Sensory Reception (Touch, Balance, Hearing) Flashcards
Specialized cells in a sense organ that detect the presence of one type of stimulus
Receptor Cells
In the back of the retina, ____ detect dim light and ____ detect color
Rods, Cones
Sense physical tough, balance, hearing
Mechanoreceptors
Sense presence of chemicals in taste, smell, O2, and CO2
Chemoreceptors
Sense pain and damage to cells
Nociceptors
Sense light
Photoreceptors
Superficial receptor found in skin, senses pressure and vibration
Pacinian corpuscle
Superficial receptor found in skin, senses ventral indentation, steady pressure
Tactile disk
Superficial receptor found in skin, senses touch, point discrimination, stroking. (Two point test)
Meissner’s corpuscle
Superficial receptor found in the skin, senses stretch of the skin
Ruffini’s corpuscle
Superficial receptor found in skin, senses vertical indentation, steady pressure
Merkel’s receptor
Superficial receptor found in skin, senses velocity and direction of air movements over skin
Hair root receptor
The canine ear is ____ shaped
L
The external ear
Auricle/Pinna
Auricle or pinna includes
External auditory meatus and eardrum
The function of the auricle/pinna is to
capture sound wave vibrations and direct them toward the eardrum
Air filled cavity in the temporal bone
Middle ear
Mechanical linkage of eardrum to inner ear
Auditory ossicles (3 bones, malleus, incus, stapes, middle ear)
Malleus shape
Hammer
Incus Shape
Anvil
Stapes Shape
Stirrup
The ________ connects middle ear to nasopharynx
Eustachian (auditory) Tube
The function of the Eustachian tube is to ____________ _____________ during rapid changes in ____ ____________ from changes in elevation
equalize pressure, air pressure
Fluid filled cavity in the temporal bone
Inner ear
Cranial Nerve of Temporal bone/Inner ear
CNVIII (8)
Static equilibrium and linear acceleration in Inner ear
Vestibule
Primary hearing in inner ear
Cochlea
Senses angular acceleration and movement in inner ears
Semicircular canals
Lines cavity of inner ear, helps with balance and posture
Endolymph
Your balance decreases if #? of senses are gone
2
Equilibrium and balance uses info from ______, _______, _______
vision, proprioceptors, vestibular apparatus (inner ear)
Vestibular apparatus vestibule contains ______, and ______ with each one containing a sensory structure called _______
utricle, saccule, macula
Senses direction and rotation of the head and rate of acceleration of the head to maintain upright posture
Semicircular canals
