Chapter 27 Face and Neck Flashcards
Air Embolism
the presence of air in the veins , which can lead to cardiac arrest it is enters the heart.
Anisocoria
naturally occurring uneven pupil size.
Blow-Out Fracture
fracture of the orbit or of the bones that support the floor of the orbit.
Conjunctiva
the delicate membrane that lines the eyelids and covers the exposed surface of the eye.
Conjunctivitis
inflammation of the conjunctiva
Eustachian Tube
branch of the internal auditory canal that connects the middle ear to the oropharynx.
External Auditory Canal
the ear canal; leads to the tympanic membrane.
Globe
the eyeball
Iris
the muscle surrounding tissue behind the cornea that dilate and constrict the pupil, regulate the amount of light that enters the eye; pigmentation in this tissue gives the eye its color.
Lacrimal Glands
glands that produce fluids to keep the eye moist; “Tear Glands”
Lens
transparent part of the eye through which images are focused on the retina.
Mastoid Process
prominent bony mass at the base of the skull about 1 inch posterior to the external opening of the ear.
Optic Nerve
cranial nerve that transmits visual information to the brain.
Pinna
the external visible part of the ear.
Pupil
the circular opening in the middle of the iris that admits light to the back of the eye.
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 electric impulses, which are carried by the optic nerve to the brain.
Retinal Detachment
separation of the retina from its attachments at the back of the eye.
Sclera
the tough, fibrous, white portion of the eye that protects the more delicate inner structures.
Sternocleidomastoid Muscles
the muscles on either side of the neck that allow movement of the head.
Subcutaneous Emphysema
a characteristic, crackling sensation felt on palpation of the skin, caused by the presence of air in soft tissues.
Temporomandibular Joint
the joint formed where the mandible and the cranium meet, just in front of the ear.
Tragus
the small, rounded, fleshy bulge that lies immediately anterior to the ear canal.
Turbinates
layers of bone within the nasal cavity
Tympanic Membrane
the eardrum, which lies between the external and middle ear.