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59 Cards in this Set
- Front
- Back
When an adequate stimulus acts on a receptor, a potential develops in the receptor's membrane. It is called a(n) _____ potential.
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receptor
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Sensations produced by the receptors of general sense organs are often called the
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somatic senses.
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Which of the following is not a group (classified by location) of receptors?
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chemoreceptors
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The activation of which two types of proprioceptors allows us to orient our body in space and provides us with positional information about specific body parts while at rest or during movement?
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tonic and phasic proprioceptors
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The web-like arrangements of free nerve endings that surround hair follicles and detect movement are
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root hair plexuses.
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The category of receptors that are activated by intense stimuli of any type resulting in tissue damage is
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nociceptors.
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Which type of receptor is found only in the eye?
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photoreceptor
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The general (somatic) sensory receptors may be classified anatomically as either
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free nerve endings or encapsulated nerve endings.
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Which two types of nerve fibers carry pain impulses from nociceptors to the brain?
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acute and chronic
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The type of deep or visceral pain that develops more slowly over time travels over
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fibers and is often described as dull or aching.
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Free nerve endings called _____ mediate sensations of heat and cold.
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thermoreceptors
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The neural pathways in tickle involve both the _____ and _____ before the impulses reach the cerebral cortex.
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thalamus; hypothalamus
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Tactile corpuscles are encapsulated tactile end organs, also called
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Meissner corpuscles.
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Which two types of stretch receptors are associated with muscles and tendons and are classified as proprioceptors?
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muscle spindles and Golgi tendon organs
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What proprioceptor is located at the point of junction between muscle tissue and tendon?
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Golgi tendon organ
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Which of the following is not a general sense?
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Taste
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Which of the following is not a true statement?
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Thermoreceptors are activated by pressure
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Which of the following structures is a disc-shaped nerve ending that is responsible for Discerning light touch?
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Merkel discs
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Which of the following is not a proprioceptor?
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root hair plexus
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Proprioceptors
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Function and relation to movement and body position
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Free nerve endings are the simplest, most common, and most widely distributed sensory receptors
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True
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Somatic sense receptors located in muscles and joints are called visceral receptors
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False
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Golgi tendon receptors are stimulated by excessive muscle contraction
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True
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Exteroceptors are often called cutaneous receptors because of their placement in the skin
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True
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The term __________describes the free nerve ending that serve as the primary sensory receptor for pain.
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nociceptor
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Take your breath away fast pain is also known as____________ pain
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somatic
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Deep pain that develops slowly over time and travels over B fibers is also called ________pain
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visceral
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The inability of diabetic to send pain on certain areas of the body surface is known as diabetic_________
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neuropathy
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The primary mechanism of ___________appears to be an abnormal amplification of pain information processed in the CNS causing chronic and widespread musculoskeletal pain
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fibromyalgia
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____________mediate sensation of heat and cold
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Thermoreceptor
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___________tactile sensation mediated by free nerve endings
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Itch
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__________Golgi tendon organs
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Proprioceptors
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__________tactile stimulation of the skin by someone else
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Tickle
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___________mediated by a free nerve ending called a Merkel disc
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Light touch
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____________encapsulated tactile end organs
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Meissner corpuscle
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___________variant of Meissner corpuscle that acts as a mechanoreceptor
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Krause end bulbs
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________________found in the Deep dermis of the skin and responds quickly to sensation of deep pressure
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Pacini corpuscle
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___________incapable of feeling painful stimuli
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Brain
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____________release occurs during an allergic reaction
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Histamine
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General somatic sensory receptors may be classified anatomically as either free nerve endings are
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encapsulated nerve endings
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Pain that is perceived as being superficial but is actually caused by an underlying organ is called ___________pain
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referred
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visceroreceptors are located in the internal
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organs
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Somatic senses enable sensation of
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touch, temperature, and pain.
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Intense stimuli of any type, that results in tissue damage will activate
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nociceptors
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The receptors responsible for sensing deep pressure and continuous touch are the_________
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Ruffinis corpuscles
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___________function and relation to movement and position
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Proprioceptors
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_____________are receptors found in most body tissues
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Free nerve endings
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As you wear a new engagement ring, you lose the constant feeling of its presence on your hand this is
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adaptation
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___________found only in the eye
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Photoreceptors
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____________activated by changes in temperature
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Thermoreceptors
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_____________concentrated in the hypothalamus
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Osmoreceptors
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____________sensation is one of pain that may be caused by a toxic chemical
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Nociceptors
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___________activated for sense of taste and smell
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Chemoreceptors
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___________activated by stimuli that “deform” or change the position of the receptor
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Mechanoreceptors
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A receptor potential is a graded response that is graded to the strength of the stimulus.
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True
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If we not only remain aware of a particular sensation over time but also interpret what that sensation means in a larger context, the process is called adaptation.
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False
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Special sense receptors are grouped into localized areas
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True
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A procedure to determine the density and distribution of general sense receptors is known as the three-point discrimination test.
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False
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Proprioreception tells us at each moment the level of contraction and stretch in each of our skeletal muscles
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True
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