A&P Chapter 14 Flashcards
A thin membrane that separates the middle ear from the inner ear and transmits vibrations to the ossicles; also called the eardrum
Tympanic Membrane
A thin, transparent membrane that covers the sclera and internal surfaces of the eyelids
Conjunctiva
An oval opening between the middle ear and the vestibule
Oval Window
Muscles that do not originate in the body part to which they insert
Extrinsic Muscles
Receptors in the tongue and mouth that sense salt and sweet sensations separately; also called taste receptors
Taste Buds
An inflammation of the conjunctival that is usually caused by bacteria, viruses, or allergies and should be considered highly contagious; also called pink eye
Conjunctivitis
Hair-like projections of the gustatory cells of the taste buds
Taste Hairs
The circular opening in the center of the eye, through which light passes to the lens
Pupil
A small elevation in each ear canal
Crista
The organ that is the primary receptor for sound, and is made up of thousands of individual cilia, each with their own associated nerve
Organ of Corti
The shell-shaped structure within the inner ear that contains the organ of Corti
Cochlea
The large outside portion of the ear through which sound waves enter the ear; also called the pinna
Auricle
An expansion at the end of each semicircular canals containing a crista ampullaris
Ampulla
One of three anatomic parts of the ear; it consists of the inner portion of the tympanic membrane and the ossicles
Middle Ear
The area in which sound waves are received from the auricle before they travel on to the eardrum; also called the ear canal
External Auditory Canal
The maintenance of balance when the head and body are motionless
Static Equilibrium
Ducts located on the nasal border of the eyelids through which tears from the lacrimal sacs pass
Lacrimal Ducts
The cavity leading from the exterior atmosphere to the tympanum; also called the external auditory canal
Ear Canal
Receptors located in various areas of the skin to detect the sense of touch
Touch Receptors
The white part of the eye
Sclera
Thin fold of skin that covers and protects the eye
Eyelid
The structure in which tears are produced
Lacrimal Gland
One of two mechanisms involved in the sensation of position, balance, and movement, it senses movements of the head
Kinetic Labyrinth System
Fluid in the membranous labyrinth of the ear
Endolymph
The eyeball
Globe
Specialized patches of tissue within the utricle and saccule that aid in the sensation of motion
Macula
Passageways for odor impulses to travel from the olfactory bulb to the olfactory cortex
Olfactory Tracts
The posterior area of the globe between the lens and the iris
Posterior Chamber
Clouding in the lens of the eye or it’s surrounding transparent membrane; normally a result of aging
Cataracts
The opening in the bony orbit behind the eyeball through which the optic nerve passes to the eyeball
Optic Foramen
A delicate, 10-layered structure of nervous tissue located in the rear of the interior of the globe that receives light and generates nerves signals that are transmitted to the brain through the optic nerve
Retina
A jelly-like substance found in the posterior compartment of the eye between the lens and the retina
Vitreous Humor
The large outside portion of the ear through which sound waves enter; also called the auricle
Pinna
The organs of site
Eyes
The structures in which tears are secreted and drained from the eye
Lacrimal Apparatus
The sense of taste
Gustation
Receptors in the tongue and mouth that sense salt and sweet sensations separately; also called taste buds
Taste Receptors
The anterior area of the globe between the lens and the cornea that is filled with aqueous humor
Anterior Chamber
The transparent part of the eye through which images are focused on the retina
Lens
One of two mechanisms involved in the sensation of balance and movement, it evaluates the position of the head relative to gravity or linear acceleration/deceleration
Static Labyrinth System
An enlarged portion of the labyrinth of the inner ear that contains a specialized patch of tissue that AIDS in the sensation of position and motion
Utricle
One of the three anatomic parts of the ear; it consists of the cochlea and semicircular canals
Inner Ear
Sac in the eye into which tears are drained from the lacrimal glands
Lacrimal Sac
The area in the brain that receives odor impulses and perceives them as smell
Olfactory Cortex
Small opening in the corner of the eye through which tears drain from the lacrimal gland into the lacrimal ducts
Punctum Lacrimale
One of three anatomic parts of the ear; it contains the pinna, the ear canal, and the exterior portion of the tympanic membrane
External Ear
The transparent anterior portion of the eye that overlies the iris and pupil
Cornea
The area in the brain where signals from the optic nerve are converted into visual images
Visual Cortex
The sensory organ in a semicircular canal that aids with dynamic equilibrium
Crista Ampullaris
Maintenance of balance when the head and body are suddenly moved or rotated
Dynamic Equilibrium
Any of several conditions that result in excess skin sensitivity, especially to touch or cold
Hyperesthesia
A membrane within the inner ear that contains otolith and aids in the sensation of motion
Otolithic Membrane
A thin membrane that separates the middle ear from the inner ear and transmits vibrations to the ossicles; also called the tympanic membrane
Eardrum
Small calcium carbonate stones within the gelatinous protein of the otolithic membrane of the inner ear that aid in the sensation of motion
Otolith
The sphincter 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
Iris
A cap of gelatinous tissue in the ear that is involved in the sensation of balance and movement
Cupula
A canal within the cochlea that receives vibrations from the ossicles
Cochlear Duct
The clear, watery fluid in the anterior chamber of the globe
Aqueous Humor
An enlarged region of the membranous labyrinth of the inner ear that contains a specialized patch of tissue that aids in the sensation of position and motion
Saccule
