chpt 25.txt

  1. Air Embolism -
    The presence of air in the veins, which can lead to cardiac arrest if it enters the heart.
  2. Blowout Fracture -
    A fracture of the orbit or of the bones that support the floor of the orbit
  3. Conjunctivitis -
    Inflammation of the conjunctiva.
  4. Eustachian Tube -
    A branch of the internal auditory canal that connects the middle ear to the oropharynx.
  5. Anisocoria -
    Naturally occurring uneven pupil size.
  6. Conjunctiva -
    The delicate membrane that lines the eyelids and covers the exposed surface of the eye.
  7. Cornea -
    The transparent tissue layer in front of the pupil and iris of the eye.
  8. External Auditory Canal -
    The ear canal; leads to the tympanic membrane.
  9. Globe -
    The eyeball.
  10. Lacrimal Glands -
    The glands that produce fluids to keep the eye moist; also called tear glands.
  11. Mastoid Process -
    The prominent bony mass at the base of the skull about 1" posterior to the external opening of the ear.
  12. Pinna -
    The external, visible part of the ear.
  13. 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.
  14. Lens -
    The transparent part of the eye through which images are focused on the retina.
  15. Optic Nerve -
    A cranial nerve that transmits visual information to the brain.
  16. Pupil -
    The circular opening in the middle of the iris that admits light to the back of the eye.
  17. 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.
  18. Sclera -
    The tough, fibrous, white portion of the eye that protects the more delicate inner structures.
  19. Subcutaneous Emphysema -
    A characteristic crackling sensation felt on palpation of the skin, caused by the presence of air in soft tissues.
  20. Tragus -
    The small, rounded, fleshy bulge that lies immediately anterior to the ear canal.
  21. Retinal Detachment -
    Separation of the retina from its attachments at the back of the eye.
  22. Sternocleidomastoid muscles -
    The muscles on either side of the neck that allow movement of the head.
  23. Temporomandibular Joint (TMJ) -
    The joint formed where the mandible and cranium meet, just in front of the ear.
  24. Turbinates -
    Layers of bone within the nasal cavity.
  25. 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.
Card Set
chpt 25.txt