General and Special Senses

Meissner's corpuscle

Pacinian corpuscle

Meissner’s Corpuscle

Pacinian corpuscle

Taste Bud

Auricle

External Auditory Canal

Tympanum

Malleus

Incus

Stapes

Semicircular Canals

Cochlea

Vestibulocochlear nerve

Cochlea

Vestibule

Semicircular Canals

Cornea

Sclera

Optic Nerve

Iris

Pupil

Lens

Ciliary Body

Sclera

Choroid

Retina

Optic Nerve

Optic Disc

Exteroceptor

Sensory receptor that responds to stimuli outside the body

Interoceptor

Sensory receptor that responds to stimuli within the body

Proprioceptor

Sensory receptor that monitors body position

Meissner’s Corpuscles

Sensory receptor found in dermal papillae, sensitive to light touch

Pacinian Corpuscles

Sensory receptor within the dermis, sensitive to deep pressure

Two-Point Discrimination

Test to determine the minimum distance between two points that is perceived as two distinct touches

Tactile Localization

Tests how sensitive an area is by asking the patient to determine where they had been touched

Adaptation

Prolonged stimulus turns into lack of sensitivity

Sweet, Sour, Salty, Bitter, Umami

5 basic tastes

equally

Taste buds are distributed ______ over the tongue

Superior nasal cavity

Location of olfactory receptors

Visual acuity test

Patient reads letters or symbols off an eye chart, tests lens, ciliary body, and length of eyeball

Astigmatism test

Test done with a chart with lines radiating out from the center, tests for an irregular cornea

Near point of vision test

Move the vertical pin towards the patient’s eyes until it becomes blurry, determines how close up a patient can see & the elasticity of lens

Accommodation pupillary reflex test

The patient looks far away until their eyes adjust, and then focuses on something up close; tests pupil’s constriction speed

Ophthalmoscope

Equipment used to examine a patient’s retina

Organ of Corti

Receptor organ for hearing, contained within the cochlea

Otoscope

Used to examine tympanum

Weber Test

Tuning fork placed medially on head, tests for conductive & sensorineural deafness

Rinne Test

Tuning fork placed on mastoid process, then held over auricle, tests for conductive deafness, compares bone and air conduction

Barany Test

Spin the patient in a chair rapidly, then lock eyes, tests dynamic equilibrium, how fast can the patient decelerate and focus vision

Romberg Test

Patient stands straight and looks forward with their eyes open, and then closes their eyes, Tests static equilibrium