Sensory Receptors Flashcards
Glutamate acts ________ and last for ________.
Instantaneously, a few milliseconds
Substance P is released ________ and builds up in concentration over ________.
Slowly, minutes
In an allostatic response, compensation is usually through ________, ________, and ________.
Posture, mechanics, metabolism
________ are receptors responsible for touch, slow vibration.
Meissner’s corpuscles
Muscle spindles are located in the ________ of the muscle and give info about muscle ________ and ________.
Belly, length, rate of change of length
Aδ fibers use ________ as their neurotransmitter and terminate in the ________.
Glutamate, lamina marginalia of the dorsal horns
________ are slow adaptive receptors in order to give the brain constant information.
Golgi tendon apparatus’
________ are receptors responsible for pressure and joint rotation.
Ruffini’s end organ
Fast, sharp pain from mechanical or heat stimuli travels on ________ rapidly.
Aδ fibers
Muscle stretch reflexes are initiated by a ________.
Sudden stretch of muscle spindle.
C fibers use ________ and glutamate as their neurotransmitters and terminate in the ________.
Substance P, substantia gelatinosa of the dorsal horns
________ are receptors responsible for fast vibration.
Pacinian corpuscles
________ are rapidly adaptive receptors and give information about change as it happens.
Pacinian corpuscles
Golgi tendon organs are located in muscle ________ and give info about ________ and ________.
Tendons, tendon tension, rate of change of tendon tension
________ are receptors responsible for muscle stretch and load.
Golgi tendon apparatus
Sensory fibers are composed of two types. ________ are activated in slow and rapid lengthening of muscle spindle fibers. ________ are activated only during slow lengthening.
Primary endings (annulospiral), secondary endings
With prolonged stimulation, the frequency of action potentials ________.
Falls
The ________ acts via the periaqueductal gray, periventricular areas, raphe magnus nucleus, and nucleus reticularis paragigantocellularis.
Analgesia system
Slow, chronic pain from chemical, mechanical, or thermal stimuli travels on ________ slowly.
C fibers
Stimulation of the intralaminar nuclei of the thalamus has a strong ________ effect on the entire brain.
Arousal
The Golgi tendon reflex occurs when ________.
Stress on a tendon becomes too great
Muscle spindles have few or lack ________.
Actin or myosin filaments
The body knows when a sensory receptor is receiving more or less stimulation by ________.
The frequency of action potentials
________ are receptors responsible for touch and pressure.
Free nerve endings
