The presence of air in the veins, which can lead to cardiac arrest if it enters the heart.
Blowout Fracture -
A fracture of the orbit or of the bones that support the floor of the orbit
Inflammation of the conjunctiva.
Eustachian Tube -
A branch of the internal auditory canal that connects the middle ear to the oropharynx.
Naturally occurring uneven pupil size.
The delicate membrane that lines the eyelids and covers the exposed surface of the eye.
The transparent tissue layer in front of the pupil and iris of the eye.
External Auditory Canal -
The ear canal; leads to the tympanic membrane.
Lacrimal Glands -
The glands that produce fluids to keep the eye moist; also called tear glands.
Mastoid Process -
The prominent bony mass at the base of the skull about 1" posterior to the external opening of the ear.
The external, visible part of the ear.
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.
The transparent part of the eye through which images are focused on the retina.
Optic Nerve -
A cranial nerve that transmits visual information to the brain.
The circular opening in the middle of the iris that admits light to the back of the eye.
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.
The tough, fibrous, white portion of the eye that protects the more delicate inner structures.
Subcutaneous Emphysema -
A characteristic crackling sensation felt on palpation of the skin, caused by the presence of air in soft tissues.
The small, rounded, fleshy bulge that lies immediately anterior to the ear canal.
Retinal Detachment -
Separation of the retina from its attachments at the back of the eye.
Sternocleidomastoid muscles -
The muscles on either side of the neck that allow movement of the head.
Temporomandibular Joint (TMJ) -
The joint formed where the mandible and cranium meet, just in front of the ear.
Layers of bone within the nasal cavity.
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.