Emergency Care & Transp. 10th Edition 2011 Jones & Bartlett
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each of the black spaces below before clicking
on it to display the answer.
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| air embolism | The presence of air in the veins, which can lead to cardiac arrest if it enters the heart.
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| anisocoria | Naturally occurring uneven pupil size.
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| blowout fracture | A fracture of the orbit or of the bones that support the floor of the orbit.
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| conjunctiva | The delicate membrane that lines the eyelids and covers the exposed surface of the eye.
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| conjunctivitis | Inflammation of the conjunctiva.
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| cornea | The transparent tissue layer in front of the pupil and iris of the eye.
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| eustachian tube | A branch of the internal auditory canal that connects the middle ear to the oropharynx.
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| external auditory canal | The ear canal; leads to the tympanic membrane.
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| globe | The eyeball.
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| iris | The muscle and surrounding tissue behind the cornea that dilate and constrict the pupil, regulating the amount of light that enters the eye; pigment in this tissue gives the eye its color.
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| lacrimal glands | The glands that produce fluids to keep the eye moist; also called tear glands.
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| lens | The transparent part of the eye through which images are focused on the retina.
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| mastoid process | The prominent bony mass at the base of the skull about 1" posterior to the external opening of the ear.
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| optic nerve | A cranial nerve that transmits visual information to the brain.
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| pinna | The external, visible part of the ear.
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| pupil | The circular opening in the middle of the iris that admits light to the back of the eye.
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| retina | The light-sensitive area of the eye where images are projected; a layer of cells at the back of the eye that changes the light image into electrical impulses, which are carried by the optic nerve to the brain.
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| retinal detachment | Separation of the retina from its attachments at the back of the eye.
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| sclera | The tough, fibrous, white portion of the eye that protects the more delicate inner structures.
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| sternocleidomastoid muscles | The muscles on either side of the neck that allow movement of the head.
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| subcutaneous emphysema | A characteristic crackling sensation felt on palpation of the skin, caused by the presence of air in soft tissues.
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| temporomandibular joint (TMJ) | The joint formed where the mandible and cranium meet, just in front of the ear.
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| tragus | The small, rounded, fleshy bulge that lies immediately anterior to the ear canal.
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| turbinates | Layers of bone within the nasal cavity.
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| tympanic membrane | The eardrum; a thin, semitransparent membrane in the middle ear that transmits sound vibrations to the internal ear by means of auditory ossicles.
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