attached to the bony labyrinth and at other points the membranous labyrinth is suspended in a fluid (the perilymph) within the bony labyrinth. The bony labyrinth has three parts: a central cavity (the vestibule), semicircular canals (which open into the vestibule) and the cochlea (a snail-shaped spiral tube). The membranous labyrinth also has a vestibule which consists of two sacs (called the utriculus and sacculus) connected by a narrow tube. The utriculus, the larger of the two sacs, is the principal organ of the vestibular system (which informs us about the position and movement of the head). The smaller of the two sacs, the sacculus (literally, the little sac) is connected with a membranous tube in the cochlea containing the organ of Corti. It is in the organ of Corti that are situated the hair cells, the special sensory receptors for hearing. The internal ear is also called the inner ear.

Ear, low-set
A minor anomaly involving an ear situated down below its normal location. Technically, the ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation.

Ear, outer

Ear, slanted
An ear that is slanted more than usual. Technically, an ear is slanted when the angle of the slope of the auricle is more than 15 degrees from the perpendicular. Also called a malrotated ear Considered a minor anomaly. The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation.

Eardrum
The tympanic membrane of the ear, or tympanum, the membrane that separates the middle ear from the external ear.

Eastern equine encephalitis
Abbreviated EEE. A mosquito-born viral disease. The EEE virus normally is found in freshwater swamp birds and mosquitoes that do not bite people. However, the virus is occasionally transmitted to other types of mosquitoes capable of biting horses and people. The risk of contracting EEE is highest in mid-to-late summer. The mosquitoes are killed by frost.

EBCT (electron beam computerized tomography)
A new (and controversial) noninvasive test for the detection of coronary artery disease (CAD). EBCT, or Ultrafast CT (as the technique will be termed here) is designed to measure calcium deposits in the coronary arteries. In patients with CAD, the plaques which make up the blockages contain significant amounts of calcium, which can be detected with Ultrafast CT. This test will identify calcium in blockages as mild as 10-20%, which would not be detected by standard physiologic stress testing.

EBM
Evidence-based medicine.

We thank you for using the Health Dictionary to search for Ear, outer. If you have a better definition for Ear, outer than the one presented here, please let us know by making use of the suggest a term option. This definition of Ear, outer may be disputed by other professionals. Our attempt is to provide easy definitions on Ear, outer and any other medical topic for the public at large.

This dictionary contains 59020 terms.

ear,outer / ar, outer / er, outer / ea, outer / ear outer / ear,outer / ear, uter / ear, oter / ear, ouer / ear, outr / ear, oute / eear, outer / eaar, outer / earr, outer / ear,, outer / ear, outer / ear, oouter / ear, ouuter / ear, outter / ear, outeer / ear, outerr / 3ar, outer / 4ar, outer / rar, outer / far, outer / dar, outer / sar, outer / war, outer / eqr, outer / ewr, outer / esr, outer / exr, outer / ezr, outer / ea4, outer / ea5, outer / eat, outer / eag, outer / eaf, outer / ead, outer / eae, outer / ea3, outer / ear, 9uter / ear, 0uter / ear, puter / ear, luter / ear, kuter / ear, iuter / ear, 8uter / ear, o7ter / ear, o8ter / ear, oiter / ear, okter / ear, ojter / ear, ohter / ear, oyter / ear, o6ter / ear, ou5er / ear, ou6er / ear, ouyer / ear, ouher / ear, ouger / ear, oufer / ear, ourer / ear, ou4er / ear, out3r / ear, out4r / ear, outrr / ear, outfr / ear, outdr / ear, outsr / ear, outwr / ear, oute4 / ear, oute5 / ear, outet / ear, outeg / ear, outef / ear, outed / ear, outee / ear, oute3 /