Special senses
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The ear is divided into three parts - the outer, middle, and inner ear. The outer ear collects sound waves and funnels them through the ear canal to the middle ear, which contains three small bones that vibrate the inner ear. The inner ear contains the cochlea, which has tiny hair cells that change the vibrations into electrical signals sent to the brain. Ear tubes are small tubes inserted into the eardrum to drain fluid and prevent infections by allowing air into the middle ear. The document also defines several eye and ear-related medical terms.
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2. EENT - Eyes, ears, nose, and throat. An ENT specialist focuses on these areas while an otolaryngologist adds the head.
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1. Doctors sometimes insert pressure-equalizing (PE) tubes in the eardrum to prevent middle ear infections like otitis media, which is common in young children.
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This document defines 10 common abbreviations used in ophthalmology and otolaryngology:
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The document discusses various medical terms related to the ear, eye, and vision. It defines a pressure equalizing tube (PE tube) as a small tube placed in the eardrum to equalize pressure and drain fluid from the middle ear. It also mentions complications that can arise from PE tube placement like frequent drainage, plugging, or persistent perforation of the eardrum. Other terms defined include EENT (ear, eye, nose, and throat physician), conduction of sound through the skull bones, the abbreviation "au" meaning both ears, and otitis media (middle ear infection). Eye and vision related terms include emmetropia (proper eyeball length for focus on the retina), strabismus
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This document defines common abbreviations used in otolaryngology. It explains that a PE tube is a small tube surgically placed in a child's eardrum to drain fluid and equalize pressure in the middle ear. It also defines abbreviations for eye, ear, nose, and throat; bone conduction; both ears; otitis media; emmetropia; exotropia; left eye; extraocular movement; and visual acuity.
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The document summarizes the structure and function of the human ear. It describes the three main parts of the ear - outer, middle, and inner ear. Sound waves enter the outer ear and cause the eardrum and three tiny bones of the middle ear to vibrate. These vibrations are transmitted to the fluid-filled inner ear, causing waves that stimulate hair cells and nerves to send signals to the brain. The basilar membrane of the inner ear helps the brain perceive pitch and loudness of sounds.
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The ear is made up of three sections - the outer, middle, and inner ear. The outer ear collects sounds and funnels them through the ear canal. In the middle ear, the eardrum vibrates and these vibrations are transmitted by three small bones to the inner ear. In the inner ear, vibrations are converted to nerve signals that travel to the brain. The inner ear also contains semicircular canals that help with balance by detecting movement. Common ear problems include ear infections, earwax buildup, deafness, and Meniere's disease. To keep ears healthy, avoid putting objects in the ear canal and protect your hearing from loud noises.
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Special senses
- 1. By: Anne Cozzi Biology 120
- 2. The ear is much more than the flexible soft tissue that attaches to the side of your head. The ear is actually very complex. It is divided into 3 parts called the outer, middle, & inner ear. Each part performs an important function for the process of hearing.
- 4. The outer ear consists of an auricle and ear canal.The eardrum is a very thin membrane that separates the outer ear from the middle ear.
- 5. The middle ear is an air filled chamber containing 3 small bones called ossicles. They connect the eardrum to the inner ear and are named individually the malleus (hammer), incus (anvil) and stapes (stirrup).
- 6. The last part of the ear is called the inner ear. It contains a structure called the cochlea that is shaped much like a snail's shell. This organ contains small hair cells bathed in fluid.
- 7. Ear tubes are known by several names: tympanostomy tubes, ventilating tubes, pressure equalizing tubes or most frequently, PE tubes. They are tiny hollow tubes made of a soft material. PE tubes decrease the frequency of ear infections by allowing air in and helping fluid to drain into the throat. Preventing fluid from staying in the middle ear can help to restore and preserve normal hearing. The small tubes that are used do not cause hearing loss or long term damage to the eardrum.
- 9. abbreviation for eyes, ears, nose, and throat
- 10. Bone conduction is the conduction of sound to the inner ear through the bones of the skull. Bone conduction is the reason why a person's voice sounds different to him/her when it is recorded and played back. Since the skull transmits high frequencies with less attenuation than does air , most people perceive their own voice as being of a higher pitch than others hear it.
- 11. Emmetropia:a state of proper correlation between the refractive system of the eye and the axial length of the eyeball, rays of light entering the eye parallel to the optic axis being brought to focus exactly on the retina.
- 12. Exotropia is a type of strabimus or eye misalignment. Exotropia refers to an outward deviation of the eyes. Although Exotropia commonly begins around age 2 to 4 years, it can appear at any age.
- 13. Left Eye OS is the abbreviation for left eye. OS stands for the Latin term, oculus sinister Right Eye The medical abbreviation for the right eye is o.d., which stands for "oculus dexter". In Latin, "dexter" means right, fortunate, or favorable |
- 14. An ear infection is an inflammation of the middle ear, usually caused by bacteria, that occurs when fluid builds up behind the eardrum. Anyone can get an ear infection, but children get them more often than adults. Three out of four children will have at least one ear infection by their third birthday. In fact, ear infections are the most common reason parents bring their child to a doctor. The scientific name for an ear infection is otitis media (OM
- 16. Eye movements are controlled by muscles innervated by cranial nerves III, IV and VI. The most common symptom of damage to these nerves is double vision. The oculomotor nerve has the additional function of control of the pupil .
- 17. Visual acuity is the spatial resolving capacity of the visual system. This may be thought of as the ability of the eye to see fine detail. There are various ways to measure and specify visual acuity, depending on the type of acuity task used. Visual acuity is limited by diffraction, aberrations and photoreceptor density in the eye . Apart from these limitations, a number of factors also affect visual acuity such as refractive error, illumination, contrast and the location of the retina being stimulated.